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London skyline with Tower Bridge

British Isles itinerary — September 2027

For the British Isles trip (London, Dublin & Edinburgh), September 2027 is a comfortable month by weather. Across London, Dublin and Edinburgh, daytime highs run from about 17°C / 63°F to 20°C / 68°F. Plan around 7–9 days for the full London, Dublin & Edinburgh loop.

In this order — about 7–9 days:

  1. London3 nightsUnited Kingdom
  2. Dublin2 nightsIreland
  3. Edinburgh2 nightsUnited Kingdom
  • Route noteReserve the longest intercity leg first and keep transfer days free of timed sights.
Plan British IslesFree and No sign-up

By TripSapien · Updated September 24, 2026

1

London

London in September

Temp

66°F / 53°F

19.1°C / 11.7°C

Rain

15d

1.8in · 45.8mm

Light

13.6h

September is shoulder season, with State Rooms still open early month and strong weather for Greenwich and South Bank walks.

City overview

London sits on the River Thames, where Westminster, the City, South Kensington, Camden, Shoreditch, Notting Hill, Greenwich, Mayfair, and Covent Garden compress royal government, finance, museums, markets, theatre, and immigrant food into one transport map. The Tube, Elizabeth Line, National Rail terminals, and river piers make the city work as a set of village-like districts rather than one walkable center.

Food & drink

London food spans fish and chips, full English breakfasts, Sunday roasts, pie and mash, Brick Lane curry houses, salt-beef beigels, jellied eels, and modern pub dining. Borough Market, Brick Lane, Chinatown, Brixton Village, Broadway Market, and Southall are the first food map rather than one single restaurant row.

Events & festivals

Show all 20 events for September
  • Sep 1 – Sep 15

    Cabaret At The Kit Kat Club

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 1 – Sep 30

    Totally Thames Festival 2027

    A month-long celebration of the River Thames with arts, culture, and environmental events along the riverbanks in London.

    Planning lead · dates set closer in · Source: festival research

  • Sep 2 – Sep 19

    Portobello Film Festival

    International film festival.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 7 – Oct 6

    London Fashion Film Festival

    International Fashion Film Festival.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 9 – Sep 20

    BFI London Film Festival 2027

    The UK's largest public film event, screening new films from around the world at various venues across London.

    Planning lead · dates set closer in · Source: festival research

  • Sep 11 – Sep 19

    London Design Festival

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 11 – Sep 12

    Waterworks Festival 2026

    Waterworks is back in Gunnersbury Park in London with 70+ artists playing bass, house, and techno during this single day fest.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 17 – Sep 19

    Cosmic Void Festival 2026

    This black metal festival takes place in various venues across 3 days in Camden Town.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 17

    Hidden Film Festival

    International Music Video Contest.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 18 – Oct 18

    British Horror Film Festival

    Horror Film Festival in Great Britain.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 18 – Sep 19

    HowTheLightGetsIn London 2026

    There will be political rebels, Nobel Laureates, best-selling authors, live headlining bands and more in store at this 2-day festival.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 18 – Sep 19

    Open House London 2027

    A weekend event offering public access to many of London’s architecturally significant buildings, many of which are normally closed to the public.

    Planning lead · dates set closer in · Source: festival research

  • Sep 18 – Sep 22

    London Fashion Week 2027

    One of the 'Big Four' fashion weeks globally, showcasing the latest collections from British and international designers.

    Planning lead · dates set closer in · Source: festival research

  • Sep 30 – Oct 2

    AVA Festival London 2026

    AVA, the beloved Northern Irish festival comes to London this March.

    Planning lead · projected date · Source: TripSapien festival dataset

Top sights

Ranked for September suitability using weather, setting, ratings, and review volume.

Map of London with pinned top attractions (1 through 10)
  1. 1Victoria and Albert Museum
  2. 2National Gallery
  3. 3British Museum
  4. 4Westminster Abbey
  5. 5Natural History Museum
  6. 6Tower Bridge
  7. 7Tower of London
  8. 8Buckingham Palace State Rooms
  9. 9Tate Modern and Millennium Bridge
  10. 10Houses of Parliament and Big Ben
  • Victoria and Albert Museum in London1

    Victoria and Albert Museum

    4.8★indoorOpen daily

    The V&A in South Kensington holds decorative arts, fashion, sculpture, photography, Islamic art, cast courts, theatre collections, and design objects. It sits beside the Natural History Museum and Science Museum.

    Wikipedia
  • National Gallery in London2

    National Gallery

    4.8★indoorOpen daily

    The Trafalgar Square museum opened in 1838 and holds Van Eyck, Leonardo, Titian, Velazquez, Rembrandt, Turner, Monet, Van Gogh, and Seurat. Charing Cross and Leicester Square stations are short walks away.

    Wikipedia
  • British Museum in London3

    British Museum

    4.7★indoorOpen daily

    The Bloomsbury museum opened to the public in 1759 and displays Egyptian mummies, the Rosetta Stone, Assyrian reliefs, Greek sculpture, prints, coins, and global archaeology. Tottenham Court Road and Holborn stations are the easiest Tube approaches.

    Wikipedia
Show 7 more sights
  • 4Westminster Abbey
  • 5Natural History Museum
  • 6Tower Bridge
  • 7Tower of London
  • 8Buckingham Palace State Rooms
  • 9Tate Modern and Millennium Bridge
  • 10Houses of Parliament and Big Ben

Neighborhoods

  • Westminster and St James's in london gb1

    Westminster and St James's

    Westminster is ceremonial and governmental, with Parliament, Westminster Abbey, Whitehall, St James's Park, Buckingham Palace, and The Mall in one high-security walking zone.

  • South Kensington and Chelsea in london gb2

    South Kensington and Chelsea

    South Kensington is museum-heavy, with the V&A, Natural History Museum, Science Museum, Royal Albert Hall, Exhibition Road, and Chelsea streets nearby.

  • Covent Garden and Soho in london gb3

    Covent Garden and Soho

    Covent Garden and Soho are theatre-and-nightlife dense, with Seven Dials, Neal's Yard, Chinatown, Carnaby Street, West End theatres, and late restaurants.

  • Camden and Regent's Canal in london gb4

    Camden and Regent's Canal

    Camden is market-led and music-linked, with Camden Lock, Regent's Canal, Roundhouse, street food, tattoo shops, and walks toward Primrose Hill.

  • Shoreditch and the City in london gb5

    Shoreditch and the City

    Shoreditch adds Brick Lane curry houses, street art, Spitalfields Market, bars, and tech offices beside the City's St Paul's, Bank, Leadenhall Market, and skyscrapers.

  • Notting Hill and Kensington in london gb6

    Notting Hill and Kensington

    Notting Hill has pastel terraces, Portobello Road market, Carnival history, bookshops, and quick access to Kensington Gardens and Holland Park.

Getting around

Transport for London runs the Tube, Elizabeth Line, Overground, DLR, buses, trams, river buses, and contactless/Oyster fares with daily caps. Use the Tube for cross-core trips, the Elizabeth Line for Heathrow and east-west speed, buses for short central hops, and National Rail terminals for day trips.

Full things to do in London, September 2027
2

Dublin

Dublin in September

Temp

63°F / 48°F

17°C / 9.1°C

Rain

10d

2.4in · 60mm

Light

12.4h

Sea

58.3°F

14.6°C

September is shoulder season, good for university-area walks and coastal trips after school-holiday demand eases.

City overview

Dublin sits on the River Liffey where Georgian squares, Viking-medieval lanes, literary pubs, Trinity College, the Liberties, Temple Bar, Smithfield, and St Stephen's Green make a compact city-center route. The city works best on foot, with DART coastal trains and Luas trams extending the map to Howth, Dun Laoghaire, and the docklands.

Food & drink

Dublin food is pub, market, and coast-fed: a full Irish breakfast plates sausage, bacon, eggs, pudding, beans, and tomato, Irish stew slow-cooks lamb or mutton with potatoes, seafood chowder uses Atlantic shellfish, and boxty turns potato into pancakes. The Brazen Head, Moore Street, George's Street Arcade, Temple Bar Food Market, Capel Street, and Howth seafood stops add soda bread, fish and chips, oysters, and Guinness pours.

Events & festivals

  • Sep 7

    Passenger

    Music · Rock.

    Source: Ticketmaster

  • Sep 11

    The Dire Straits Experience

    Music · Rock.

    Source: Ticketmaster

  • Sep 14

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 15 – Sep 26

    Dublin Fringe Festival 2027

    An annual multi-arts festival showcasing new theatre, dance, music, and visual arts performances across Dublin.

    Planning lead · dates set closer in · Source: festival research

  • Sep 15

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 16

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

Show all 21 events for September
  • Sep 17

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 18

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 20

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 21

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 22

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 23

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 24

    Culture Night Dublin 2027

    A city-wide event where museums, galleries, theatres, and cultural institutions open their doors late with free events and performances.

    Planning lead · dates set closer in · Source: festival research

  • Sep 24

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 24

    This Is the Kit

    Music · Blues.

    Source: Ticketmaster

  • Sep 25 – Sep 26

    Open House Dublin 2027

    A weekend event offering free access to many of Dublin’s architecturally significant buildings and guided tours.

    Planning lead · dates set closer in · Source: festival research

  • Sep 25

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 27

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 28

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 29

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

  • Sep 30

    Billy Elliot

    Arts & Theatre · Theatre.

    Source: Ticketmaster

Top sights

Ranked for September suitability using weather, setting, ratings, and review volume.

Map of Dublin with pinned top attractions (1 through 10)
  1. 1Phoenix Park
  2. 2Trinity College and Book of Kells
  3. 3Guinness Storehouse
  4. 4Dublin Castle
  5. 5Kilmainham Gaol
  6. 6National Museum of Ireland - Archaeology
  7. 7EPIC The Irish Emigration Museum
  8. 8Christ Church Cathedral
  9. 9St Patrick's Cathedral
  10. 10Temple Bar
  • Phoenix Park in Dublin1

    Phoenix Park

    4.7★outdoorOpen daily

    The 707-hectare park dates to the 1660s and holds Dublin Zoo, the Papal Cross, Wellington Monument, deer herds, and the Irish president's residence. It begins west of Heuston Station.

    Wikipedia
  • Trinity College and Book of Kells in Dublin2

    Trinity College and Book of Kells

    4.4★outdoorOpen daily

    Trinity College was founded in 1592, and the Old Library holds the Book of Kells, Long Room, manuscripts, and university history. The campus sits beside College Green and Grafton Street.

  • Guinness Storehouse in Dublin3

    Guinness Storehouse

    4.4★outdoorOpen daily

    The St James's Gate visitor experience opened in a former fermentation plant and explains brewing, advertising, cooperage, and Guinness history. The Gravity Bar gives rooftop views over the Liberties.

    Wikipedia
Show 7 more sights
  • 4Dublin Castle
  • 5Kilmainham Gaol
  • 6National Museum of Ireland - Archaeology
  • 7EPIC The Irish Emigration Museum
  • 8Christ Church Cathedral
  • 9St Patrick's Cathedral
  • 10Temple Bar

Neighborhoods

  • Temple Bar and College Green in dublin ie1

    Temple Bar and College Green

    Temple Bar and College Green are central and busy, with pubs, Trinity College, the Irish Whiskey Museum, cobbles, buskers, and river crossings.

  • St Stephen's Green and Grafton Street in dublin ie2

    St Stephen's Green and Grafton Street

    The southside shopping-and-park district has Grafton Street, Georgian doors, Iveagh Gardens, Little Museum of Dublin, and Merrion Square nearby.

  • The Liberties in dublin ie3

    The Liberties

    The Liberties is old and working-class, with Guinness, whiskey distilleries, St Patrick's Cathedral, Francis Street antiques, Thomas Street, and market streets.

  • Smithfield and Stoneybatter in dublin ie4

    Smithfield and Stoneybatter

    Smithfield and Stoneybatter mix the Jameson Bow St. distillery, Lighthouse Cinema, cafes, pubs, apartments, and quick access to Phoenix Park.

  • Docklands and Grand Canal Dock in dublin ie5

    Docklands and Grand Canal Dock

    The Docklands feel newer, with EPIC, Samuel Beckett Bridge, Bord Gáis Energy Theatre, tech offices, canals, and riverfront walks.

  • Rathmines and Portobello in dublin ie6

    Rathmines and Portobello

    Rathmines and Portobello are local and food-heavy, with canals, cinemas, pubs, brunch spots, and red-brick residential streets south of the core.

Getting around

Dublin Bus, Luas trams, DART coastal rail, commuter rail, and Leap cards cover the useful visitor network. Walk the center, use Luas for Heuston-Smithfield-Docklands, and use DART for Howth, Malahide, and Dun Laoghaire.

Full things to do in Dublin, September 2027
3

Edinburgh

Edinburgh in September

Temp

62°F / 47°F

16.6°C / 8.6°C

Rain

10d

2.2in · 55mm

Light

12.4h

Sea

57.4°F

14.1°C

September calms after the festivals, with good light for Leith, Stockbridge, and Arthur's Seat.

City overview

Edinburgh sits between Castle Rock, Arthur's Seat, and the Firth of Forth, with Old Town closes, New Town crescents, Leith waterfront, Stockbridge streets, Bruntsfield cafes, and Calton Hill viewpoints forming a compact but steep city. Its August festival season changes the city more completely than any single attraction.

Food & drink

Edinburgh food is Scottish staples with a strong pub map: haggis is minced offal, oats, and spice served with neeps and tatties, Cullen skink is smoked-haddock soup, and cranachan folds cream, oats, raspberries, honey, and whisky into dessert. Grassmarket pubs, Stockbridge Market, Leith's Shore restaurants, New Town whisky bars, and chip shops add Scotch pies, shortbread, drams, and fish suppers.

Events & festivals

  • Sep 4 – Sep 26

    Edinburgh International Festival 2027

    A world-renowned festival featuring opera, theatre, music, and dance performances by international artists across various venues in Edinburgh.

    Planning lead · dates set closer in · Source: festival research

  • Sep 5

    Edinburgh Psych Fest 2026

    A celebration of psychedelic music & arts in the heart of Edinburgh brought to you by the team behind Manchester Pysch Fest.

    Planning lead · projected date · Source: TripSapien festival dataset

  • Sep 9

    The Bohemians - a Night of Queen

    Music.

    Source: Ticketmaster

  • Sep 10 – Sep 19

    Edinburgh Jazz & Blues Festival 2027

    A vibrant festival featuring jazz and blues concerts, workshops, and club nights at venues throughout Edinburgh.

    Planning lead · dates set closer in · Source: festival research

  • Sep 12

    Passenger

    Music · Rock.

    Source: Ticketmaster

  • Sep 18

    Tom Davis: Spudgun

    Arts & Theatre · Comedy.

    Source: Ticketmaster

Show all 9 events for September
  • Sep 18

    Onóir

    Music · Folk.

    Source: Ticketmaster

  • Sep 18 – Sep 19

    Edinburgh Doors Open Days 2027

    Part of the European Heritage Days, this event offers free access to many historic and architecturally significant buildings in Edinburgh, some normally closed to the public.

    Planning lead · dates set closer in · Source: festival research

  • Sep 24 – Sep 26

    Edinburgh Festival Fringe 2027 (Final Weekend)

    The world’s largest arts festival featuring thousands of performances in theatre, comedy, dance, and music across the city.

    Planning lead · dates set closer in · Source: festival research

Top sights

Ranked for September suitability using weather, setting, ratings, and review volume.

Map of Edinburgh with pinned top attractions (1 through 10)
  1. 1Arthur's Seat and Holyrood Park
  2. 2Calton Hill
  3. 3Royal Mile
  4. 4Princes Street Gardens and Scott Monument
  5. 5Edinburgh Castle
  6. 6Palace of Holyroodhouse
  7. 7National Museum of Scotland
  8. 8Royal Yacht Britannia
  9. 9Scottish National Gallery
  10. 10Camera Obscura and World of Illusions
  • Arthur's Seat and Holyrood Park in Edinburgh1

    Arthur's Seat and Holyrood Park

    4.8★outdoor

    The extinct volcano rises 251m above the city, with paths from Holyrood, Duddingston, and the Salisbury Crags. Views reach the Castle, Firth of Forth, and Pentland Hills.

  • Calton Hill in Edinburgh2

    Calton Hill

    4.8★outdoor

    The hill east of Princes Street has the National Monument, Nelson Monument, Dugald Stewart Monument, and one of the classic skyline views toward the Castle and Arthur's Seat. It is a short climb from Waterloo Place.

    Wikipedia
  • Royal Mile in Edinburgh3

    Royal Mile

    4.7★outdoor

    The Old Town spine runs from Edinburgh Castle to Holyrood Palace through Lawnmarket, High Street, Canongate, closes, churches, pubs, and souvenir shops. It is steep, crowded, and central to most first-time walks.

    Wikipedia
Show 7 more sights
  • 4Princes Street Gardens and Scott Monument
  • 5Edinburgh Castle
  • 6Palace of Holyroodhouse
  • 7National Museum of Scotland
  • 8Royal Yacht Britannia
  • 9Scottish National Gallery
  • 10Camera Obscura and World of Illusions

Neighborhoods

Getting around

Lothian Buses, Edinburgh Trams, airport tram service, and contactless day caps cover most visitor moves. Walk the Old Town-New Town core, use trams for airport-Leith links, and expect steep climbs between Waverley, the Royal Mile, and the Castle.

Full things to do in Edinburgh, September 2027

Planning the British Isles route?

Add your dates and we'll pace all 3 cities — every place checked for closures, limited hours, and booking needs in September.

Weather by month for the British Isles trip

In September, climate averages for London, Dublin and Edinburgh show daytime highs from 17°C / 63°F to 20°C / 68°F, with nights down to about 9°C / 48°F in the coolest of those cities. The rainiest of those cities averages about 10 rainy days. Based on climate averages for London, Dublin and Edinburgh, September is a comfortable month by weather.

The most comfortable months for this route are August, July and June, based on average daytime temperatures and rainfall in London, Dublin and Edinburgh. September 2027 is a comfortable month.

Comfort by month — pick one to open that month's plan.

IdealGoodLowerSeptember

Common questions about the British Isles trip

When is the best time to do the British Isles trip?
The most comfortable months across London, Dublin and Edinburgh are August, July and June, based on average daytime temperatures and rainfall for those cities. September is a comfortable month by weather — see the city climate sections below for the averages in September 2027.
How many days do you need for the British Isles trip?
A comfortable British Isles trip runs about 7–9 days, allowing roughly London 3, Dublin 2, Edinburgh 2 nights plus travel between stops. Add a day if you want a slower pace or extra day trips.
What's the route for the British Isles trip?
The classic order is London, Dublin & Edinburgh. The detailed month sections below cover London, Dublin and Edinburgh.

Ready to plan the British Isles trip?

Turn this route into a day-by-day plan for September 2027, every stop checked for closures and booking needs on your exact dates.

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