TripSapienLog in

Best time to visit Porto

The best months to visit Porto are July, August and September, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.

July, August and September score best for Porto weather:

  • July24° / 15°CJuly is dry and warm, with São João aftermath, river cruises, and beach trips working well.
  • August25° / 15°CAugust is warm and mostly dry, though Atlantic breezes keep Foz cooler than inland Douro towns.
  • September24° / 14°CSeptember stays pleasant, with harvest season making Douro Valley trains especially attractive.

Get a Porto plan you can trust — matched to the month you pick, with every place checked for hours, closures, and booking needs.

  • Free. No account.
  • Ready in about 30 seconds.
TripSapien checks London for Sep 13–20 and flags a closure, booking need, and limited opening day.
TripSapien flags closures, booking needs, and limited opening days — before you go.
Cheap flights from Going.com

30% off a Going membership after you build your plan.

Colorful Ribeira Facades and Hillside Views, Porto, Portugal in Porto, Portugal
Photo by Dale Cruse - 10M views from San Francisco, CA, USA · CC BY 4.0

By TripSapien Research · Updated May 20, 2026

Porto weather by month

MonthHighLowRain (mm)Rainy daysDaylightSea
January14°6°160139h13°
February15°6°1401210h14°
March17°8°901012h14°
April18°9°1151113h16°
May20°12°1001014h18°
June23°14°45615h19°
JulyBest weather24°15°20315h19°
AugustBest weather25°15°25314h18°
SeptemberBest weather24°14°70612h17°
October21°12°1401111h17°
November17°9°1601210h16°
December15°7°195139h14°

Temperatures in °C. Long-term monthly averages.

Know your Porto month?

Pick your dates and we'll build the trip around them — every place checked for closures and booking needs.

Porto month by month

January

Porto in January: 14.1°C high, 6.3°C low, 160mm rain over 13 days, 9.3h daylight. Mild but rainy — flexible plans pay off.

February

Porto in February: 15.1°C high, 6.4°C low, 140mm rain over 12 days, 10.4h daylight. Mild but rainy — flexible plans pay off.

March

Porto in March: 17.1°C high, 8.1°C low, 90mm rain over 10 days, 11.7h daylight. Mild and dry — shoulder-season sweet spot.

April

Porto in April: 18.1°C high, 9.4°C low, 115mm rain over 11 days, 13.1h daylight. Mild but rainy — flexible plans pay off.

May

Porto in May: 20.4°C high, 11.7°C low, 100mm rain over 10 days, 14.3h daylight. Mild but rainy — flexible plans pay off.

June

Porto in June: 22.6°C high, 13.8°C low, 45mm rain over 6 days, 14.9h daylight. Mild and dry — shoulder-season sweet spot.

JulyBest weather

Porto in July: 24.2°C high, 14.9°C low, 20mm rain over 3 days, 14.7h daylight. Mild and dry — shoulder-season sweet spot.

AugustBest weather

Porto in August: 24.8°C high, 15°C low, 25mm rain over 3 days, 13.7h daylight. Mild and dry — shoulder-season sweet spot.

SeptemberBest weather

Porto in September: 23.5°C high, 14°C low, 70mm rain over 6 days, 12.3h daylight. Mild and dry — shoulder-season sweet spot.

October

Porto in October: 20.8°C high, 12.2°C low, 140mm rain over 11 days, 10.9h daylight. Mild but rainy — flexible plans pay off.

November

Porto in November: 16.9°C high, 9°C low, 160mm rain over 12 days, 9.6h daylight. Mild but rainy — flexible plans pay off.

December

Porto in December: 14.8°C high, 7.3°C low, 195mm rain over 13 days, 9h daylight. Mild but rainy — flexible plans pay off.

Ready to plan Porto?

Pick one of the best months and turn it into a full Porto plan — every place checked for closures, limited hours, and booking needs on your dates.