Best time to visit Thessaloniki
The best months to visit Thessaloniki are May, September and October, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
May, September and October score best for Thessaloniki weather:
- May24° / 15°CMay is warm but still showery, good for Aristotelous Square evenings and museum backups around storms.
- September26° / 17°CSeptember is warm and busy around the Thessaloniki International Fair, so book central hotels early.
- October20° / 12°COctober is comfortable for Ano Poli, archaeological sites, and food walks before darker winter evenings.
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By TripSapien Research · Updated May 20, 2026
Thessaloniki weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight |
|---|---|---|---|---|---|
| January | 8° | 1° | 53 | 6 | 9h |
| February | 11° | 2° | 50 | 6 | 10h |
| March | 14° | 5° | 60 | 7 | 12h |
| April | 19° | 10° | 59 | 7 | 13h |
| MayBest weather | 24° | 15° | 71 | 7 | 14h |
| June | 29° | 19° | 52 | 6 | 15h |
| July | 31° | 22° | 46 | 5 | 15h |
| August | 31° | 22° | 46 | 5 | 14h |
| SeptemberBest weather | 26° | 17° | 53 | 5 | 12h |
| OctoberBest weather | 20° | 12° | 61 | 5 | 11h |
| November | 15° | 8° | 63 | 6 | 10h |
| December | 10° | 2° | 73 | 6 | 9h |
Temperatures in °C. Long-term monthly averages.
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Thessaloniki month by month
January
Thessaloniki in January: 8.3°C high, 0.7°C low, 53mm rain over 6 days, 9.4h daylight. Mild and dry — shoulder-season sweet spot.
February
Thessaloniki in February: 10.5°C high, 2.1°C low, 50mm rain over 6 days, 10.4h daylight. Mild and dry — shoulder-season sweet spot.
March
Thessaloniki in March: 14.3°C high, 5.3°C low, 60mm rain over 7 days, 11.7h daylight. Mild and dry — shoulder-season sweet spot.
April
Thessaloniki in April: 18.6°C high, 9.6°C low, 59mm rain over 7 days, 13.1h daylight. Mild and dry — shoulder-season sweet spot.
MayBest weather
Thessaloniki in May: 23.7°C high, 14.8°C low, 71mm rain over 7 days, 14.3h daylight. Mild and dry — shoulder-season sweet spot.
June
Thessaloniki in June: 28.5°C high, 19.3°C low, 52mm rain over 6 days, 14.9h daylight. Hot and dry — outdoor friendly, hydrate.
World Naked Bike Ride (June)
July
Thessaloniki in July: 31.3°C high, 21.8°C low, 46mm rain over 5 days, 14.6h daylight. Hot and dry — outdoor friendly, hydrate.
August
Thessaloniki in August: 31.2°C high, 21.9°C low, 46mm rain over 5 days, 13.6h daylight. Hot and dry — outdoor friendly, hydrate.
SeptemberBest weather
Thessaloniki in September: 25.9°C high, 17.2°C low, 53mm rain over 5 days, 12.3h daylight. Mild and dry — shoulder-season sweet spot.
Thessaloniki International Fair (September)
OctoberBest weather
Thessaloniki in October: 20.1°C high, 12.2°C low, 61mm rain over 5 days, 10.9h daylight. Mild and dry — shoulder-season sweet spot.
November
Thessaloniki in November: 14.8°C high, 7.5°C low, 63mm rain over 6 days, 9.7h daylight. Mild and dry — shoulder-season sweet spot.
Thessaloniki Film Festival (November)
December
Thessaloniki in December: 9.5°C high, 2.3°C low, 73mm rain over 6 days, 9.1h daylight. Mild and dry — shoulder-season sweet spot.
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