Athens Climate: Sunshine Hours, Temperature & Best Time to Visit

Athens climate month by month: sunshine hours, temperature, rain and day length from weather station data 1991–2020. Best time to visit: May, June, September. Sunniest month: July.

2,906 hours of sunshine a year – 1.7 times as much as London. Warmest is July at 34 °C by day.
Best time to visit: May, June, September

Sunshine and temperature in Athens month by month

January: 4.3 h Sun/day (132 h), Daytime high 13 °C, Night 7 °C, Rain 66 mm, Holiday score 26
February: 5.0 h Sun/day (142 h), Daytime high 14 °C, Night 7 °C, Rain 58 mm, Holiday score 30
March: 6.8 h Sun/day (211 h), Daytime high 17 °C, Night 9 °C, Rain 53 mm, Holiday score 46
April: 8.6 h Sun/day (257 h), Daytime high 21 °C, Night 12 °C, Rain 30 mm, Holiday score 72
May: 10.1 h Sun/day (314 h), Daytime high 27 °C, Night 17 °C, Rain 21 mm, Holiday score 94
June: 12.0 h Sun/day (359 h), Daytime high 32 °C, Night 21 °C, Rain 20 mm, Holiday score 91
July: 12.6 h Sun/day (391 h), Daytime high 34 °C, Night 24 °C, Rain 11 mm, Holiday score 81
August: 11.5 h Sun/day (358 h), Daytime high 34 °C, Night 24 °C, Rain 8 mm, Holiday score 82
September: 9.0 h Sun/day (271 h), Daytime high 30 °C, Night 20 °C, Rain 29 mm, Holiday score 89
October: 6.8 h Sun/day (211 h), Daytime high 24 °C, Night 16 °C, Rain 49 mm, Holiday score 76
November: 4.8 h Sun/day (143 h), Daytime high 19 °C, Night 12 °C, Rain 69 mm, Holiday score 44
December: 3.8 h Sun/day (117 h), Daytime high 15 °C, Night 9 °C, Rain 86 mm, Holiday score 22

Temperature: station Athen (Observat.) (1 km) · Sunshine: estimated from NASA satellite data (±15 %) · Rain: NASA POWER model value (grid, ±2–3 °C). Averages 1991–2020, source: Deutscher Wetterdienst (CLIMAT station data, CC BY 4.0) and NASA POWER; single years differ.

Questions

When is the best time to visit Athens? By sunshine, warmth and rain the best months are May, June, September. Sunniest is July with 391 hours of sunshine, warmest July at 34 °C.
How many hours of sunshine does Athens get a year? About 2,906 hours – 1.7 times as many as London (1,675 hours).
When does it rain most in Athens? In December, with 86 mm on average. The driest month is August.
How warm is Athens in January and July? In January the average daytime high is 13 °C, in July 34 °C.