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

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

  • 3,010 hours of sunshine a year – 1.8 times as much as London. Warmest is August at 28 °C by day.
  • Best time to visit: June, July, August, September

Sunshine and temperature in Santorini month by month

  • January: 4.3 h Sun/day (134 h), Daytime high 17 °C, Night 10 °C, Rain 96 mm, Holiday score 31
  • February: 4.8 h Sun/day (137 h), Daytime high 17 °C, Night 10 °C, Rain 81 mm, Holiday score 36
  • March: 7.1 h Sun/day (219 h), Daytime high 19 °C, Night 11 °C, Rain 44 mm, Holiday score 54
  • April: 8.8 h Sun/day (264 h), Daytime high 20 °C, Night 13 °C, Rain 26 mm, Holiday score 68
  • May: 10.6 h Sun/day (328 h), Daytime high 23 °C, Night 16 °C, Rain 19 mm, Holiday score 88
  • June: 12.4 h Sun/day (373 h), Daytime high 27 °C, Night 20 °C, Rain 5 mm, Holiday score 100
  • July: 12.5 h Sun/day (387 h), Daytime high 28 °C, Night 23 °C, Rain 2 mm, Holiday score 100
  • August: 11.5 h Sun/day (356 h), Daytime high 28 °C, Night 23 °C, Rain 2 mm, Holiday score 100
  • September: 9.8 h Sun/day (293 h), Daytime high 27 °C, Night 21 °C, Rain 18 mm, Holiday score 93
  • October: 7.5 h Sun/day (232 h), Daytime high 25 °C, Night 18 °C, Rain 44 mm, Holiday score 80
  • November: 5.4 h Sun/day (163 h), Daytime high 22 °C, Night 14 °C, Rain 64 mm, Holiday score 58
  • December: 4.0 h Sun/day (124 h), Daytime high 19 °C, Night 11 °C, Rain 87 mm, Holiday score 38
  • Temperature: NASA POWER model value (grid, ±2–3 °C) · 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 Santorini? By sunshine, warmth and rain the best months are June, July, August, September. Sunniest is July with 387 hours of sunshine, warmest August at 28 °C.
  • How many hours of sunshine does Santorini get a year? About 3,010 hours – 1.8 times as many as London (1,675 hours).
  • When does it rain most in Santorini? In January, with 96 mm on average. The driest month is July.
  • How warm is Santorini in January and July? In January the average daytime high is 17 °C, in July 28 °C.