Santorini, Greece Weather
Santorini hourly forecast: next 24 hours
Today's high of 73°F (23°C) is about 7°F (4°C) below the typical September high of 80°F (27°C).
Current conditions in detail
Santorini weather tomorrow (Thursday, September 17)
Tomorrow in Santorini looks sunny, with a high of 73° and an overnight low of 72°. Rain is unlikely (5% chance). Winds top out near 20 mph, and the UV index reaches 7 (high).
Santorini 14-day forecast
About the weather in Santorini
Santorini works on a dry budget: 10.9 inches (278 mm) of precipitation a year, spread over roughly 51 days. Temperature does the varying instead, from 58°F (14°C) on a typical January afternoon to 85°F (29°C) in July, with nights 4°C below the day.
Santorini weather: quick facts
- Hottest month: July - highs near 85°F (29°C)
- Coldest month: January - highs near 58°F (14°C)
- Decade extremes (2015-2024): 97°F (36°C) high · 37°F (3°C) low
- Wettest month: January (11 rainy days) · Sunniest: June (13.8 h sun/day)
- Climate type: semi-arid
- Annual swing: 14°C between the average warmest and coolest month · day to night: 4°C
- Average humidity: 67%
Temperatures through the year
January is the wettest month at 2.2 inches (57 mm) over 11 days; July is the driest. January sits at the other end of the year: 58°F (14°C) by day, 52°F (11°C) at night. July is the warm end of the year, averaging 85°F (29°C) by day and 76°F (24°C) overnight. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 97°F (36°C) and the lowest daily minimum 37°F (3°C). Days and nights are about 4°C apart on average - narrower than almost anywhere else we cover.
Rain, sun and snow
7 months average under 20 mm of rain, the longest unbroken stretch running April through October. June is the brightest month at 13.8 hours of sun a day, against an annual average of 10.9 - sunnier than 93% of the 3496 cities in our dataset.
Season by season
Spring (March through May)
Spring in Santorini runs cool rather than cold, with daytime highs averaging 67°F (20°C) and nights around 59°F (15°C); rain comes on about 13 days over the three months. Daylight is generous - around 11.4 hours of sun a day.
Summer (June through August)
Through summer, Santorini is hot: 83°F (28°C) by day, 74°F (24°C) after dark, and precipitation is sparse, near 8 mm (0.3 in) for the season. Daylight is generous - around 13.4 hours of sun a day.
Fall (September through November)
Through fall, Santorini is mild and warm: 74°F (23°C) by day, 67°F (19°C) after dark, and precipitation is sparse, near 1.7 inches (42 mm) for the season. Daylight is generous - around 10.4 hours of sun a day.
Winter (December through February)
Through winter, Santorini is crisp but comfortable: 60°F (15°C) by day, 53°F (12°C) after dark, and expect showers on roughly 27 days across the season.
Average temperatures in Santorini by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 52° | 11 | 2.2 in | 7.9 h/day | 67% |
| February | 60° | 53° | 8 | 2.1 in | 9.1 h/day | 69% |
| March | 61° | 55° | 7 | 1.9 in | 10.1 h/day | 67% |
| April | 67° | 58° | 3 | 0.5 in | 11.5 h/day | 67% |
| May | 73° | 64° | 3 | 0.4 in | 12.6 h/day | 68% |
| June | 81° | 71° | 1 | 0.2 in | 13.8 h/day | 66% |
| July | 85° | 76° | 0 | 0.0 in | 13.5 h/day | 63% |
| August | 84° | 76° | 1 | 0.1 in | 12.9 h/day | 66% |
| September | 80° | 73° | 1 | 0.2 in | 11.8 h/day | 67% |
| October | 74° | 67° | 2 | 0.5 in | 10.1 h/day | 69% |
| November | 68° | 61° | 4 | 0.9 in | 9.2 h/day | 70% |
| December | 61° | 55° | 9 | 1.8 in | 8.1 h/day | 69% |