Fira, Santorini weather in October
Temperature, sea and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Good
Best time to visit: July – September
What is the weather like in Fira, Santorini in October?
In October, Fira, Santorini is mild: daytime highs average 20 °C, and nights cool down to about 18 °C. The sea averages 22.2 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain is rare: about 3 days bring 20 mm in total. It is often windy, with gusts of around 31 km/h. All in all, October is a good month for a holiday in Fira, Santorini.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 92 | 61 | 36 |
| Day | 24° | 20° | 17° |
| Night | 21° | 18° | 15° |
| Sea | 24° | 22° | 20° |
| Sun | 9 h | 7 h | 6 h |
| Rain days | 1 | 3 | 6 |
More details for October
- Daylight
- 11 h 19 min07:24 – 18:44
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 6 daysdew point 18 °C or more
- Wind
- 31 km/haverage daily peak
- Cloud cover
- 28 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 35 %23 %
- Seaweight 25 %74 %
- Sunshineweight 20 %72 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in October
- Swimwear
- Sunscreen
- Windproof jacket
Fira, Santorini in October: quick answers
Is Fira, Santorini hot in October?
No. In October, Fira, Santorini is mild: daytime highs average 20 °C and nights drop to about 18 °C.
Can you swim in Fira, Santorini in October?
Yes. In October the sea averages 22.2 °C – refreshing for a swim.
Does it rain much in Fira, Santorini in October?
Rain is rare: about 3 days bring 20 mm in total.
Fira, Santorini month by month
The whole year in Fira, SantoriniAll destinations: GreeceWhere to go in OctoberSea temperature in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)