Warm in Oct
26°C average high
avg high · 16° at night
25°C+ on 7 in 10 days
Greece
Santorini weather in October
Is it warm? Mostly. October in Santorini is mild: afternoons average 23°C and nights 18°C. Most days (80%) peak between 21°C and 26°C.
Mild · average high
23°C
25°C or more on about two in ten days; 20°C or more on almost every day.
- Average low18°overnight
- Sea23°average, 2022–2025
- Rainy days216 mm in the month
- SkySome cloud26% cloud · 67% clear days
How warm it really gets
Every October afternoon from 2011–2025: 465 days. Most (80%) peaked between 21° and 26°.
October, year by year
The average October high in each year. The warmest, 2020, averaged 25°C; the coolest, 2011, 22°C.
Compared with home
Average October highs. Expect rain on about 2 days (16 mm in a typical month).
- Santorini23°
- London16°
- Cork15°
- Dublin15°
- Manchester14°
- Belfast14°
- Glasgow14°
Warmer in October, not much further
Flying times are estimates from Dublin; Santorini is about 4h 15m.
Warm in Oct
25°C average high
avg high · 16° at night
25°C+ on 5 in 10 days
Warm in Oct
25°C average high
avg high · 18° at night
25°C+ on 5 in 10 days
Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Santorini airport. Sea: Copernicus ERA5, 2022–2025. Rainy days = days with 1 mm of rain or more, as weather stations count them. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology