Mild in Mar
20°C average high
avg high · 10° at night
25°C+ on 1 in 10 days
Greece
Santorini weather in March
Is it warm? Not really. March in Santorini is cool: afternoons average 17°C and nights 12°C. Most days (80%) peak between 15°C and 18°C.
Cool · average high
17°C
25°C or more on almost no days; 20°C or more on almost no days.
- Average low12°overnight
- Sea17°average, 2022–2025
- Rainy days645 mm in the month
- SkySome cloud42% cloud · 36% clear days
How warm it really gets
Every March afternoon from 2011–2025: 465 days. Most (80%) peaked between 15° and 18°.
March, year by year
The average March high in each year. The warmest, 2018, averaged 18°C; the coolest, 2022, 15°C.
Compared with home
Average March highs. Expect rain on about 6 days (45 mm in a typical month).
- Santorini17°
- London12°
- Cork11°
- Dublin11°
- Glasgow10°
- Belfast10°
- Manchester10°
Warmer in March, not much further
Flying times are estimates from Dublin; Santorini is about 4h 15m.
Cool in Mar
19°C average high
avg high · 11° at night
25°C+ on 1 in 10 days
Cool in Mar
19°C average high
avg high · 11° at night
25°C+ on rarely
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