Weather comparison

Santorini or Mykonos? The weather compared

By day, both are about equally warm over the year. The sea is 0.8 °C warmer at Santorini. Best time: Santorini June – September, Mykonos June – September.

Holiday weather score by month

Santorini
Mean of 2 destinations
1. 14
2. 20
3. 28
4. 38
5. 64
6. 93
7. 99
8. 100
9. 100
10. 73
11. 38
12. 18
Mykonos
1. 12
2. 20
3. 28
4. 38
5. 62
6. 91
7. 97
8. 100
9. 98
10. 71
11. 32
12. 15

Month by month

Holiday weather score, daytime high and sea temperature. Where one is clearly ahead, its month is highlighted.

Month	Santorini	Mykonos
JanuaryJan	1415° / 17°	1215° / 16°
FebruaryFeb	2015° / 16°	2015° / 16°
MarchMar	2817° / 16°	2816° / 16°
AprilApr	3819° / 17°	3819° / 17°
MayMay	6422° / 19°	6222° / 18°
JuneJun	9326° / 22°	9126° / 21°
JulyJul	9928° / 24°	9727° / 23°
AugustAug	10028° / 25°	10028° / 24°
SeptemberSep	10026° / 24°	9826° / 23°
OctoberOct	7323° / 22°	7123° / 21°
NovemberNov	3819° / 20°	3219° / 19°
DecemberDec	1816° / 18°	1516° / 17°

Santorini or Mykonos: quick answers

Which is warmer, Santorini or Mykonos?

Both are about equally warm by day: 21.2 °C and 21.0 °C on average over the year.

Where is the sea warmer, Santorini or Mykonos?

At Santorini, by 0.8 °C on average over the year.

Santorini or Mykonos in winter?

From December to February, both have about the same holiday weather (17 and 16 points).

Santorini or Mykonos in summer?

From June to August, both have about the same holiday weather (97 and 96 points).

More about both

Santorini Mykonos

More comparisons

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), 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). Sources & licences