Measurements:
°C
°F
Santorini
58°F
NE 15 mph
Feels like: 54°F
Precip: 74%
World Resorts Greece Santorini Weather

Santorini Sea Water Temperature

Current Sea Water Temperature:
+64.4°F
Maximum Sea Water Temperature in February: 66.2°F
Minimum Sea Water Temperature in February: 61.4°F
Average water temperature in February: 63.5°F

Sea Water Temperature for the Last 10 Days:

February 21 64.4°F February 16 64.4°F
February 20 64.6°F February 15 65.2°F
February 19 64.6°F February 14 65.4°F
February 18 65.0°F February 13 65.4°F
February 17 65.0°F February 12 65.4°F

When is the Warmest Sea for Santorini?

According to our data for the last three years for Santorini the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Santorini was 81.0°F. The maximum and minimum values were 79.0°F and 82.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Santorini was 78.7°F. The maximum and minimum values were 76.6°F and 80.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Santorini was 78.7°F. The maximum and minimum values were 74.0°F and 82.8°F respectively.

Best Time to Visit Santorini
The most sunny months:
July 31 days
August 30 days
June 29 days
The most warm months:
August 85.2 °F
July 84.2 °F
September 81.3 °F
Warmest sea temperature:
August 80.4 °F
September 79.3 °F
July 78.7 °F
The most cold months:
January 59.1 °F
February 59.4 °F
March 60.9 °F
The most rainy months:
January 4 days
December 3 days
February 3 days
The most windy months:
January 17 mph
February 17 mph
March 16 mph

Santorini on the Weather Map

Greece Resorts:
NAME
Athenes +54
Athos +54
Chalkidiki +52
Chania +58
Corfu +54
Crete +44
Heraklion +54
Lefkada +54
Mykonos +58
Paralia Katerini +50
Rhodes +56
Santorini +58
Thasos +50
Thessaloniki +48
Zakynthos +50
24 Hours Weather Forecast
Santorini
Local time: 10:22
21 feb, saturday
1200 60°F
E
24 mph
1500 60°F
E
22 mph
1800 60°F
E
14 mph
2100 60°F
SE
9 mph
22 feb, sunday
0000 60°F
SE
2 mph
0300 60°F
SE
7 mph
0600 58°F
SW
11 mph
0900 58°F
S
18 mph