Current sea water temperature:
+66.4°F
| Minimum sea water temperature in December: | 68.5°F |
| Maximum sea water temperature in December: | 61.9°F |
| Average sea water temperature in December: | 64.8°F |
| more information | |
14 days
forecast
forecast
| Santorini |
monthly
weather
weather
| Santorini |
Sea water temperature for the last 10 days:
| December 17 | 66.4°F | December 12 | 66.7°F |
| December 16 | 66.6°F | December 11 | 66.9°F |
| December 15 | 66.7°F | December 10 | 67.5°F |
| December 14 | 66.7°F | December 9 | 67.5°F |
| December 13 | 66.7°F | December 8 | 68.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Santorini?
Based on the data about daily sea water temperature for the last three years the warmest sea in Santorini was noticed in August, September and July.
Monthly Sea Temperatures in Santorini, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 79.2°F and 76.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 75.9°F. The highest and lowest sea temperatures during the month were 77.4°F and 73.9°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.8°F. The highest and lowest sea temperatures during the month were 79.5°F and 71.6°F.
current
weather
weather
| Santorini |
weather in
December
December
| Santorini |
Best time for vacation in Santorini
Santorini on a weather map
Places in Greece:
Name
°F
24 Hours Forecast
Santorini
Local time: 07:34
December 18, thursday
0900
61°F
S
7 mph
7 mph
1200
61°F
SE
11 mph
11 mph
1500
61°F
SE
9 mph
9 mph
1800
61°F
SE
7 mph
7 mph
2100
61°F
SE
7 mph
7 mph
December 19, friday
0000
61°F
SE
7 mph
7 mph
0300
61°F
S
7 mph
7 mph
0600
61°F
SE
7 mph
7 mph
