World Resorts Greece Santorini Weather

Santorini sea water temperature

Current sea water temperature:
+75.0°F
Minimum sea water temperature in July: 80.6°F
Maximum sea water temperature in July: 71.6°F
Average sea water temperature in July: 75.8°F

Sea water temperature for the last 10 days:

July 15 75.0°F July 10 75.4°F
July 14 75.4°F July 9 74.5°F
July 13 75.2°F July 8 74.3°F
July 12 75.0°F July 7 74.3°F
July 11 75.4°F July 6 75.4°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 75.4°F. The highest and lowest sea temperatures during the month were 77.0°F and 74.3°F.

Best time for vacation in Santorini

Sunniest months:
July 31 days
August 30 days
June 29 days
Warmest months:
August 81.7 °F
July 80.8 °F
September 78.2 °F
Warmest sea temp:
August 77.4 °F
September 76.4 °F
July 75.8 °F
Coldest months:
January 58.2 °F
February 58.5 °F
March 59.7 °F
Rainiest months:
January 4 days
December 3 days
February 3 days
Windiest months:
January 17.7 mph
February 17.7 mph
March 16.7 mph

Santorini on a weather map

Santorini
+77°F
S 20 mph
Feels like: +79°F
Precip.: 6%
Places in Greece:
Name
°F
+91°F
+84°F
+82°F
+82°F
+82°F
+77°F
+90°F
+91°F
+82°F
+81°F
+81°F
+86°F
+84°F
+81°F
24 Hours Forecast
Santorini
Local time: 13:38
July 15, wednesday
1500
77°F
S
20 mph
1800
77°F
SE
25 mph
2100
77°F
S
25 mph
July 16, thursday
0000
77°F
S
21 mph
0300
77°F
SE
23 mph
0600
77°F
S
23 mph
0900
75°F
S
24 mph
1200
77°F
S
22 mph
Units of measurement: °C / °F