World Resorts Greece Athens Weather

Athens sea water temperature

Current sea water temperature:
+66.4°F
Minimum sea water temperature in December: 69.4°F
Maximum sea water temperature in December: 59.4°F
Average sea water temperature in December: 64.3°F

Sea water temperature for the last 10 days:

December 14 66.4°F December 9 66.9°F
December 13 66.4°F December 8 66.6°F
December 12 66.6°F December 7 66.9°F
December 11 66.7°F December 6 67.3°F
December 10 66.4°F December 5 66.7°F

When is the warmest sea in Athens?

Based on the data about daily sea water temperature for the last three years the warmest sea in Athens was noticed in August, July and September.

Monthly Sea Temperatures in Athens, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 81.1°F and 78.3°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 78.6°F. The highest and lowest sea temperatures during the month were 83.3°F and 75.2°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 78.3°F. The highest and lowest sea temperatures during the month were 79.7°F and 75.6°F.

Best time for vacation in Athens

Sunniest months:
July 30 days
August 29 days
June 26 days
Warmest months:
July 91.7 °F
August 90.6 °F
June 85.9 °F
Warmest sea temp:
August 80.2 °F
July 78.9 °F
September 78.4 °F
Coldest months:
January 54.4 °F
February 56.5 °F
December 57.6 °F
Rainiest months:
January 3 days
February 3 days
December 3 days
Windiest months:
August 10.3 mph
July 9.3 mph
February 9.0 mph

Athens on a weather map

Athens
+52°F
S 7 mph
Feels like: +48°F
Precip.: 0%
Places in Greece:
Name
°F
+52°F
+54°F
+59°F
+57°F
+55°F
+54°F
+55°F
+45°F
+61°F
+48°F
+54°F
+54°F
+57°F
+57°F
24 Hours Forecast
Athens
Local time: 08:44
December 15, monday
0900
52°F
S
7 mph
1200
57°F
S
7 mph
1500
59°F
S
9 mph
1800
54°F
SW
7 mph
2100
50°F
S
7 mph
December 16, tuesday
0000
48°F
S
7 mph
0300
46°F
S
7 mph
0600
46°F
S
7 mph

Best place for vacation:

Units of measurement: °C / °F