World Resorts Greece Athens Weather

Athens sea water temperature

Current sea water temperature:
+64.2°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 30 64.2°F December 25 64.6°F
December 29 64.6°F December 24 65.1°F
December 28 64.6°F December 23 65.3°F
December 27 64.8°F December 22 65.3°F
December 26 64.2°F December 21 64.6°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
SE 4 mph
Feels like: +52°F
Precip.: 100%
Places in Greece:
Name
°F
+52°F
+48°F
+57°F
+59°F
+52°F
+54°F
+50°F
+55°F
+39°F
+63°F
+50°F
+45°F
+50°F
+54°F
24 Hours Forecast
Athens
Local time: 00:51
December 31, wednesday
0300
48°F
S
16 mph
0600
46°F
S
17 mph
0900
45°F
S
9 mph
1200
43°F
S
16 mph
1500
43°F
S
14 mph
1800
41°F
S
9 mph
2100
39°F
S
6 mph
January 01, thursday
0000
39°F
S
7 mph

Best place for vacation:

Units of measurement: °C / °F