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Athens sea water temperature

Current sea water temperature:
+62.8°F
Minimum sea water temperature in January: 63.9°F
Maximum sea water temperature in January: 57.2°F
Average sea water temperature in January: 60.4°F

Sea water temperature for the last 10 days:

January 11 62.8°F January 6 62.6°F
January 10 62.4°F January 5 63.3°F
January 9 62.6°F January 4 63.1°F
January 8 62.6°F January 3 63.5°F
January 7 62.6°F January 2 63.7°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
+39°F
S 12 mph
Feels like: +32°F
Precip.: 81%
Places in Greece:
Name
°F
+39°F
+36°F
+52°F
+48°F
+50°F
+43°F
+43°F
+46°F
+48°F
+28°F
+54°F
+34°F
+34°F
+50°F
24 Hours Forecast
Athens
Local time: 05:08
January 12, monday
0600
39°F
S
12 mph
0900
39°F
S
16 mph
1200
41°F
S
18 mph
1500
43°F
S
21 mph
1800
39°F
S
11 mph
2100
37°F
S
7 mph
January 13, tuesday
0000
36°F
S
6 mph
0300
36°F
S
5 mph

Best place for vacation:

Units of measurement: °C / °F