Measurements:
°C
°F
Eretria
84°F
SE 8 mph
Feels like: 86°F
Precip: 2%
World Resorts Greece Eretria Weather

Eretria Sea Water Temperature

Current Sea Water Temperature:
+83.6°F
Maximum Sea Water Temperature in August: 87.0°F
Minimum Sea Water Temperature in August: 79.8°F
Average water temperature in August: 83.1°F

Sea Water Temperature for the Last 10 Days:

August 24 83.6°F August 19 81.6°F
August 23 83.4°F August 18 81.2°F
August 22 82.8°F August 17 81.4°F
August 21 83.2°F August 16 81.8°F
August 20 82.2°F August 15 82.2°F

When is the Warmest Sea for Eretria?

According to our data for the last three years for Eretria the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Eretria was 82.7°F. The maximum and minimum values were 81.2°F and 83.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Eretria was 82.6°F. The maximum and minimum values were 79.0°F and 84.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Eretria was 80.3°F. The maximum and minimum values were 77.4°F and 82.6°F respectively.

Best Time to Visit Eretria
The most sunny months:
July 29 days
August 29 days
June 26 days
The most warm months:
July 93.8 °F
August 92.7 °F
June 87.6 °F
Warmest sea temperature:
August 83.1 °F
July 82.1 °F
September 80.4 °F
The most cold months:
January 53.5 °F
February 56.1 °F
December 57.2 °F
The most rainy months:
February 4 days
December 4 days
January 3 days
The most windy months:
August 9 mph
February 7 mph
January 7 mph

Eretria on the Weather Map

Greece Resorts:
NAME
Athenes +90
Bali Gr +78
Chalkidiki +88
Chania +82
Corfu +88
Crete +78
Hanioti +86
Nikiti +88
Paralia Katerini +84
Pefkochori +86
Rhodes +86
Sithonia +86
Thasos +88
Thessaloniki +84
Zakynthos +86
24 Hours Weather Forecast
Eretria
Local time: 21:19
25 aug, tuesday
0000 84°F
SE
6 mph
0300 82°F
SE
7 mph
0600 80°F
SE
6 mph
0900 86°F
SE
6 mph
1200 92°F
SE
7 mph
1500 94°F
S
7 mph
1800 96°F
SW
7 mph
2100 88°F
S
2 mph