Measurements:
°C
°F
Eretria
94°F
S 9 mph
Feels like: 94°F
Precip: 1%
World Resorts Greece Eretria Weather

Eretria Sea Water Temperature

Current Sea Water Temperature:
+82.8°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 04 82.8°F July 30 83.6°F
August 03 82.8°F July 29 83.2°F
August 02 82.8°F July 28 83.0°F
August 01 83.4°F July 27 83.2°F
July 31 83.6°F July 26 83.4°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Eretria was 82.3°F. The maximum and minimum values were 80.6°F and 84.6°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 +98
Bali Gr +92
Chalkidiki +86
Chania +88
Corfu +86
Crete +84
Hanioti +88
Heraklion +88
Hersonissos +86
Paralia Katerini +96
Rhodes +94
Sithonia +90
Thasos +84
Thessaloniki +96
Zakynthos +86
24 Hours Weather Forecast
Eretria
Local time: 11:43
04 aug, tuesday
1200 94°F
S
9 mph
1500 96°F
S
11 mph
1800 96°F
SW
11 mph
2100 84°F
SE
5 mph
05 aug, wednesday
0000 80°F
SE
4 mph
0300 80°F
SE
4 mph
0600 78°F
SE
6 mph
0900 90°F
S
7 mph