Measurements:
°C
°F
Eretria
72°F
SW 6 mph
Feels like: 72°F
Precip: 0%
World Resorts Greece Eretria Weather

Eretria Sea Water Temperature

Current Sea Water Temperature:
+67.0°F
Maximum Sea Water Temperature in May: 73.8°F
Minimum Sea Water Temperature in May: 60.4°F
Average water temperature in May: 67.6°F

Sea Water Temperature for the Last 10 Days:

May 14 67.0°F May 09 63.8°F
May 13 67.0°F May 08 63.4°F
May 12 66.0°F May 07 63.6°F
May 11 64.2°F May 06 63.2°F
May 10 64.2°F May 05 62.8°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Eretria was 82.7°F. The maximum and minimum values were 80.6°F and 86.0°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 94.0 °F
August 92.7 °F
June 87.7 °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
July 7 mph
February 7 mph

Eretria on the Weather Map

Greece Resorts:
NAME
Athenes +72
Athos +62
Bali Gr +72
Chalkidiki +60
Chania +72
Corfu +68
Crete +64
Heraklion +72
Kassandra +62
Paralia Katerini +64
Rhodes +70
Santorini +68
Thasos +58
Thessaloniki +66
Zakynthos +64
24 Hours Weather Forecast
Eretria
Local time: 16:46
14 may, thursday
1800 72°F
SW
6 mph
2100 64°F
NW
6 mph
15 may, friday
0000 58°F
W
3 mph
0300 58°F
NW
2 mph
0600 54°F
SE
1 mph
0900 66°F
E
3 mph
1200 70°F
SE
4 mph
1500 74°F
SE
4 mph