Measurements:
°C
°F
Piraeus
56°F
S 11 mph
Feels like: 52°F
Precip: 0%
World Resorts Greece Piraeus Weather

Piraeus Sea Water Temperature

Current Sea Water Temperature:
+60.6°F
Maximum Sea Water Temperature in March: 63.2°F
Minimum Sea Water Temperature in March: 56.8°F
Average water temperature in March: 59.5°F

Sea Water Temperature for the Last 10 Days:

March 13 60.6°F March 08 60.6°F
March 12 60.4°F March 07 60.8°F
March 11 60.6°F March 06 60.6°F
March 10 60.6°F March 05 60.8°F
March 09 61.0°F March 04 61.2°F

When is the Warmest Sea for Piraeus?

According to our data for the last three years for Piraeus 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 Piraeus was 82.8°F. The maximum and minimum values were 81.2°F and 84.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Piraeus was 82.2°F. The maximum and minimum values were 79.0°F and 87.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Piraeus was 81.4°F. The maximum and minimum values were 78.2°F and 83.2°F respectively.

Best Time to Visit Piraeus
The most sunny months:
July 30 days
August 30 days
June 27 days
The most warm months:
July 95.7 °F
August 94.4 °F
June 89.2 °F
Warmest sea temperature:
August 83.6 °F
July 82.2 °F
September 81.5 °F
The most cold months:
January 54.7 °F
February 57.1 °F
December 58.5 °F
The most rainy months:
February 3 days
January 3 days
December 3 days
The most windy months:
August 11 mph
July 9 mph
February 9 mph

Piraeus on the Weather Map

Greece Resorts:
NAME
Athenes +56
Athos +52
Chalkidiki +54
Chania +56
Corfu +58
Crete +44
Heraklion +54
Kassandra +56
Mykonos +54
Paralia Katerini +54
Rhodes +58
Santorini +58
Thasos +50
Thessaloniki +54
Zakynthos +56
24 Hours Weather Forecast
Piraeus
Local time: 16:53
13 mar, friday
1800 56°F
S
11 mph
2100 50°F
S
8 mph
14 mar, saturday
0000 48°F
S
7 mph
0300 46°F
S
7 mph
0600 46°F
S
7 mph
0900 52°F
S
7 mph
1200 58°F
S
8 mph
1500 60°F
S
9 mph