Measurements:
°C
°F
Piraeus
58°F
S 2 mph
Feels like: 60°F
Precip: 0%
World Resorts Greece Piraeus Weather

Piraeus Sea Water Temperature

Current Sea Water Temperature:
+60.8°F
Maximum Sea Water Temperature in February: 62.0°F
Minimum Sea Water Temperature in February: 57.0°F
Average water temperature in February: 59.6°F

Sea Water Temperature for the Last 10 Days:

February 21 60.8°F February 16 61.0°F
February 20 60.4°F February 15 61.2°F
February 19 60.4°F February 14 62.0°F
February 18 60.8°F February 13 61.4°F
February 17 60.2°F February 12 61.4°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 57.0 °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 +60
Athos +56
Chalkidiki +56
Chania +62
Corfu +56
Crete +50
Heraklion +60
Lefkada +56
Mykonos +58
Paralia Katerini +58
Rhodes +52
Santorini +60
Thasos +48
Thessaloniki +52
Zakynthos +54
24 Hours Weather Forecast
Piraeus
Local time: 13:19
21 feb, saturday
1500 60°F
SE
2 mph
1800 58°F
S
4 mph
2100 54°F
S
6 mph
22 feb, sunday
0000 52°F
S
8 mph
0300 50°F
S
7 mph
0600 50°F
S
9 mph
0900 48°F
S
11 mph
1200 50°F
S
15 mph