World Resorts Greece Piraeus Weather

Piraeus sea water temperature

Current sea water temperature:
+72.5°F
Minimum sea water temperature in June: 81.0°F
Maximum sea water temperature in June: 67.8°F
Average sea water temperature in June: 73.7°F

Sea water temperature for the last 10 days:

June 5 72.5°F May 30 68.5°F
June 4 72.3°F May 29 69.1°F
June 3 71.1°F May 28 68.2°F
June 1 69.8°F May 27 68.0°F
May 31 69.6°F May 26 67.6°F

When is the warmest sea in Piraeus?

Based on the data about daily sea water temperature for the last three years the warmest sea in Piraeus was noticed in August, July and September.

Monthly Sea Temperatures in Piraeus, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 81.3°F and 78.1°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 79.0°F. The highest and lowest sea temperatures during the month were 83.3°F and 76.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 78.2°F. The highest and lowest sea temperatures during the month were 79.9°F and 75.4°F.

Best time for vacation in Piraeus

Sunniest months:
July 30 days
August 30 days
June 27 days
Warmest months:
July 91.1 °F
August 90.0 °F
June 85.3 °F
Warmest sea temp:
August 80.3 °F
July 79.0 °F
September 78.3 °F
Coldest months:
January 54.3 °F
February 56.4 °F
December 57.6 °F
Rainiest months:
February 3 days
January 3 days
December 3 days
Windiest months:
August 10.6 mph
July 9.3 mph
February 9.2 mph

Piraeus on a weather map

Piraeus
+70°F
W 1 mph
Feels like: +70°F
Precip.: 2%
Places in Greece:
Name
°F
+66°F
+57°F
+70°F
+66°F
+72°F
+70°F
+68°F
+66°F
+68°F
+73°F
+70°F
+72°F
+66°F
+68°F
24 Hours Forecast
Piraeus
Local time: 23:45
June 06, saturday
0000
70°F
W
1 mph
0300
68°F
SE
1 mph
0600
68°F
S
2 mph
0900
73°F
SE
1 mph
1200
79°F
N
6 mph
1500
79°F
N
10 mph
1800
77°F
N
8 mph
2100
73°F
N
3 mph
Units of measurement: °C / °F