Current sea water temperature:
+80.1°F
| Minimum sea water temperature in September: | 81.9°F |
| Maximum sea water temperature in September: | 75.2°F |
| Average sea water temperature in September: | 78.4°F |
| more information | |
14 days
forecast
forecast
| Piraeus |
monthly
weather
weather
| Piraeus |
Sea water temperature for the last 10 days:
| September 14 | 80.1°F | September 9 | 79.9°F |
| September 13 | 79.7°F | September 8 | 80.2°F |
| September 12 | 79.5°F | September 7 | 80.4°F |
| September 11 | 79.3°F | September 6 | 80.1°F |
| September 10 | 79.3°F | September 5 | 80.4°F |
Monthly sea water temperature, °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:
2026
2025
2024
The average sea water temperature in August of 2026 was 79.6°F. The highest and lowest sea temperatures during the month were 81.7°F and 77.9°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 79.6°F. The highest and lowest sea temperatures during the month were 82.8°F and 75.9°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.
current
weather
weather
| Piraeus |
weather in
September
September
| Piraeus |
Best time for vacation in Piraeus
Piraeus on a weather map
Places in Greece:
Name
°F
24 Hours Forecast
Piraeus
Local time: 18:16
September 14, monday
2100
72°F
SW
6 mph
6 mph
September 15, tuesday
0000
70°F
S
3 mph
3 mph
0300
70°F
S
4 mph
4 mph
0600
66°F
SW
9 mph
9 mph
0900
72°F
S
9 mph
9 mph
1200
79°F
SW
12 mph
12 mph
1500
77°F
SW
14 mph
14 mph
1800
73°F
SW
12 mph
12 mph
