World Resorts Greece Piraeus Weather

Piraeus sea water temperature

Current sea water temperature:
+80.6°F
Minimum sea water temperature in July: 83.5°F
Maximum sea water temperature in July: 73.9°F
Average sea water temperature in July: 79.0°F

Sea water temperature for the last 10 days:

July 16 80.6°F July 11 78.3°F
July 15 79.9°F July 10 77.7°F
July 14 80.1°F July 9 78.1°F
July 13 79.5°F July 8 77.5°F
July 12 78.8°F July 7 77.2°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:
2026
2025
2024

The average sea water temperature in July of 2026 was 78.2°F. The highest and lowest sea temperatures during the month were 80.6°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.

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 85.1 °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
+90°F
S 8 mph
Feels like: +90°F
Precip.: 1%
Places in Greece:
Name
°F
+91°F
+88°F
+82°F
+84°F
+82°F
+81°F
+90°F
+90°F
+84°F
+77°F
+81°F
+84°F
+86°F
+82°F
24 Hours Forecast
Piraeus
Local time: 12:24
July 16, thursday
1500
91°F
SW
9 mph
1800
90°F
SW
13 mph
2100
84°F
S
6 mph
July 17, friday
0000
82°F
S
6 mph
0300
81°F
S
7 mph
0600
79°F
S
8 mph
0900
84°F
S
10 mph
1200
88°F
S
15 mph
Units of measurement: °C / °F