World Resorts Greece Hersonissos Weather

Hersonissos sea water temperature

Current sea water temperature:
+66.6°F
Minimum sea water temperature in May: 73.4°F
Maximum sea water temperature in May: 63.1°F
Average sea water temperature in May: 67.4°F

Sea water temperature for the last 10 days:

May 16 66.6°F May 11 66.4°F
May 15 67.3°F May 10 65.1°F
May 14 66.4°F May 9 64.4°F
May 13 67.1°F May 8 64.8°F
May 12 65.8°F May 7 64.6°F

When is the warmest sea in Hersonissos?

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

Monthly Sea Temperatures in Hersonissos, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 79.5°F. The highest and lowest sea temperatures during the month were 80.6°F and 78.6°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 82.2°F and 76.3°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 77.9°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.7°F.

Best time for vacation in Hersonissos

Sunniest months:
July 30 days
August 30 days
June 27 days
Warmest months:
August 83.9 °F
July 83.8 °F
September 80.0 °F
Warmest sea temp:
August 79.6 °F
July 78.4 °F
September 78.0 °F
Coldest months:
January 57.3 °F
February 58.2 °F
December 60.3 °F
Rainiest months:
January 5 days
December 4 days
February 4 days
Windiest months:
January 10.6 mph
July 10.6 mph
August 10.5 mph

Hersonissos on a weather map

Hersonissos
+75°F
W 5 mph
Feels like: +77°F
Precip.: 0%
Places in Greece:
Name
°F
+72°F
+66°F
+75°F
+59°F
+73°F
+66°F
+66°F
+68°F
+73°F
+64°F
+68°F
+63°F
+64°F
+72°F
24 Hours Forecast
Hersonissos
Local time: 16:47
May 16, saturday
1800
75°F
W
5 mph
2100
66°F
N
1 mph
May 17, sunday
0000
63°F
E
3 mph
0300
63°F
E
3 mph
0600
61°F
E
6 mph
0900
70°F
SE
6 mph
1200
73°F
SE
13 mph
1500
72°F
SE
15 mph
Units of measurement: °C / °F