World Resorts Greece Hersonissos Weather

Hersonissos sea water temperature

Current sea water temperature:
+65.7°F
Minimum sea water temperature in December: 70.0°F
Maximum sea water temperature in December: 62.1°F
Average sea water temperature in December: 65.3°F

Sea water temperature for the last 10 days:

December 23 65.7°F December 18 66.0°F
December 22 65.7°F December 17 66.4°F
December 21 65.3°F December 16 66.7°F
December 20 65.7°F December 15 66.7°F
December 19 65.8°F December 14 66.9°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 58.1 °F
December 60.3 °F
Rainiest months:
January 5 days
December 4 days
February 4 days
Windiest months:
July 10.6 mph
January 10.5 mph
August 10.5 mph

Hersonissos on a weather map

Hersonissos
+59°F
S 7 mph
Feels like: +57°F
Precip.: 100%
Places in Greece:
Name
°F
+52°F
+54°F
+61°F
+59°F
+59°F
+57°F
+55°F
+57°F
+48°F
+63°F
+48°F
+54°F
+55°F
+59°F
24 Hours Forecast
Hersonissos
Local time: 09:30
December 23, tuesday
1200
61°F
S
6 mph
1500
59°F
S
5 mph
1800
57°F
S
2 mph
2100
57°F
NW
2 mph
December 24, wednesday
0000
57°F
N
5 mph
0300
55°F
NW
6 mph
0600
55°F
N
6 mph
0900
59°F
N
6 mph
Units of measurement: °C / °F