Measurements:
°C
°F
Heraklion
62°F
E 18 mph
Feels like: 62°F
Precip: 0%
World Resorts Greece Heraklion Weather

Heraklion Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in January: 67.0°F
Minimum Sea Water Temperature in January: 60.8°F
Average water temperature in January: 63.5°F

Sea Water Temperature for the Last 10 Days:

January 09 65.6°F January 04 66.2°F
January 08 66.0°F January 03 65.6°F
January 07 65.8°F January 02 66.0°F
January 06 66.0°F January 01 66.4°F
January 05 66.0°F December 31 66.6°F

When is the Warmest Sea for Heraklion?

According to our data for the last three years for Heraklion the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Heraklion was 82.7°F. The maximum and minimum values were 81.8°F and 83.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Heraklion was 82.2°F. The maximum and minimum values were 79.8°F and 85.6°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Heraklion was 81.0°F. The maximum and minimum values were 77.6°F and 82.8°F respectively.

Best Time to Visit Heraklion
The most sunny months:
July 30 days
August 30 days
June 28 days
The most warm months:
July 89.5 °F
August 89.4 °F
September 84.9 °F
Warmest sea temperature:
August 83.0 °F
July 81.6 °F
September 81.1 °F
The most cold months:
January 58.3 °F
February 59.3 °F
December 61.4 °F
The most rainy months:
December 4 days
January 4 days
February 3 days
The most windy months:
January 10 mph
February 10 mph
July 10 mph

Heraklion on the Weather Map

Greece Resorts:
NAME
Athenes +56
Athos +50
Bali Gr +62
Chalkidiki +46
Chania +62
Corfu +48
Crete +60
Heraklion +62
Kalamata +50
Paralia Katerini +46
Rhodes +54
Santorini +58
Thasos +44
Thessaloniki +44
Zakynthos +50
24 Hours Weather Forecast
Heraklion
Local time: 15:07
09 jan, friday
1800 56°F
E
9 mph
2100 56°F
NE
7 mph
10 jan, saturday
0000 54°F
NE
7 mph
0300 54°F
NE
6 mph
0600 54°F
NE
6 mph
0900 58°F
N
7 mph
1200 64°F
NE
9 mph
1500 62°F
NE
12 mph