Measurements:
°C
°F
Rethymno
70°F
S 4 mph
Feels like: 70°F
Precip: 2%
World Resorts Greece Rethymno Weather

Rethymno Sea Water Temperature

Current Sea Water Temperature:
+75.2°F
Maximum Sea Water Temperature in October: 81.2°F
Minimum Sea Water Temperature in October: 72.2°F
Average water temperature in October: 76.9°F

Sea Water Temperature for the Last 10 Days:

October 19 75.2°F October 14 75.8°F
October 18 74.8°F October 13 76.8°F
October 17 75.4°F October 12 76.4°F
October 16 75.4°F October 11 77.0°F
October 15 75.0°F October 10 77.0°F

When is the Warmest Sea for Rethymno?

According to our data for the last three years for Rethymno 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Rethymno was 84.3°F. The maximum and minimum values were 82.6°F and 86.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Rethymno was 84.1°F. The maximum and minimum values were 82.6°F and 87.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Rethymno was 83.1°F. The maximum and minimum values were 80.2°F and 85.2°F respectively.

Best Time to Visit Rethymno
The most sunny months:
July 30 days
August 30 days
June 28 days
The most warm months:
August 88.9 °F
July 88.7 °F
September 84.5 °F
Warmest sea temperature:
August 83.6 °F
July 82.3 °F
September 81.7 °F
The most cold months:
January 59.0 °F
February 59.7 °F
March 62.4 °F
The most rainy months:
January 4 days
December 4 days
February 3 days
The most windy months:
January 10 mph
February 10 mph
March 9 mph

Rethymno on the Weather Map

Greece Resorts:
NAME
F°
Athenes +70
Bali Gr +68
Chalkidiki +64
Chania +70
Corfu +66
Crete +60
Hanioti +68
Hersonissos +68
Paralia Katerini +68
Pefkochori +68
Rhodes +68
Sithonia +68
Thasos +60
Thessaloniki +66
Zakynthos +66
24 Hours Weather Forecast
Rethymno
Local time: 12:02
19 oct, monday
1500 72°F
S
5 mph
1800 68°F
S
4 mph
2100 64°F
SW
4 mph
20 oct, tuesday
0000 58°F
SW
3 mph
0300 56°F
S
2 mph
0600 56°F
SW
3 mph
0900 64°F
SW
2 mph
1200 72°F
S
4 mph