World Resorts Greece Rethymno Weather

Rethymno sea water temperature

Current sea water temperature:
+66.2°F
Minimum sea water temperature in December: 70.3°F
Maximum sea water temperature in December: 62.1°F
Average sea water temperature in December: 65.7°F

Sea water temperature for the last 10 days:

December 20 66.2°F December 15 66.7°F
December 19 66.6°F December 14 66.7°F
December 18 66.2°F December 13 67.3°F
December 17 66.6°F December 12 67.5°F
December 16 66.9°F December 11 67.8°F

When is the warmest sea in Rethymno?

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

Monthly Sea Temperatures in Rethymno, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 80.1°F. The highest and lowest sea temperatures during the month were 81.3°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 79.8°F. The highest and lowest sea temperatures during the month were 83.1°F and 76.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 78.4°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.7°F.

Best time for vacation in Rethymno

Sunniest months:
July 30 days
August 30 days
June 28 days
Warmest months:
August 85.1 °F
July 85.0 °F
September 81.4 °F
Warmest sea temp:
August 80.2 °F
July 78.9 °F
September 78.4 °F
Coldest months:
January 58.1 °F
February 58.7 °F
December 61.2 °F
Rainiest months:
January 4 days
December 4 days
February 3 days
Windiest months:
January 10.4 mph
February 10.3 mph
December 9.4 mph

Rethymno on a weather map

Rethymno
+61°F
W 4 mph
Feels like: +61°F
Precip.: 0%
Places in Greece:
Name
°F
+57°F
+57°F
+61°F
+57°F
+61°F
+57°F
+61°F
+59°F
+54°F
+61°F
+52°F
+55°F
+59°F
+61°F
24 Hours Forecast
Rethymno
Local time: 12:52
December 20, saturday
1500
61°F
W
4 mph
1800
59°F
W
8 mph
2100
57°F
N
6 mph
December 21, sunday
0000
55°F
N
6 mph
0300
57°F
NE
1 mph
0600
54°F
SW
2 mph
0900
57°F
S
2 mph
1200
61°F
SE
5 mph
Units of measurement: °C / °F