Current sea water temperature:
+67.3°F
| Minimum sea water temperature in May: | 72.9°F |
| Maximum sea water temperature in May: | 63.1°F |
| Average sea water temperature in May: | 67.5°F |
| more information | |
14 days
forecast
forecast
| Kos |
monthly
weather
weather
| Kos |
Sea water temperature for the last 10 days:
| May 18 | 67.3°F | May 13 | 66.6°F |
| May 17 | 66.7°F | May 12 | 65.7°F |
| May 16 | 66.9°F | May 11 | 66.0°F |
| May 15 | 66.9°F | May 10 | 66.0°F |
| May 14 | 66.2°F | May 9 | 65.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Kos?
Based on the data about daily sea water temperature for the last three years the warmest sea in Kos was noticed in August, September and July.
Monthly Sea Temperatures in Kos, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 78.5°F. The highest and lowest sea temperatures during the month were 81.0°F and 76.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 76.2°F. The highest and lowest sea temperatures during the month were 77.5°F and 74.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 77.1°F. The highest and lowest sea temperatures during the month were 79.3°F and 73.0°F.
current
weather
weather
| Kos |
weather in
May
May
| Kos |
Best time for vacation in Kos
Kos on a weather map
Places in Greece:
Name
°F
24 Hours Forecast
Kos
Local time: 22:25
May 19, tuesday
0000
66°F
SE
15 mph
15 mph
0300
64°F
SE
19 mph
19 mph
0600
64°F
SE
15 mph
15 mph
0900
66°F
SE
14 mph
14 mph
1200
66°F
SE
11 mph
11 mph
1500
66°F
E
13 mph
13 mph
1800
66°F
E
11 mph
11 mph
2100
64°F
E
11 mph
11 mph
