Measurements:
°C
°F
CURRENT WEATHER
03:46
Kos
78°F
SE 20 mph
Feels like: 80°F
Precip: 7%
World Resorts Greece Kos Weather

7 Day Weather Forecast

09.14
mon
DAY
78°F
S 19 mph
precip
6%
NIGHT
76°F
SE 22 mph
precip
17%
09.15
tue
DAY
76°F
SE 17 mph
precip
3%
NIGHT
78°F
SE 22 mph
precip
17%
09.16
wed
DAY
74°F
SE 13 mph
precip
12%
NIGHT
76°F
E 8 mph
precip
14%
09.17
thu
DAY
74°F
SE 11 mph
precip
5%
NIGHT
76°F
SE 19 mph
precip
6%
09.18
fri
DAY
76°F
S 14 mph
precip
4%
NIGHT
76°F
SE 9 mph
precip
4%
09.19
sat
DAY
76°F
SE 14 mph
precip
6%
NIGHT
76°F
SE 14 mph
precip
19%
09.20
sun
DAY
76°F
SE 16 mph
precip
6%
NIGHT
76°F
SE 10 mph
precip
21%

Kos Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Kos was 24.6°F. The maximum and minimum values were 23.7°F and 25.3°F respectively.

Kos on the Weather Map

Best Time to Visit Kos
The most sunny months:
July 31 days
August 31 days
June 29 days
The most warm months:
August 86.6 °F
July 86.3 °F
September 82.2 °F
Warmest sea temperature:
August 81.3 °F
September 80.2 °F
July 78.7 °F
The most cold months:
January 58.0 °F
February 58.5 °F
March 60.5 °F
The most rainy months:
January 7 days
December 6 days
February 5 days
The most windy months:
January 17 mph
February 17 mph
July 16 mph
more details