15.09
tue
tue
Day
73°F
SE 15 mph
Precip.
6%
6%
Night
75°F
SE 14 mph
Precip.
14%
14%
16.09
wed
wed
Day
73°F
E 6 mph
Precip.
14%
14%
Night
72°F
E 9 mph
Precip.
5%
5%
17.09
thu
thu
Day
72°F
SE 13 mph
Precip.
6%
6%
Night
73°F
SE 23 mph
Precip.
4%
4%
18.09
fri
fri
Day
72°F
S 21 mph
Precip.
4%
4%
Night
75°F
SE 21 mph
Precip.
5%
5%
19.09
sat
sat
Day
73°F
SE 14 mph
Precip.
4%
4%
Night
75°F
SE 12 mph
Precip.
6%
6%
20.09
sun
sun
Day
73°F
SE 13 mph
Precip.
5%
5%
Night
75°F
SE 14 mph
Precip.
7%
7%
21.09
mon
mon
Day
73°F
SE 17 mph
Precip.
7%
7%
Night
77°F
SE 12 mph
Precip.
8%
8%
22.09
tue
tue
Day
75°F
S 19 mph
Precip.
4%
4%
Night
75°F
S 24 mph
Precip.
5%
5%
23.09
wed
wed
Day
72°F
S 25 mph
Precip.
10%
10%
Night
73°F
S 19 mph
Precip.
3%
3%
24.09
thu
thu
Day
72°F
S 17 mph
Precip.
3%
3%
Night
73°F
SE 17 mph
Precip.
5%
5%
25.09
fri
fri
Day
73°F
S 24 mph
Precip.
3%
3%
Night
73°F
S 24 mph
Precip.
4%
4%
26.09
sat
sat
Day
72°F
S 25 mph
Precip.
2%
2%
Night
75°F
S 21 mph
Precip.
5%
5%
27.09
sun
sun
Day
73°F
SE 14 mph
Precip.
3%
3%
Night
73°F
SE 11 mph
Precip.
5%
5%
28.09
mon
mon
Day
73°F
SE 9 mph
Precip.
4%
4%
Night
73°F
SE 13 mph
Precip.
8%
8%
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.
Air temperature in Kos, °F
Precipitation total in Kos, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Kos
Kos on a weather map
Places in Greece:
Name
°F
24 Hours Forecast
Kos
Local time: 07:53
September 15, tuesday
0900
73°F
S
14 mph
14 mph
1200
73°F
SE
15 mph
15 mph
1500
73°F
SE
20 mph
20 mph
1800
75°F
SE
19 mph
19 mph
2100
75°F
SE
14 mph
14 mph
September 16, wednesday
0000
75°F
SE
14 mph
14 mph
0300
75°F
SE
14 mph
14 mph
0600
73°F
SE
11 mph
11 mph
