16.09
wed
wed
Day
82°F
N 5 mph
Precip.
51%
51%
Night
82°F
NE 15 mph
Precip.
69%
69%
17.09
thu
thu
Day
81°F
E 15 mph
Precip.
72%
72%
Night
82°F
NE 12 mph
Precip.
51%
51%
18.09
fri
fri
Day
81°F
N 6 mph
Precip.
72%
72%
Night
81°F
N 9 mph
Precip.
23%
23%
19.09
sat
sat
Day
82°F
N 7 mph
Precip.
51%
51%
Night
81°F
N 10 mph
Precip.
80%
80%
20.09
sun
sun
Day
79°F
NE 4 mph
Precip.
32%
32%
Night
81°F
NE 11 mph
Precip.
40%
40%
21.09
mon
mon
Day
79°F
E 16 mph
Precip.
78%
78%
Night
81°F
E 12 mph
Precip.
61%
61%
22.09
tue
tue
Day
79°F
E 9 mph
Precip.
82%
82%
Night
81°F
E 16 mph
Precip.
83%
83%
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 84.8°F. The highest and lowest sea temperatures during the month were 85.5°F and 84.2°F.
Air temperature in Ko Wai, °F
Precipitation total in Ko Wai, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Ko Wai
Ko Wai on a weather map
Places in Thailand:
Name
°F
24 Hours Forecast
Ko Wai
Local time: 06:49
September 16, wednesday
0900
82°F
N
6 mph
6 mph
1200
82°F
N
5 mph
5 mph
1500
84°F
N
7 mph
7 mph
1800
84°F
N
9 mph
9 mph
2100
82°F
NE
11 mph
11 mph
September 17, thursday
0000
82°F
NE
15 mph
15 mph
0300
81°F
E
24 mph
24 mph
0600
81°F
E
25 mph
25 mph
