Measurements:
°C
°F
CURRENT WEATHER
23:16
Ko Wai
84°F
W 2 mph
Feels like: 90°F
Precip: 31%
World Resorts Thailand Ko Wai Weather

7 Day Weather Forecast

09.11
fri
DAY
84°F
SE 6 mph
precip
14%
NIGHT
84°F
W 2 mph
precip
31%
09.12
sat
DAY
86°F
S 12 mph
precip
22%
NIGHT
86°F
SW 11 mph
precip
66%
09.13
sun
DAY
86°F
S 17 mph
precip
13%
NIGHT
84°F
SW 18 mph
precip
22%
09.14
mon
DAY
82°F
S 11 mph
precip
26%
NIGHT
84°F
SE 7 mph
precip
21%
09.15
tue
DAY
86°F
NE 12 mph
precip
75%
NIGHT
84°F
NE 7 mph
precip
70%
09.16
wed
DAY
84°F
N 8 mph
precip
52%
NIGHT
86°F
NE 7 mph
precip
69%
09.17
thu
DAY
88°F
NE 7 mph
precip
18%
NIGHT
86°F
N 7 mph
precip
57%

Ko Wai Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Ko Wai was 29.1°F. The maximum and minimum values were 28.8°F and 29.4°F respectively.

Ko Wai on the Weather Map

Best Time to Visit Ko Wai
The most sunny months:
January 21 days
December 21 days
February 16 days
The most warm months:
May 92.2 °F
April 91.6 °F
November 90.3 °F
Warmest sea temperature:
May 91.9 °F
April 91.3 °F
June 89.8 °F
The most cold months:
January 87.6 °F
February 88.1 °F
September 88.5 °F
The most rainy months:
July 22 days
August 21 days
September 20 days
The most windy months:
July 11 mph
August 11 mph
June 9 mph
more details