Measurements:
°C
°F
Samui
90°F
SE 6 mph
Feels like: 98°F
Precip: 18%
World Resorts Thailand Samui Weather

7 Day Weather Forecast

10.24
sat
DAY
88°F
SE 6 mph
precip
23%
NIGHT
88°F
SE 8 mph
precip
22%
10.25
sun
DAY
88°F
S 6 mph
precip
18%
NIGHT
88°F
NW 5 mph
precip
30%
10.26
mon
DAY
88°F
NW 9 mph
precip
41%
NIGHT
88°F
NW 9 mph
precip
15%
10.27
tue
DAY
86°F
NW 2 mph
precip
17%
NIGHT
84°F
W 2 mph
precip
39%
10.28
wed
DAY
80°F
W 2 mph
precip
85%
NIGHT
82°F
S 6 mph
precip
25%
10.29
thu
DAY
86°F
SW 6 mph
precip
58%
NIGHT
86°F
W 8 mph
precip
45%
10.30
fri
DAY
84°F
W 7 mph
precip
68%
NIGHT
86°F
W 7 mph
precip
53%

Samui Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Samui was 30.4°F. The maximum and minimum values were 29.9°F and 30.9°F respectively.

Samui on the Weather Map

Best Time to Visit Samui
The most sunny months:
April 18 days
May 14 days
March 14 days
The most warm months:
May 92.3 °F
June 91.8 °F
July 91.1 °F
Warmest sea temperature:
May 91.6 °F
April 90.6 °F
June 90.6 °F
The most cold months:
January 86.7 °F
February 87.0 °F
December 87.3 °F
The most rainy months:
November 15 days
October 11 days
December 9 days
The most windy months:
July 12 mph
September 12 mph
August 11 mph