Measurements:
°C
°F
CURRENT WEATHER
17:44
Samui
90°F
N 6 mph
Feels like: 100°F
Precip: 25%
World Resorts Thailand Samui Weather

7 Day Weather Forecast

08.04
tue
DAY
88°F
E 9 mph
precip
17%
NIGHT
88°F
NE 16 mph
precip
18%
08.05
wed
DAY
90°F
NE 14 mph
precip
47%
NIGHT
88°F
NE 22 mph
precip
12%
08.06
thu
DAY
88°F
NE 20 mph
precip
29%
NIGHT
88°F
NE 22 mph
precip
41%
08.07
fri
DAY
88°F
NE 19 mph
precip
57%
NIGHT
88°F
NE 25 mph
precip
10%
08.08
sat
DAY
88°F
NE 20 mph
precip
38%
NIGHT
88°F
NE 22 mph
precip
8%
08.09
sun
DAY
90°F
NE 19 mph
precip
20%
NIGHT
88°F
NE 21 mph
precip
9%
08.10
mon
DAY
88°F
E 18 mph
precip
24%
NIGHT
88°F
NE 22 mph
precip
8%

Samui Sea Water Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Samui was 29.7°F. The maximum and minimum values were 29.1°F and 30.6°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
December 11 mph
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