Measurements:
°C
°F
Samui
86°F
NW 13 mph
Feels like: 90°F
Precip: 100%
World Resorts Thailand Samui Weather

7 Day Weather Forecast

03.12
thu
DAY
84°F
NW 13 mph
precip
87%
NIGHT
86°F
NW 16 mph
precip
0%
03.13
fri
DAY
84°F
NW 19 mph
precip
100%
NIGHT
86°F
NW 17 mph
precip
66%
03.14
sat
DAY
84°F
NW 16 mph
precip
100%
NIGHT
84°F
NW 12 mph
precip
0%
03.15
sun
DAY
84°F
W 14 mph
precip
100%
NIGHT
86°F
NW 12 mph
precip
0%
03.16
mon
DAY
84°F
NW 14 mph
precip
0%
NIGHT
84°F
NW 12 mph
precip
0%
03.17
tue
DAY
86°F
NW 14 mph
precip
64%
NIGHT
86°F
NW 14 mph
precip
0%
03.18
wed
DAY
86°F
NW 14 mph
precip
84%
NIGHT
86°F
NW 9 mph
precip
0%

Samui Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Samui was 29.3°F. The maximum and minimum values were 28.5°F and 30.0°F respectively.

Samui on the Weather Map

Best Time to Visit Samui
The most sunny months:
April 17 days
March 15 days
May 14 days
The most warm months:
May 92.6 °F
June 92.0 °F
July 91.3 °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