World Resorts Thailand Samui Weather

Samui 7 Days Forecast

23.04
thu
Day
84°F
NW 12 mph
Precip.
0%
Night
84°F
N 14 mph
Precip.
0%
24.04
fri
Day
84°F
NW 7 mph
Precip.
0%
Night
84°F
NW 9 mph
Precip.
0%
25.04
sat
Day
84°F
NW 6 mph
Precip.
0%
Night
84°F
NW 11 mph
Precip.
0%
26.04
sun
Day
84°F
NW 6 mph
Precip.
70%
Night
84°F
NW 10 mph
Precip.
0%
27.04
mon
Day
84°F
NW 8 mph
Precip.
0%
Night
84°F
N 12 mph
Precip.
0%
28.04
tue
Day
84°F
SE 7 mph
Precip.
0%
Night
84°F
N 10 mph
Precip.
0%
29.04
wed
Day
84°F
SE 6 mph
Precip.
0%
Night
86°F
NE 6 mph
Precip.
0%

Sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 86.7°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°F.

Sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 87.1°F. The highest and lowest sea temperatures during the month were 87.6°F and 86.5°F.

Air temperature in Samui, °F

Precipitation total in Samui, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Samui

Sunniest months:
April 17 days
May 14 days
March 14 days
Warmest months:
May 88.3 °F
June 87.8 °F
July 87.1 °F
Warmest sea temp:
May 87.4 °F
April 86.6 °F
June 86.5 °F
Coldest months:
January 83.0 °F
February 83.3 °F
December 83.6 °F
Rainiest months:
November 15 days
October 11 days
December 9 days
Windiest months:
July 12.3 mph
September 11.9 mph
December 11.6 mph

Samui on a weather map

Samui
+84°F
N 11 mph
Feels like: +91°F
Precip.: 0%
Places in Thailand:
Name
°F
+90°F
+82°F
+82°F
+82°F
+82°F
+86°F
+84°F
+84°F
+84°F
+82°F
+86°F
+84°F
+82°F
+84°F
+88°F
24 Hours Forecast
Samui
Local time: 10:09
April 23, thursday
1200
84°F
NW
12 mph
1500
84°F
NW
11 mph
1800
84°F
NW
16 mph
2100
84°F
NW
13 mph
April 24, friday
0000
84°F
N
14 mph
0300
84°F
N
11 mph
0600
84°F
N
9 mph
0900
84°F
N
8 mph
Units of measurement: °C / °F