Measurements:
°C
°F
Surat Thani
82°F
W 4 mph
Feels like: 90°F
Precip: 100%
World Resorts Thailand Surat Thani Weather

Surat Thani Sea Water Temperature

Current Sea Water Temperature:
+90.6°F
Maximum Sea Water Temperature in May: 94.6°F
Minimum Sea Water Temperature in May: 86.8°F
Average water temperature in May: 91.3°F

Sea Water Temperature for the Last 10 Days:

May 13 90.6°F May 08 91.0°F
May 12 90.8°F May 07 91.6°F
May 11 90.8°F May 06 91.6°F
May 10 91.0°F May 05 91.8°F
May 09 91.0°F May 04 91.0°F

When is the Warmest Sea for Surat Thani?

According to our data for the last three years for Surat Thani the highest average sea water temperature was in April, May and June.

Average Water Temperature by Month, °F

Sea Water Temperature in April

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Surat Thani was 91.8°F. The maximum and minimum values were 89.0°F and 93.0°F respectively.

Sea Water Temperature in May

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Surat Thani was 91.2°F. The maximum and minimum values were 90.2°F and 92.8°F respectively.

Sea Water Temperature in June

Select Year: 2025 2024 2023

The average sea surface temperature in June 2025 for Surat Thani was 89.8°F. The maximum and minimum values were 89.2°F and 90.2°F respectively.

Best Time to Visit Surat Thani
The most sunny months:
March 24 days
February 20 days
April 20 days
The most warm months:
April 97.6 °F
March 96.1 °F
May 95.9 °F
Warmest sea temperature:
April 91.3 °F
May 91.3 °F
June 89.9 °F
The most cold months:
December 88.7 °F
January 89.5 °F
November 90.3 °F
The most rainy months:
May 15 days
October 13 days
September 12 days
The most windy months:
December 7 mph
July 7 mph
August 7 mph

Surat Thani on the Weather Map

Thailand Resorts:
NAME
Bangkok +92
Hua Hin +88
Karon Beach +88
Kata Beach +88
Khao Lak +86
Ko Li Pe +90
Koh Chang +90
Nai Yang Beach +88
Patong Beach +88
Pattaya +88
Phangan +88
Phi Phi +90
Phuket +88
Samet +88
Samui +88
24 Hours Weather Forecast
Surat Thani
Local time: 20:56
13 may, wednesday
2100 82°F
W
4 mph
14 may, thursday
0000 82°F
E
2 mph
0300 82°F
NE
4 mph
0600 82°F
NE
4 mph
0900 88°F
NE
6 mph
1200 96°F
E
5 mph
1500 96°F
S
1 mph
1800 86°F
NE
5 mph