World Resorts Thailand Surat Thani Weather

Surat Thani weather in May

Weather in Surat Thani: May

Average day temperature: 91.3°F
Average night temperature: 77.9°F
Sea water temperature: 87.2°F
Number of sunny days: 11 days
Day length: 12.4 - 12.6 hours
Number of rainy days: 15 days
Precipitation totals: 6.4 in.

Air temperature in May, °F

Show year:
2025
2024
2023

The highest day temperature during May of 2025 was 90°F. At the same time the lowest night temperature was 76°F. Daily and nightly averages during May were 86.4°F and 77.6°F.

Sea water temperature in Surat Thani 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 88.5°F and 86.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in May, in.

Precipitation total value in Surat Thani in May is 5.7 in. Other months of the year show relatively similar values.

Wind speed in May, mph

The average wind speed value in May is 5.8 mph It makes May one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 6.5.

Best time for vacation in Surat Thani

Sunniest months:
March 24 days
February 20 days
April 20 days
Warmest months:
April 92.8 °F
March 91.6 °F
May 91.3 °F
Warmest sea temp:
May 87.2 °F
April 87.2 °F
June 85.9 °F
Coldest months:
December 85.0 °F
January 85.7 °F
November 86.2 °F
Rainiest months:
May 15 days
October 13 days
September 12 days
Windiest months:
December 7.8 mph
July 7.7 mph
August 7.4 mph

Surat Thani on a weather map

Surat Thani
+84°F
SW 9 mph
Feels like: +91°F
Precip.: 100%
Places in Thailand:
Name
°F
+79°F
+81°F
+84°F
+84°F
+81°F
+81°F
+81°F
+82°F
+84°F
+84°F
+81°F
+84°F
+81°F
+81°F
24 Hours Forecast
Surat Thani
Local time: 13:13
December 05, friday
1500
82°F
SW
10 mph
1800
79°F
W
9 mph
2100
77°F
W
8 mph
December 06, saturday
0000
75°F
NW
4 mph
0300
75°F
NW
3 mph
0600
75°F
NW
2 mph
0900
81°F
W
5 mph
1200
84°F
W
9 mph
Units of measurement: °C / °F