World Resorts Thailand Bangkok Weather

Bangkok Sea Temperature in September

Average sea water temperature in September:
+85.2°F
Minimum sea water temperature in September: 88.5°F
Maximum sea water temperature in September: 82.9°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 84.9°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.4°F.

Monthly sea water temperature in Bangkok, °F

Which Thailand resorts have warmest sea in September?

Place name September 2025 September 2024
Hat Yai 86.0°F 85.8°F
Narathiwat 85.9°F 85.7°F
Ko Li Pe 85.8°F 85.7°F
Pattani 85.5°F 85.6°F
Cha-am 85.2°F 86.0°F
Hua Hin 85.2°F 86.0°F
Lamai Beach 85.1°F 85.8°F
Taling Ngam Beach 85.0°F 85.5°F
Chaweng Beach 85.0°F 85.7°F
Bangkok 84.9°F 85.8°F
Samui 84.9°F 85.6°F
Koh Lan 84.9°F 86.0°F
Koh Lanta 84.9°F 84.7°F
Choeng Mon Beach 84.9°F 85.6°F
Bo Phut Beach 84.9°F 85.5°F
Mae Nam Beach 84.9°F 85.5°F
Krabi 84.8°F 85.1°F
Phi Phi 84.8°F 85.0°F
Pattaya 84.8°F 85.7°F
Ko Phangan 84.7°F 85.4°F

Best time for vacation in Bangkok

Sunniest months:
March 25 days
January 23 days
April 23 days
Warmest months:
April 96.9 °F
May 96.0 °F
March 94.8 °F
Warmest sea temp:
May 87.7 °F
June 86.8 °F
April 86.6 °F
Coldest months:
December 88.8 °F
November 89.2 °F
October 89.6 °F
Rainiest months:
October 13 days
September 11 days
August 9 days
Windiest months:
April 10.0 mph
March 9.8 mph
May 9.0 mph

Bangkok on a weather map

Bangkok
+81°F
S 7 mph
Feels like: +81°F
Precip.: 0%
Places in Thailand:
Name
°F
+81°F
+79°F
+79°F
+79°F
+81°F
+79°F
+79°F
+79°F
+81°F
+79°F
+79°F
+81°F
+79°F
+75°F
24 Hours Forecast
Bangkok
Local time: 09:07
December 22, monday
1200
88°F
SW
6 mph
1500
91°F
SW
5 mph
1800
90°F
SW
3 mph
2100
84°F
S
6 mph
December 23, tuesday
0000
84°F
SW
2 mph
0300
81°F
SE
6 mph
0600
79°F
SE
6 mph
0900
81°F
SE
5 mph
Units of measurement: °C / °F