World Resorts Thailand Koh Chang Weather

Koh Chang sea water temperature

Current sea water temperature:
+82.2°F
Minimum sea water temperature in December: 87.3°F
Maximum sea water temperature in December: 80.8°F
Average sea water temperature in December: 83.7°F

Sea water temperature for the last 10 days:

December 4 82.2°F November 29 82.0°F
December 3 81.5°F November 28 82.6°F
December 2 80.8°F November 27 82.4°F
December 1 80.8°F November 26 83.1°F
November 30 81.5°F November 25 82.2°F

When is the warmest sea in Koh Chang?

Based on the data about daily sea water temperature for the last three years the warmest sea in Koh Chang was noticed in May, April and June.

Monthly Sea Temperatures in Koh Chang, °F

Sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 87.7°F. The highest and lowest sea temperatures during the month were 89.2°F and 86.5°F.

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 86.8°F. The highest and lowest sea temperatures during the month were 88.9°F and 84.9°F.

Sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 85.6°F. The highest and lowest sea temperatures during the month were 87.6°F and 84.4°F.

Best time for vacation in Koh Chang

Sunniest months:
January 22 days
December 21 days
February 17 days
Warmest months:
May 88.9 °F
April 88.3 °F
June 87.1 °F
Warmest sea temp:
May 87.7 °F
April 87.1 °F
June 85.8 °F
Coldest months:
January 84.7 °F
September 85.1 °F
December 85.3 °F
Rainiest months:
July 22 days
August 21 days
June 20 days
Windiest months:
July 11.1 mph
August 10.3 mph
June 9.9 mph

Koh Chang on a weather map

Koh Chang
+81°F
SW 6 mph
Feels like: +86°F
Precip.: 0%
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
Koh Chang
Local time: 10:54
December 05, friday
1200
81°F
SW
6 mph
1500
82°F
NE
8 mph
1800
81°F
E
6 mph
2100
81°F
W
1 mph
December 06, saturday
0000
81°F
SW
4 mph
0300
79°F
SW
5 mph
0600
79°F
SW
7 mph
0900
79°F
SW
7 mph
Units of measurement: °C / °F