
Thailand · Koh Samui
Coral Cove Beach
Sea
87.6°F
Air
–
UV
–
Bathtub
Above 28°C
More like this
All beaches · ThailandClimate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
75°F
79°F
82°F
86°F
90°F
93°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
8181.4
8382.6
8483.6
8686.3
8786.6
8686.0
8585.3
8585.1
8584.9
8484.1
8383.2
8281.8
AvgAvg °F
8282.2
8383.2
8584.5
8786.8
8787.4
8686.4
8685.7
8685.7
8585.2
8585.1
8484.0
8282.5
MaxMax °F
8383.5
8484.0
8585.4
8887.8
8988.6
8787.0
8686.0
8686.5
8685.6
8685.9
8584.8
8383.4
Warmest in May (87.4°F). Coldest in January (82.2°F). Comfortable for swimming year-round.
About Coral Cove Beach
Coral Cove punctuates the southeast shore of Koh Samui, Thailand's second-largest island in the Gulf of Thailand, where a 150-metre crescent of fine sand sits crowded with rounded granite boulders – the same formation as the famous Hin Ta and Hin Yai rocks further south. Five kilometres north, Chaweng Beach runs six kilometres of resort strip and white sand, while Lamai Beach stretches mellower four kilometres south. The sea holds 28–29 °C from January through September, with Samui airport 25 minutes by Route 4169.






