Thailand · Koh Samui
Coral Cove Beach
Sea
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Air
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UV
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More like this
Climate · monthly averages
Sea temperature by month
30-year averages (1996–2025). Min/Max are typical daily lows and highs, not record extremes.
75°F
79°F
82°F
86°F
90°F
93°F
January
82.0°F(80°F–84°F)
February
82.9°F(82°F–84°F)
March
84.7°F(84°F–86°F)
April
86.6°F(86°F–88°F)
May
87.1°F(86°F–89°F)
June
86.3°F(85°F–87°F)
July
85.5°F(85°F–87°F)
August
85.0°F(84°F–86°F)
September
85.0°F(84°F–86°F)
October
84.7°F(84°F–86°F)
November
83.9°F(83°F–85°F)
December
82.5°F(81°F–84°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 | 8080.0 | 8281.5 | 8483.6 | 8685.5 | 8685.6 | 8584.9 | 8584.5 | 8484.1 | 8484.1 | 8483.6 | 8382.6 | 8180.8 |
| AvgAvg °F | 8282.0 | 8382.9 | 8584.7 | 8786.6 | 8787.1 | 8686.3 | 8685.5 | 8585.0 | 8585.0 | 8584.7 | 8483.9 | 8282.5 |
| MaxMax °F | 8483.9 | 8484.0 | 8685.7 | 8887.9 | 8988.6 | 8787.2 | 8786.7 | 8686.3 | 8685.8 | 8685.7 | 8584.9 | 8484.0 |
Warmest in May (87.1°F). Coldest in January (82.0°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.