Ko Samet, Thailand: Annual Weather Averages
April is the hottest month in Ko Samet with an average temperature of 30°C (86°F) and the coldest is January at 28°C (82°F) with the most daily sunshine hours at 9 in December. The wettest month is September with an average of 248mm of rain. The best month to swim in the sea is in April when the average sea temperature is 30°C (86°F).
Average Temperature: Ko Samet
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| °F | 82 | 82 | 84 | 86 | 86 | 86 | 84 | 84 | 84 | 84 | 84 | 82 |
Average High/Low Temperature: Ko Samet
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 31 | 32 | 32 | 33 | 33 | 32 | 32 | 31 | 31 | 32 | 32 | 31 |
| Low °C | 21 | 24 | 26 | 27 | 27 | 28 | 26 | 26 | 25 | 24 | 23 | 20 |
| High °F | 88 | 90 | 90 | 91 | 91 | 90 | 90 | 88 | 88 | 90 | 90 | 88 |
| Low °F | 70 | 75 | 79 | 81 | 81 | 82 | 79 | 79 | 77 | 75 | 73 | 68 |
Average Rainfall: Ko Samet
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 17 | 40 | 65 | 66 | 190 | 149 | 133 | 128 | 248 | 216 | 84 | 4 |
| Days | 2 | 4 | 4 | 6 | 15 | 13 | 12 | 14 | 17 | 15 | 8 | 1 |
Average Daily Sunshine Hours: Ko Samet
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 9 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 9 |
Average Sea Temperature: Ko Samet
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| °F | 82 | 82 | 84 | 86 | 86 | 86 | 84 | 84 | 84 | 84 | 84 | 82 |
