Bangkok, Thailand: Annual Weather Averages
April is the hottest month in Bangkok with an average temperature of 30.5°C (87°F) and the coldest is December at 26°C (79°F) with the most daily sunshine hours at 9 in December. The wettest month is September with an average of 220mm 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: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 27 | 28 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 29 | 28 | 26 |
| °F | 80 | 82 | 85 | 87 | 86 | 85 | 85 | 85 | 83 | 83 | 82 | 79 |
Average High/Low Temperature: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 32 | 33 | 34 | 35 | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 31 |
| Low °C | 21 | 23 | 25 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 21 |
| High °F | 90 | 91 | 93 | 95 | 93 | 91 | 91 | 91 | 90 | 90 | 88 | 88 |
| Low °F | 70 | 73 | 77 | 79 | 79 | 79 | 79 | 79 | 77 | 77 | 75 | 70 |
Average Day/Night Temperature: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 27 | 29 | 31 | 32 | 32 | 31 | 30 | 30 | 29 | 30 | 30 | 28 |
| Night °C | 26 | 28 | 29 | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 28 | 27 |
| Day °F | 81 | 84 | 88 | 89 | 89 | 87 | 87 | 86 | 85 | 85 | 85 | 82 |
| Night °F | 79 | 82 | 85 | 86 | 86 | 84 | 83 | 83 | 83 | 83 | 83 | 80 |
Average Rainfall: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 10 | 10 | 50 | 110 | 180 | 180 | 180 | 170 | 220 | 190 | 40 | 10 |
| Days | 2 | 2 | 5 | 8 | 17 | 18 | 19 | 21 | 22 | 16 | 5 | 2 |
Average Daily Sunshine Hours: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 9 | 8 | 9 | 8 | 8 | 6 | 5 | 5 | 5 | 6 | 8 | 9 |
Average Sea Temperature: Bangkok
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 |
| °F | 82 | 82 | 84 | 86 | 86 | 86 | 86 | 84 | 84 | 84 | 84 | 82 |
