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Climate month by month
Official 30-year averages (1991–2020) measured by the Thai Meteorological Department at its Kanchanaburi station. Source (TMD, PDF)
| Month | Day / Night | Rainfall | Rainy days | Humidity | Years of data |
|---|---|---|---|---|---|
| January | 33.0°C / 20.4°C | 8 mm | 1 | 65% | 30 |
| February | 35.3°C / 22.1°C | 18 mm | 2 | 63% | 30 |
| March | 37.0°C / 24.3°C | 39 mm | 3 | 63% | 30 |
| April | 38.0°C / 25.6°C | 66 mm | 5 | 63% | 30 |
| May | 36.3°C / 25.7°C | 139 mm | 13 | 70% | 30 |
| June | 34.8°C / 25.3°C | 99 mm | 14 | 72% | 30 |
| July | 33.9°C / 24.9°C | 106 mm | 15 | 73% | 30 |
| August | 33.8°C / 24.8°C | 101 mm | 16 | 74% | 30 |
| September | 33.7°C / 24.5°C | 219 mm | 18 | 77% | 30 |
| October | 32.4°C / 23.7°C | 206 mm | 15 | 79% | 30 |
| November | 32.1°C / 22.3°C | 45 mm | 5 | 72% | 30 |
| December | 31.7°C / 20.3°C | 7 mm | 1 | 66% | 30 |
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