Kanchanaburi weather in September
September in Kanchanaburi: hot, soaked, with clean air — a gamble, with 23 rainy days.
#12 of 12 months in Kanchanaburi · #827 of 897 destinations to visit in September · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Kanchanaburi in September
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Kanchanaburi climate normals — September
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Rainfall | 210 mm / 8.3 in | ⛈ soaked |
| Rainy days | 23 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 23°C / 74°F | |
| Sunshine | 7.5 h/day | |
| Daylight | 12.2 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Kanchanaburi in September — FAQ
- Is September a good time to visit Kanchanaburi?
- September in Kanchanaburi: hot, soaked, with clean air — a gamble, with 23 rainy days. It ranks #12 of 12 months for Kanchanaburi on SeasonMap's comfort score (56/100).
- What is the weather like in Kanchanaburi in September?
- In September, Kanchanaburi averages a daily high of 31°C and a low of 24.5°C, with about 209.9 mm of rain over roughly 22.8 rainy days.
- What is the air quality in Kanchanaburi in September?
- Kanchanaburi has a mean US Air Quality Index of about 31 in September.