Climate almanac
Si Chiang Mai
Nong Khai, Thailand · 17.96°, 102.59°
What is the weather like in Si Chiang Mai in September?
In September, Si Chiang Mai is typically 90°F (32°C) during the day and 78°F (25°C) at night. The month brings about 12 in (311 mm) of precipitation in total.
- Average high90°F (32°C)
- Average low78°F (25°C)
- Precipitation12 in (311 mm)
- Clear or mostly clear days3
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)