Climate almanac
Haikou
Hainan, China · 20.03°, 110.35°
What is the weather like in Haikou in September?
In September, Haikou is typically 86°F (30°C) during the day and 80°F (27°C) at night. The month brings about 8.2 in (208 mm) of precipitation in total.
- Average high86°F (30°C)
- Average low80°F (27°C)
- Precipitation8.2 in (208 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)