Sapa Weather in September
What's the weather like in Sapa (Autonomous Region in Muslim Mindanao) in September 2025?
The climate in Sapa during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Sapa and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 23°C (73°F) is normal.
| Daytime temperature | 30.2°C 86.4°F |
|---|---|
| Nightly temperature | 22.6°C 72.7°F |
| Average temperature | 26.4°C 79.5°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 159 mm 6.2 ins |
| Rainy days | 14 days |
| Sea temperature | 29.2°C 84.5°F |
| Humidity | 82% |
| Windspeed | 6.5kph 4 mph |
On average September is the 4th driest month of the year in Sapa with around 159mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
September temperatures in Sapa
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sapa in September 2025.
Other monthly averages
Best places to visit in September
Sapa weather stats
| Hottest month: | May | 30.8°C 87.4°F |
|---|---|---|
| Driest month: | March | 128mm 5ins |
| Sunniest month: | April | 8hrs |
| Coldest month: | July | 29.7°C 85.5°F |
| Wettest month: | October | 224mm 8.8ins |
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