Không Weather in September
What's the weather like in Không (Champasak) in September 2025?
The climate in Không during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Không and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 24°C (74°F) is normal.
| Daytime temperature | 30.2°C 86.3°F |
|---|---|
| Nightly temperature | 23.5°C 74.2°F |
| Average temperature | 26.8°C 80.2°F |
| Daily sunshine | 5.6 hrs |
| Avg rainfall | 312 mm 12.3 ins |
| Rainy days | 19 days |
| Sea temperature | 29.1°C 84.3°F |
| Humidity | 87% |
| Windspeed | 6.5kph 4 mph |
On average September is the 3rd wettest month of the year in Không with around 312mm 12.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.6 hours of sunshine per day.
September temperatures in Không
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 Không in September 2025.
Other monthly averages
Best places to visit in September
Không weather stats
| Hottest month: | April | 34.6°C 94.3°F |
|---|---|---|
| Driest month: | January | 3mm 0.1ins |
| Sunniest month: | January | 9.1hrs |
| Coldest month: | January | 30.4°C 86.7°F |
| Wettest month: | August | 372mm 14.6ins |
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