The climate in Sakon Nakhon during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Sakon Nakhon and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (74°F) is normal.
Daytime temperature | 30.8°C 87.4°F |
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Nightly temperature | 23.5°C 74.2°F |
Average temperature | 27.1°C 80.8°F |
Daily sunshine | 6 hrs |
Avg rainfall | 237 mm 9.3 ins |
Rainy days | 18 days |
Sea temperature | 29.2°C 84.5°F |
Humidity | 82% |
Windspeed | 3.6kph 2 mph |
On average September is the 3rd wettest month of the year in Sakon Nakhon with around 237mm 9.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
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 Sakon Nakhon in September 2025.
Best places to visit in September
Hottest month: | April | 34.2°C 93.6°F |
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Driest month: | December | 2mm 0.1ins |
Sunniest month: | January | 9.7hrs |
Coldest month: | December | 27.9°C 82.2°F |
Wettest month: | August | 356mm 14ins |