Nam Nao Weather in September
What's the weather like in Nam Nao (Phetchabun) in September 2025?
The climate in Nam Nao during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Nam Nao and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 21°C (71°F) is normal.
| Daytime temperature | 29.8°C 85.6°F |
|---|---|
| Nightly temperature | 21.4°C 70.5°F |
| Average temperature | 25.6°C 78.1°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 223 mm 8.8 ins |
| Rainy days | 19 days |
| Sea temperature | 28.9°C 84°F |
| Humidity | 82% |
| Windspeed | 3.2kph 2 mph |
On average September is the wettest month of the year in Nam Nao with around 223mm 8.8 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 5.5 hours of sunshine per day.
September temperatures in Nam Nao
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 Nam Nao in September 2025.
Other monthly averages
Best places to visit in September
Nam Nao weather stats
| Hottest month: | April | 33.9°C 93°F |
|---|---|---|
| Driest month: | December | 4mm 0.2ins |
| Sunniest month: | December | 9hrs |
| Coldest month: | December | 27.7°C 81.9°F |
| Wettest month: | September | 223mm 8.8ins |
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