The climate in Darhan during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Darhan and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 3°C (38°F) is normal.
| Daytime temperature | 17.7°C 63.8°F |
|---|---|
| Nightly temperature | 3.4°C 38°F |
| Average temperature | 10.5°C 50.9°F |
| Daily sunshine | 8.4 hrs |
| Avg rainfall | 41 mm 1.6 ins |
| Rainy days | 9 days |
| Sea temperature | 14.1°C 57.3°F |
| Humidity | 62% |
| Windspeed | 7.6kph 5 mph |
On average September is the 4th wettest month of the year in Darhan with around 41mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.4 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 Darhan in September 2025.
Best places to visit in September
| Hottest month: | July | 25.2°C 77.4°F |
|---|---|---|
| Driest month: | February | 4mm 0.2ins |
| Sunniest month: | March | 8.5hrs |
| Coldest month: | January | -16.7°C 1.9°F |
| Wettest month: | July | 92mm 3.6ins |