Shillong Weather in September
What's the weather like in Shillong (Meghālaya) in September 2025?
The climate in Shillong during September can be summarized as warm, humid and very wet.
September is in the fall / autumn in Shillong and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (75°F), whilst at night 18°C (64°F) is normal.
| Daytime temperature | 24.1°C 75.4°F |
|---|---|
| Nightly temperature | 17.5°C 63.5°F |
| Average temperature | 20.8°C 69.4°F |
| Daily sunshine | 4.7 hrs |
| Avg rainfall | 552 mm 21.7 ins |
| Rainy days | 14 days |
| Sea temperature | 26.8°C 80.2°F |
| Humidity | 88% |
| Windspeed | 4.7kph 3 mph |
On average September is the 5th wettest month of the year in Shillong with around 552mm 21.7 inches of rain making it a very 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 4.7 hours of sunshine per day.
September temperatures in Shillong
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 Shillong in September 2025.
Other monthly averages
Best places to visit in September
Shillong weather stats
| Hottest month: | August | 24.5°C 76.1°F |
|---|---|---|
| Driest month: | January | 13mm 0.5ins |
| Sunniest month: | December | 8.5hrs |
| Coldest month: | January | 15.9°C 60.6°F |
| Wettest month: | July | 1159mm 45.6ins |
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