Jember Weather in September
What's the weather like in Jember (East Java) in September 2025?
The climate in Jember during September can be summarized as hot, humid and a little damp.
September is in the spring in Jember and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 30.8°C 87.4°F |
|---|---|
| Nightly temperature | 19.4°C 66.9°F |
| Average temperature | 25.1°C 77.2°F |
| Daily sunshine | 10.6 hrs |
| Avg rainfall | 89 mm 3.5 ins |
| Rainy days | 2 days |
| Sea temperature | 26.8°C 80.2°F |
| Humidity | 73% |
| Windspeed | 14kph 9 mph |
On average September is the 4th driest month of the year in Jember with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.6 hours of sunshine per day.
September temperatures in Jember
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 Jember in September 2025.
Other monthly averages
Best places to visit in September
Jember weather stats
| Hottest month: | November | 30.8°C 87.4°F |
|---|---|---|
| Driest month: | August | 44mm 1.7ins |
| Sunniest month: | August | 10.6hrs |
| Coldest month: | July | 29.3°C 84.7°F |
| Wettest month: | January | 433mm 17ins |
© Google