The climate in Jakarta during September can be summarized as hot, humid and reasonably dry.
September is in the spring in Jakarta and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 23°C (73°F) is normal.
|Daytime temperature||32.7°C 90.9°F|
|Nightly temperature||22.7°C 72.9°F|
|Average temperature||27.7°C 81.9°F|
|Daily sunshine||9.1 hrs|
|Avg rainfall||62 mm 2.4 ins|
|Rainy days||8 days|
|Sea temperature||27.8°C 82.1°F|
|Windspeed||8.3kph 5 mph|
On average September is the 3rd driest month of the year in Jakarta with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.1 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 Jakarta in September 2023.
|Hottest month:||October||32.7°C 90.9°F|
|Driest month:||August||53mm 2.1ins|
|Coldest month:||January||30.1°C 86.2°F|
|Wettest month:||January||418mm 16.5ins|