The climate in Chittagong during September can be summarized as very hot, humid and very wet.
September is in the fall / autumn in Chittagong and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 25°C (77°F) is normal.
|Daytime temperature||31.1°C 88°F|
|Nightly temperature||24.9°C 76.8°F|
|Average temperature||28°C 82.4°F|
|Daily sunshine||4 hrs|
|Avg rainfall||277 mm 10.9 ins|
|Rainy days||14 days|
|Sea temperature||29°C 84.3°F|
|Windspeed||4.7kph 3 mph|
On average September is the 4th wettest month of the year in Chittagong with around 277mm 10.9 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 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 Chittagong in September 2021.
|Hottest month:||May||32.2°C 90°F|
|Driest month:||January||6mm 0.2ins|
|Coldest month:||January||25.4°C 77.7°F|
|Wettest month:||July||745mm 29.3ins|