The climate in Belém during September can be summarized as hot, humid and reasonably dry.
September is in the spring in Belém and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 30°C (85°F), whilst at night 19°C (67°F) is normal.
|Daytime temperature||29.5°C 85°F|
|Nightly temperature||19.2°C 66.5°F|
|Average temperature||24.3°C 75.7°F|
|Daily sunshine||8.1 hrs|
|Avg rainfall||45 mm 1.8 ins|
|Rainy days||15 days|
|Sea temperature||26.5°C 79.7°F|
|Windspeed||13kph 8 mph|
On average September is the 4th driest month of the year in Belém with around 45mm 1.8 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.1 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 Belém in September 2023.
Best places to visit in September
|Hottest month:||January||31.8°C 89.2°F|
|Driest month:||October||18mm 0.7ins|
|Coldest month:||July||26.9°C 80.4°F|
|Wettest month:||April||156mm 6.1ins|