The weather in Manaus in September is very hot. The average temperatures are between 24°C and 37°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Manaus during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Manaus in September 2025.
If you’re planning to visit Manaus in the near future, we highly recommend that you review the 14 day weather forecast for Manaus before you arrive.
Temperatures
37° / 24°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
70
mm
Sun Hours
11.6
Hrs
