Belem weather in September 2025

Expect 32°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Belem in September. Check more long-term weather averages for Belem in September before you book your next holiday to Brazil in 2025/2026.

  • 32°C maximum daytime temperature in September in Belem32
    32°C max day temperature
  • 8 hours of sunshine per day
  • 22 days with some rainfall in September in Belem22
    22 days with some rainfall
  • 22°C minimum night-time temperature in September in Belem22
    22°C min night temperature
  • 12 hours of daylight per day in September in Belem12
    12 hours of daylight per day
  • Very high heat & humidity in September in BelemVH
    Very High heat & humidity
  • 112 mm monthly rainfall in September in Belem112
    112 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Belem11
    11+ (Extreme) UV index
  • 28°C sea temperature in September in Belem28
    28°C sea temperature

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The September weather guide for Brazil (Belem) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Brazil

How hot is it in Belem in September?

Daytime temperatures usually reach 32°C in Belem in September with very high heat and humidity, falling to 22°C at night.

How sunny is it in Belem in September?

There are normally 8 hours of bright sunshine each day in Belem in September - that's 64% of daylight hours.

How warm is the sea around Belem in September?

The average sea temperature around Belem in September is 28°C.

Does it rain in Belem in September?

There are usually 22 days with some rain in Belem in September and the average monthly rainfall is 112mm.

Belem September sunrise & sunset times

Browse the sunrise and sunset times for Belem in September 2025. Select a month to view Belem sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:11 18:16
Monday, 15th September 2025 06:06 18:12
Tuesday, 30th September 2025 06:00 18:07

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