Manaus weather in December 2025

Expect daytime maximum temperatures of 90°F in Manaus, Brazil in December and very high heat and humidity based on long-term weather averages. There are 4 hours of sunshine per day on average with 25 days with some rainfall and typically 8.8 inches of rainfall in the month.

  • 90°F maximum daytime temperature in December in Manaus90
    90°F max day temperature
  • 4 hours of sunshine per day
  • 25 days with some rainfall in December in Manaus25
    25 days with some rainfall
  • 75°F minimum night-time temperature in December in Manaus75
    75°F min night temperature
  • 12 hours of daylight per day in December in Manaus12
    12 hours of daylight per day
  • Very high heat & humidity in December in ManausVH
    Very High heat & humidity
  • 8.8 inches monthly rainfall in December in Manaus8.8
    8.8 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Manaus11
    11+ (Extreme) UV index

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The December weather guide for Brazil (Manaus) 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)  |  Imperial (°F)

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How hot is it in Manaus in December?

Daytime temperatures usually reach 90°F in Manaus in December with very high heat and humidity, falling to 75°F at night.

How sunny is it in Manaus in December?

There are normally 4 hours of bright sunshine each day in Manaus in December - that's 34% of daylight hours.

Does it rain in Manaus in December?

There are usually 25 days with some rain in Manaus in December and the average monthly rainfall is 8.8 inches.

Manaus December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:41 17:58
Tuesday, 16th December 2025 05:47 18:05
Wednesday, 31st December 2025 05:54 18:12

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