Boa Vista weather in December 2025

Expect daytime maximum temperatures of 91°F in Boa Vista, Brazil in December and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall.

  • 91°F maximum daytime temperature in December in Boa Vista91
    91°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in Boa Vista12
    12 days with some rainfall
  • 73°F minimum night-time temperature in December in Boa Vista73
    73°F min night temperature
  • 12 hours of daylight per day in December in Boa Vista12
    12 hours of daylight per day
  • Very high heat & humidity in December in Boa VistaVH
    Very High heat & humidity
  • 1.4 inches monthly rainfall in December in Boa Vista1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Boa Vista11
    11+ (Extreme) UV index

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The December weather guide for Brazil (Boa Vista) 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 Boa Vista in December?

Daytime temperatures usually reach 91°F in Boa Vista in December with very high heat and humidity, falling to 73°F at night.

How sunny is it in Boa Vista in December?

There are normally 7 hours of bright sunshine each day in Boa Vista in December - that's 61% of daylight hours.

Does it rain in Boa Vista in December?

There are usually 12 days with some rain in Boa Vista in December and the average monthly rainfall is 1.4 inches.

Boa Vista December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:53 17:51
Tuesday, 16th December 2025 06:00 17:57
Wednesday, 31st December 2025 06:07 18:05

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