Iguazu Falls weather in December 2025

Expect daytime maximum temperatures of 32°C in Iguazu Falls, Argentina in December and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 134 mm of rainfall in the month.

  • 32°C maximum daytime temperature in December in Iguazu Falls32
    32°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in December in Iguazu Falls8
    8 days with some rainfall
  • 19°C minimum night-time temperature in December in Iguazu Falls19
    19°C min night temperature
  • 14 hours of daylight per day in December in Iguazu Falls14
    14 hours of daylight per day
  • High heat & humidity in December in Iguazu FallsH
    High heat & humidity
  • 134 mm monthly rainfall in December in Iguazu Falls134
    134 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Iguazu Falls11
    11+ (Extreme) UV index

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The December weather guide for Argentina (Iguazu Falls) 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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How hot is it in Iguazu Falls in December?

Daytime temperatures usually reach 32°C in Iguazu Falls in December with high heat and humidity, falling to 19°C at night.

How sunny is it in Iguazu Falls in December?

There are normally 7 hours of bright sunshine each day in Iguazu Falls in December - that's 53% of daylight hours.

Does it rain in Iguazu Falls in December?

There are usually 8 days with some rain in Iguazu Falls in December and the average monthly rainfall is 134mm.

Iguazu Falls December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:38 19:16
Tuesday, 16th December 2025 05:42 19:26
Wednesday, 31st December 2025 05:50 19:32

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