Iguazu Falls weather in January 2026

Expect daytime maximum temperatures of 90°F in Iguazu Falls, Argentina in January and very high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 6.5 inches of rainfall in the month.

  • 90°F maximum daytime temperature in January in Iguazu Falls90
    90°F max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in January in Iguazu Falls10
    10 days with some rainfall
  • 68°F minimum night-time temperature in January in Iguazu Falls68
    68°F min night temperature
  • 14 hours of daylight per day in January in Iguazu Falls14
    14 hours of daylight per day
  • Very high heat & humidity in January in Iguazu FallsVH
    Very High heat & humidity
  • 6.5 inches monthly rainfall in January in Iguazu Falls6.5
    6.5 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Iguazu Falls11
    11+ (Extreme) UV index

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The January 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)  |  Imperial (°F)

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How hot is it in Iguazu Falls in January?

Daytime temperatures usually reach 84°F in Iguazu Falls in January with moderate heat and humidity, falling to 68°F at night.

How sunny is it in Iguazu Falls in January?

There are normally 9 hours of bright sunshine each day in Iguazu Falls in January - that's 60% of daylight hours.

How warm is the sea around Iguazu Falls in January?

The average sea temperature around Iguazu Falls in January is 75°F.

Does it rain in Iguazu Falls in January?

There are usually 8 days with some rain in Iguazu Falls in January and the average monthly rainfall is 4.2 inches.

Iguazu Falls January sunrise & sunset times

Browse the sunrise and sunset times for Iguazu Falls in January 2026. Select a month to view Iguazu Falls sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 05:50 19:33
Friday, 16th January 2026 06:01 19:34
Saturday, 31st January 2026 06:13 19:29

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