Iguazu Falls weather in September 2025

Expect 77°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Iguazu Falls in September. Check more long-term weather averages for Iguazu Falls in September before you book your next holiday to Argentina in 2025/2026.

  • 77°F maximum daytime temperature in September in Iguazu Falls77
    77°F max day temperature
  • 4 hours of sunshine per day
  • 9 days with some rainfall in September in Iguazu Falls9
    9 days with some rainfall
  • 55°F minimum night-time temperature in September in Iguazu Falls55
    55°F min night temperature
  • 12 hours of daylight per day in September in Iguazu Falls12
    12 hours of daylight per day
  • Low heat & humidity in September in Iguazu FallsL
    Low heat & humidity
  • 5.3 inches monthly rainfall in September in Iguazu Falls5.3
    5.3 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Iguazu Falls9
    9 (Very High) UV index

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The September 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 September?

Daytime temperatures usually reach 77°F in Iguazu Falls in September with low heat and humidity, falling to 55°F at night.

How sunny is it in Iguazu Falls in September?

There are normally 4 hours of bright sunshine each day in Iguazu Falls in September - that's 36% of daylight hours.

Does it rain in Iguazu Falls in September?

There are usually 9 days with some rain in Iguazu Falls in September and the average monthly rainfall is 5.3 inches.

Iguazu Falls September sunrise & sunset times

Browse the sunrise and sunset times for Iguazu Falls in September 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 September 2025 06:50 18:26
Monday, 15th September 2025 06:35 18:31
Tuesday, 30th September 2025 06:18 18:37

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