Iguazu Falls weather in September 2025

Expect daytime maximum temperatures of 25°C in Iguazu Falls, Argentina in September based on long-term weather averages. There are 4 hours of sunshine per day on average with typically 134 mm of rainfall in the month.

  • 25°C maximum daytime temperature in September in Iguazu Falls25
    25°C max day temperature
  • 4 hours of sunshine per day
  • 9 days with some rainfall in September in Iguazu Falls9
    9 days with some rainfall
  • 13°C minimum night-time temperature in September in Iguazu Falls13
    13°C 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
  • 134 mm monthly rainfall in September in Iguazu Falls134
    134 mm 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Iguazu Falls in September?

Daytime temperatures usually reach 25°C in Iguazu Falls in September with low heat and humidity, falling to 13°C 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 134mm.

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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