Rosario weather in January 2025

Expect 31°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Rosario in January. Check more long-term weather averages for Rosario in January before you book your next holiday to Argentina in 2025/2026.

  • 31°C maximum daytime temperature in January in Rosario31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in January in Rosario8
    8 days with some rainfall
  • 18°C minimum night-time temperature in January in Rosario18
    18°C min night temperature
  • 14 hours of daylight per day in January in Rosario14
    14 hours of daylight per day
  • High heat & humidity in January in RosarioH
    High heat & humidity
  • 119 mm monthly rainfall in January in Rosario119
    119 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Rosario11
    11+ (Extreme) UV index

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The January weather guide for Argentina (Rosario) 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 Rosario in January?

Daytime temperatures usually reach 31°C in Rosario in January with high heat and humidity, falling to 18°C at night.

How sunny is it in Rosario in January?

There are normally 9 hours of bright sunshine each day in Rosario in January - that's 67% of daylight hours.

Does it rain in Rosario in January?

There are usually 8 days with some rain in Rosario in January and the average monthly rainfall is 119mm.

Rosario January sunrise & sunset times

Browse the sunrise and sunset times for Rosario in January 2025. Select a month to view Rosario sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:58 20:15
Thursday, 16th January 2025 06:11 20:14
Friday, 31st January 2025 06:25 20:06

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