Mar del Plata weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Mar del Plata in September. Check more long-term weather averages for Mar del Plata in September before you book your next holiday to Argentina in 2025/2026.

  • 16°C maximum daytime temperature in September in Mar del Plata16
    16°C max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in September in Mar del Plata7
    7 days with some rainfall
  • 5°C minimum night-time temperature in September in Mar del Plata5
    5°C min night temperature
  • 12 hours of daylight per day in September in Mar del Plata12
    12 hours of daylight per day
  • No heat & humidity in September in Mar del Plata0
    No heat & humidity
  • 58 mm monthly rainfall in September in Mar del Plata58
    58 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Mar del Plata5
    5 (Moderate) UV index
  • 10°C sea temperature in September in Mar del Plata10
    10°C sea temperature

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The September weather guide for Argentina (Mar del Plata) 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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More about Argentina

How warm is it in Mar del Plata in September?

Daytime temperatures usually reach 16°C in Mar del Plata in September, falling to 5°C at night.

How sunny is it in Mar del Plata in September?

There are normally 7 hours of bright sunshine each day in Mar del Plata in September - that's 56% of daylight hours.

Is the sea cold around Mar del Plata in September?

The average sea temperature around Mar del Plata in September is 10°C.

Does it rain in Mar del Plata in September?

There are usually 7 days with some rain in Mar del Plata in September and the average monthly rainfall is 58mm.

Mar del Plata September sunrise & sunset times

Browse the sunrise and sunset times for Mar del Plata in September 2025. Select a month to view Mar del Plata sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 07:11 18:29
Monday, 15th September 2025 06:50 18:41
Tuesday, 30th September 2025 06:27 18:54

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