Montevideo weather in August 2025

Expect daytime maximum temperatures of 61°F in Montevideo, Uruguay in August based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 3.0 inches of rainfall in the month.

  • 61°F maximum daytime temperature in August in Montevideo61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 9 days with some rainfall in August in Montevideo9
    9 days with some rainfall
  • 45°F minimum night-time temperature in August in Montevideo45
    45°F min night temperature
  • 11 hours of daylight per day in August in Montevideo11
    11 hours of daylight per day
  • No heat & humidity in August in Montevideo0
    No heat & humidity
  • 3.0 inches monthly rainfall in August in Montevideo3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Montevideo4
    4 (Moderate) UV index
  • 52°F sea temperature in August in Montevideo52
    52°F sea temperature

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The August weather guide for Uruguay (Montevideo) 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 warm is it in Montevideo in August?

Daytime temperatures usually reach 61°F in Montevideo in August, falling to 45°F at night.

How sunny is it in Montevideo in August?

There are normally 5 hours of bright sunshine each day in Montevideo in August - that's 50% of daylight hours.

How warm is the sea around Montevideo in August?

The average sea temperature around Montevideo in August is 52°F.

Does it rain in Montevideo in August?

There are usually 9 days with some rain in Montevideo in August and the average monthly rainfall is 3.0 inches.

Montevideo August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:39 18:04
Saturday, 16th August 2025 07:24 18:15
Sunday, 31st August 2025 07:05 18:26

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