Sao Luis weather in August 2025

Expect daytime maximum temperatures of 88°F in Sao Luis, Brazil in August and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 88°F maximum daytime temperature in August in Sao Luis88
    88°F max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in August in Sao Luis9
    9 days with some rainfall
  • 73°F minimum night-time temperature in August in Sao Luis73
    73°F min night temperature
  • 12 hours of daylight per day in August in Sao Luis12
    12 hours of daylight per day
  • Very high heat & humidity in August in Sao LuisVH
    Very High heat & humidity
  • 1.4 inches monthly rainfall in August in Sao Luis1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Sao Luis11
    11 (Extreme) UV index
  • 81°F sea temperature in August in Sao Luis81
    81°F sea temperature

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The August weather guide for Brazil (Sao Luis) 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 Sao Luis in August?

Daytime temperatures usually reach 88°F in Sao Luis in August with very high heat and humidity, falling to 73°F at night.

How sunny is it in Sao Luis in August?

There are normally 9 hours of bright sunshine each day in Sao Luis in August - that's 71% of daylight hours.

How warm is the sea around Sao Luis in August?

The average sea temperature around Sao Luis in August is 81°F.

Does it rain in Sao Luis in August?

There are usually 9 days with some rain in Sao Luis in August and the average monthly rainfall is 1.4 inches.

Sao Luis August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:03 18:04
Saturday, 16th August 2025 06:01 18:02
Sunday, 31st August 2025 05:56 17:59

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