Key Largo weather in August 2025

Expect 32°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Key Largo in August. Check more long-term weather averages for Key Largo in August before you book your next holiday to Florida in 2025/2026.

  • 32°C maximum daytime temperature in August in Key Largo32
    32°C max day temperature
  • 9 hours of sunshine per day
  • 17 days with some rainfall in August in Key Largo17
    17 days with some rainfall
  • 23°C minimum night-time temperature in August in Key Largo23
    23°C min night temperature
  • 13 hours of daylight per day in August in Key Largo13
    13 hours of daylight per day
  • Very high heat & humidity in August in Key LargoVH
    Very High heat & humidity
  • 166 mm monthly rainfall in August in Key Largo166
    166 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Key Largo11
    11 (Extreme) UV index
  • 30°C sea temperature in August in Key Largo30
    30°C sea temperature

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The August weather guide for Florida (Key Largo) 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 Florida

How hot is it in Key Largo in August?

Daytime temperatures usually reach 32°C in Key Largo in August with very high heat and humidity, falling to 23°C at night.

How sunny is it in Key Largo in August?

There are normally 9 hours of bright sunshine each day in Key Largo in August - that's 72% of daylight hours.

How warm is the sea around Key Largo in August?

The average sea temperature around Key Largo in August is 30°C.

Does it rain in Key Largo in August?

There are usually 17 days with some rain in Key Largo in August and the average monthly rainfall is 166mm.

What is the chance of a hurricane in Key Largo in August?

On average less than 1 day in August in Key Largo is likely to be affected by the passage of one or more tropical storms.

Key Largo August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:49 19:06
Saturday, 16th August 2025 05:56 18:55
Sunday, 31st August 2025 06:02 18:41

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