Sanibel Island weather in August 2024

Expect 91°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Sanibel Island in August. Check more long-term weather averages for Sanibel Island in August before you book your next holiday to Florida in 2024/2025.

  • 91°F maximum daytime temperature in August in Sanibel Island91
    91°F max day temperature
  • 9 hours of sunshine per day
  • 16 days with some rainfall in August in Sanibel Island16
    16 days with some rainfall
  • 75°F minimum night-time temperature in August in Sanibel Island75
    75°F min night temperature
  • 13 hours of daylight per day in August in Sanibel Island13
    13 hours of daylight per day
  • Very high heat & humidity in August in Sanibel IslandVH
    Very High heat & humidity
  • 8.8 inches monthly rainfall in August in Sanibel Island8.8
    8.8 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Sanibel Island11
    11 (Extreme) UV index
  • 86°F sea temperature in August in Sanibel Island86
    86°F sea temperature

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The August weather guide for Florida (Sanibel Island) 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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More about Florida

How hot is it in Sanibel Island in August?

Daytime temperatures usually reach 91°F in Sanibel Island in August with very high heat and humidity, falling to 75°F at night.

How sunny is it in Sanibel Island in August?

There are normally 9 hours of bright sunshine each day in Sanibel Island in August - that's 67% of daylight hours.

How warm is the sea around Sanibel Island in August?

The average sea temperature around Sanibel Island in August is 86°F.

Does it rain in Sanibel Island in August?

There are usually 16 days with some rain in Sanibel Island in August and the average monthly rainfall is 8.8 inches.

What is the chance of a hurricane in Sanibel Island in August?

On average 1.1 days in August in Sanibel Island are likely to be affected by the passage of one or more tropical storms.

Sanibel Island August sunrise & sunset times

Browse the sunrise and sunset times for Sanibel Island in August 2024. Select a month to view Sanibel Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st August 2024 06:54 20:15
Friday, 16th August 2024 07:01 20:03
Saturday, 31st August 2024 07:08 19:48

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