The weather in August in Sanibel

It's hot in August in Sanibel with an average temperature of 33°C. Temperatures this month range from a low of 32°C to a high of 34°C. At night, you can expect temperatures between 25°C and 26°C.

Looking for sun? August isn’t a good month to be in Sanibel. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Sanibel, Florida. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2014, Sanibel reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 26°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 29°C.

Rainfall amount

In August, there is an average of 245 mm of precipitation, spread over 25 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in August for Sanibel

Click on any day in August to get detailed info about the usual weather on that day in Sanibel. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Sanibel New York
Average temperature 33°C 30°C
Max. temperature 34°C 31°C
Min. temperature 25°C -5°C
Total precipitation 245 mm 79 mm
Rainy days 25 days 13 days

Start of August

The month of August starts in Sanibel with hot temps, averaging around 34°C during the day and nights around 26°C.

Mid August

By mid-August, daytime temps stay steady at around 34°C, with nights around 26°C. There’s a high chance of precipitation during this time.

End of August

By the end of August, the average daytime temperature in Sanibel is around 34°C, while nighttime temps are about 26°C. There’s a significant chance of many days with precipitation.

Find affordable trips to Sanibel

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

The hurricane season in Sanibel runs from June to November.

Check out the climate of Sanibel for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Sanibel, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Sanibel

Temperature in August in Sanibel over the years

Precipitation charts

These charts show the average amount of precipitation in August in Sanibel, Florida. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Sanibel

Total precipitation in August in Sanibel over the years

Daily UV index in August in Sanibel

This chart shows the average daily UV index in August in Sanibel, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in Sanibel

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Average weather in Sanibel by month

Click on a month below to see detailed weather info for Sanibel. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.