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Normal weather for Key Biscayne in August

It's hot in August in Key Biscayne 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 28°C.

In August, there is an average of 390 mm of precipitation, spread over 27 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Key Biscayne in August

New York
Temperature Average Temperature
33°C 30°C
Sun High Temp
34°C 31°C
Sun Low Temp
32°C 28°C
Rain Total Precipitation
390 mm 79 mm
Rain Rainy Days
27 days 13 days

Start of August

The month of August starts in Key Biscayne with hot temps, averaging around 33°C during the day and nights around 26°C. There are plenty of days with a good chance of precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

Mid August

By mid-August, daytime temps rise to around 34°C, with nights around 27°C. There’s a high chance of precipitation during this time. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

End of August

By the end of August, the average daytime temperature in Key Biscayne is around 33°C, while nighttime temps are about 27°C. There’s a significant chance of many days with precipitation. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is August a good time to visit Key Biscayne?

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

The hurricane season in Key Biscayne runs from June to November.

Temperature records for Key Biscayne in August

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

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Daily Temperature in August in Key Biscayne

This chart shows the average daily high and low temperatures in August for Key Biscayne, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in August in Key Biscayne

Daily Precipitation in August in Key Biscayne

The chart below shows the average daily precipitation in August for Key Biscayne, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 27 days of precipitation in Key Biscayne.

Daily Precipitation in August in Key Biscayne

Daily UV Index in August in Key Biscayne

This chart shows the average daily UV index in August in Key Biscayne, 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.

Daily UV Index in August in Key Biscayne

Temperature in August in Key Biscayne Over the Years

This chart shows the average temperature in August in Key Biscayne, measured in degrees Celsius, over the past few years.

Temperature in August in Key Biscayne Over the Years

Total Precipitation in August in Key Biscayne Over the Years

This chart shows the average precipitation in August in Key Biscayne, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in August in Key Biscayne Over the Years

Daily Climate in August for Key Biscayne

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

Weather experiences in August in Key Biscayne

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Average Weather in Key Biscayne by Month

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


Or check out the climate of Key Biscayne for all months at once

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