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United StatesThe climate of Key Biscayne
The current climate in Key Biscayne features temperatures ranging from a high of 33°C to a low of 25°C throughout the year. The average yearly temperature is around 30°C. At night, temperatures in the colder months average around 16°C and in the warmer months around 26°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Key Biscayne, Florida.
Temperature records
The highest temperature recorded in Key Biscayne in recent years was 37°C in July 2023. The lowest daytime temperature recorded was 9°C in December 2022.
Rainfall amount
On average, Key Biscayne receives 2429 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
The hurricane season in Key Biscayne runs from June to November.
Best time to visit Key Biscayne?
The best time to visit Key Biscayne for sunny weather is January through March and November. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Key Biscayne. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Key Biscayne
The climate table of Key Biscayne shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 25 | 27 | 28 | 30 | 31 | 32 | 33 | 33 | 32 | 31 | 28 | 27 |
| Temp. min (°C) | 17 | 19 | 20 | 22 | 24 | 26 | 26 | 26 | 26 | 25 | 21 | 19 |
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| Precipitation (mm) | 78 | 94 | 41 | 127 | 234 | 358 | 293 | 390 | 363 | 217 | 108 | 126 |
| UV Index | 5 | 6 | 6 | 6 | 7 | 6 | 6 | 6 | 6 | 4 | 5 | 3 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Key Biscayne, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Key Biscayne
Yearly Temperature in Key Biscayne
Precipitation charts
These charts show the average amount of precipitation in Key Biscayne, 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.
Average Precipitation per Month in Key Biscayne
Total Yearly Precipitation in Key Biscayne
UV index chart
This chart shows the average UV index per month in Key Biscayne, Florida. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Key Biscayne
Weather experiences 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.