What’s the climate like in Key Biscayne?
The current climate of Key Biscayne features average monthly temperatures ranging from highs of 33°C during the day to lows of 25°C. 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.
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.
On average, Key Biscayne receives 2429 mm of precipitation each year. For comparison, London gets 701 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 good 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.
Climate Table of Key Biscayne
The climate table of Key Biscayne shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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.
- Average yearly temperature: 30°C
- Highest temperature: 33°C in July and August
- Lowest temperature: 25°C in January
- Precipitation: 2429 mm per year, averaging 202 mm per month
- Driest months: 41 mm in March, 78 mm in January and 94 mm in February
- Wettest months: 390 mm in August, 363 mm in September and 358 mm in June
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Table of Contents
Average Temperature per Month in Key Biscayne
This graph shows the average maximum temperatures per month in Key Biscayne, Florida. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Key Biscayne
This graph shows how much precipitation Key Biscayne, Florida, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Key Biscayne
This graph 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.
Yearly Temperature in Key Biscayne
This graph shows the average yearly temperature in Key Biscayne, Florida. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Key Biscayne
This chart shows the total yearly precipitation in Key Biscayne, Florida, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
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.
