Key Biscayne, FL Weather


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The most pleasant months of the year for Key Biscayne are March, November and December. In Key Biscayne, there are 8 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Key Biscayne with an average high temperature of 88.6°, which ranks it as one of the coolest places in Florida. Any measurable snowfall is a rare occurance in Key Biscayne. The humidity here has been described as oppressive or miserable in the summer.

Today's Weather - Key Biscayne, FL

6 PM PST

Mostly Clear

75°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Clear73° / 79°E 9 to 15 mph
Thursday NightMostly Clear74° / 79°E 16 mph
Friday NightMostly Clear75° / 79°E 20 to 26 mph
Saturday NightMostly Clear75° / 79°E 22 to 26 mph
Sunday NightMostly Clear75° / 79°E 21 mph
Monday NightMostly Clear75° / 79°E 18 mph
Tuesday NightMostly Clear74° / 80°E 16 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 62
Rain: averages 53 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Key Biscayne area is 2.9 (10=best), which means it is less comfortable than most places in Florida.

2.9 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January74° 62°
February76° 64°
March77° 66°
April80° 69°
May83° 74°
June86° 77°
July88° 78°
August89° 78°
September87° 78°
October84° 75°
November80° 70°
December76° 65°
Hot, Freezing, Rainy, Snowy Days: Key Biscayne
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0070
February0060
March0070
April0070
May1090
June20160
July60140
August70150
September20160
October00120
November0090
December0070

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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