Live Weather & Forecast
Weather in Key Biscayne
Florida, United States · Real-time conditions & 3-day outlook
25°C
Feels like 27°C
78°F / Feels 80°F
Partly cloudy
Key Biscayne, Florida
🌞 Daytime
Updated: 2026-04-12 10:30
Humidity
54%
Wind
32.8 km/h ENE
Wind Gust
39.7 km/h
Pressure
1024 mb
Visibility
16 km
UV Index
3.6
(Moderate)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
16.6°C
Wind Degree
70°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
128.9 μg/m³
NO₂
1.3 μg/m³
O₃
103 μg/m³
SO₂
1.1 μg/m³
PM 2.5
10.6 μg/m³
PM 10
16.5 μg/m³
Weather Alerts 1
Met
· Moderate · Expected
Rip Current Statement issued April 12 at 2:27AM EDT until April 13 at 8:00PM EDT by NWS Miami FL
* WHAT...Dangerous rip currents. * WHERE...Coastal Palm Beach County, Coastal Broward County and Coastal Miami Dade County. * WHEN...Through Monday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.
Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Today's Hourly Forecast
24-hour breakdown for Key Biscayne, Florida
12 AM
24°
Partly Cloudy
1 AM
24°
Clear
2 AM
24°
Clear
3 AM
24°
Clear
4 AM
24°
Clear
5 AM
24°
Partly Cloudy
6 AM
24°
Clear
7 AM
24°
Clear
8 AM
24°
Partly Cloudy
9 AM
24°
Sunny
10 AM
25°
Partly cloudy
11 AM
24°
Overcast
12 PM
26°
Sunny
1 PM
25°
Sunny
2 PM
25°
Sunny
3 PM
26°
Sunny
4 PM
26°
Sunny
5 PM
25°
Sunny
6 PM
24°
Overcast
7 PM
24°
Overcast
8 PM
23°
Clear
9 PM
23°
Overcast
10 PM
23°
Cloudy
11 PM
22°
Cloudy
3-Day Forecast
Daily overview for Key Biscayne, Florida
Today
Partly Cloudy
27°
/
22°
🌧️ 0% chance of rain
💧 Avg. humidity: 67%
💨 Max wind: 37.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.4
🌅 Sunrise: 07:00 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
22°
/
21°
🌧️ 0% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 34.9 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 2.7
🌅 Sunrise: 06:59 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Cloudy
23°
/
21°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 34.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.2
🌅 Sunrise: 06:59 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Key Biscayne
Plan your trip to Key Biscayne, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Key Biscayne?
Current conditions in Key Biscayne: Partly cloudy, temperature 25°C, humidity 54%.
What is the best time to visit Key Biscayne?
The best time to visit Key Biscayne is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Key Biscayne?
Key Biscayne is located at approximately 25.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Key Biscayne?
The wettest period in Key Biscayne is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Key Biscayne?
For visits to Key Biscayne during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Key Biscayne in?
Key Biscayne is located in United States, in the state of Florida.
What are the public holidays in Key Biscayne in 2026?
View the 2026 public holidays for Key Biscayne on our Holidays page.
What are the GPS coordinates used for the weather forecast in Key Biscayne?
The weather forecast for Key Biscayne uses coordinates 25.6968, -80.1635.