Key Biscayne Weather Forecast 15 Days, Weather in Key Biscayne Today

Current weather conditions and 15 day weather forecast for Key Biscayne, Florida, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at Key Biscayne

27 July 2025 Sunday
31.1 ° C / 88°F
Partly cloudy
Partly cloudy
Feels Like : 40.2 ° C / 104.3°F
Humidity : % 63
Pressure : 1018 mb
Wind Speed : 17.3 kmph / 10.7 miles from ENEENE
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 75

15 day weather forecast for Key Biscayne, FL, USA

Weather Forecast for next 15 Days for Key Biscayne including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in Key Biscayne, Florida state, US. To see the daily forecast, scroll to the table below.
Date
27 July 2025 Sunday
Weather forecastCloudy  Cloudy
Low temperature27.3 ° C
(81.1°F)
High temperature31.9 ° C
(89.4°F)
Avg. temperature28.8 ° C
(83.8°F)
Humidity% 81
Chance of rain0%
UV Index2.7
Sun PositionSunrise:06:44 AM
Sunset: 08:09 PM
Moon PositionMoonrise:09:25 AM
Moonset: 10:15 PM
Moon Phase
( Waxing Crescent )
28 July 2025 Monday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature27.6 ° C
(81.7°F)
High temperature30.8 ° C
(87.4°F)
Avg. temperature28.9 ° C
(84.1°F)
Humidity% 83
Chance of rain0%
UV Index2.8
Sun PositionSunrise:06:45 AM
Sunset: 08:09 PM
Moon PositionMoonrise:10:20 AM
Moonset: 10:44 PM
Moon Phase
( Waxing Crescent )
29 July 2025 Tuesday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature27.8 ° C
(82°F)
High temperature31 ° C
(87.8°F)
Avg. temperature29 ° C
(84.3°F)
Humidity% 82
Chance of rain0%
UV Index2.8
Sun PositionSunrise:06:45 AM
Sunset: 08:08 PM
Moon PositionMoonrise:11:13 AM
Moonset: 11:13 PM
Moon Phase
( Waxing Crescent )
30 July 2025 Wednesday
Weather forecastOvercast  Overcast
Low temperature27.9 ° C
(82.2°F)
High temperature30.3 ° C
(86.6°F)
Avg. temperature29.1 ° C
(84.4°F)
Humidity% 74
Chance of rain0%
UV Index2.9
Sun PositionSunrise:06:46 AM
Sunset: 08:07 PM
Moon PositionMoonrise:12:05 PM
Moonset: 11:42 PM
Moon Phase
( Waxing Crescent )
31 July 2025 Thursday
Weather forecastPatchy rain nearby Patchy rain nearby
Low temperature28.7 ° C
(83.7°F)
High temperature30.3 ° C
(86.5°F)
Avg. temperature29.5 ° C
(85.1°F)
Humidity% 70
Chance of rain88%
UV Index0.1
Sun PositionSunrise:06:46 AM
Sunset: 08:07 PM
Moon PositionMoonrise:12:57 PM
Moonset: No moonset
Moon Phase
( Waxing Crescent )
01 August 2025 Friday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature28.8 ° C
(83.9°F)
High temperature30.3 ° C
(86.6°F)
Avg. temperature29.4 ° C
(85°F)
Humidity% 70
Chance of rain0%
UV Index7
Sun PositionSunrise:06:47 AM
Sunset: 08:06 PM
Moon PositionMoonrise:01:51 PM
Moonset: 12:13 AM
Moon Phase
( First Quarter )
02 August 2025 Saturday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature28.7 ° C
(83.7°F)
High temperature30.1 ° C
(86.1°F)
Avg. temperature29.4 ° C
(85°F)
Humidity% 69
Chance of rain0%
UV Index7
Sun PositionSunrise:06:47 AM
Sunset: 08:06 PM
Moon PositionMoonrise:02:46 PM
Moonset: 12:47 AM
Moon Phase
( Waxing Gibbous )
03 August 2025 Sunday
Weather forecastSunny Sunny
Low temperature28.9 ° C
(84.1°F)
High temperature30.3 ° C
(86.6°F)
Avg. temperature29.6 ° C
(85.2°F)
Humidity% 68
Chance of rain0%
UV Index7
Sun PositionSunrise:06:48 AM
Sunset: 08:05 PM
Moon PositionMoonrise:03:43 PM
Moonset: 01:26 AM
Moon Phase
( Waxing Gibbous )
04 August 2025 Monday
Weather forecastSunny Sunny
Low temperature29 ° C
(84.2°F)
High temperature30.3 ° C
(86.5°F)
Avg. temperature29.5 ° C
(85.2°F)
Humidity% 69
Chance of rain0%
UV Index7
Sun PositionSunrise:06:48 AM
Sunset: 08:04 PM
Moon PositionMoonrise:04:39 PM
Moonset: 02:09 AM
Moon Phase
( Waxing Gibbous )
05 August 2025 Tuesday
Weather forecastPatchy rain nearby Patchy rain nearby
Low temperature29.1 ° C
(84.5°F)
High temperature30.3 ° C
(86.5°F)
Avg. temperature29.7 ° C
(85.4°F)
Humidity% 71
Chance of rain83%
UV Index6
Sun PositionSunrise:06:49 AM
Sunset: 08:04 PM
Moon PositionMoonrise:05:34 PM
Moonset: 02:59 AM
Moon Phase
( Waxing Gibbous )
06 August 2025 Wednesday
Weather forecastPatchy rain nearby Patchy rain nearby
Low temperature29.1 ° C
(84.3°F)
High temperature30.3 ° C
(86.6°F)
Avg. temperature29.7 ° C
(85.4°F)
Humidity% 70
Chance of rain77%
UV Index6
Sun PositionSunrise:06:49 AM
Sunset: 08:03 PM
Moon PositionMoonrise:06:25 PM
Moonset: 03:55 AM
Moon Phase
( Waxing Gibbous )
07 August 2025 Thursday
Weather forecastPatchy rain nearby Patchy rain nearby
Low temperature28.9 ° C
(84.1°F)
High temperature30.6 ° C
(87°F)
Avg. temperature29.7 ° C
(85.5°F)
Humidity% 69
Chance of rain72%
UV Index6
Sun PositionSunrise:06:50 AM
Sunset: 08:02 PM
Moon PositionMoonrise:07:12 PM
Moonset: 04:55 AM
Moon Phase
( Waxing Gibbous )
08 August 2025 Friday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature28.9 ° C
(84°F)
High temperature30.3 ° C
(86.5°F)
Avg. temperature29.5 ° C
(85.2°F)
Humidity% 68
Chance of rain0%
UV Index7
Sun PositionSunrise:06:50 AM
Sunset: 08:01 PM
Moon PositionMoonrise:07:54 PM
Moonset: 05:57 AM
Moon Phase
( Waxing Gibbous )
09 August 2025 Saturday
Weather forecastSunny Sunny
Low temperature28.7 ° C
(83.7°F)
High temperature30.3 ° C
(86.5°F)
Avg. temperature29.4 ° C
(84.9°F)
Humidity% 66
Chance of rain0%
UV Index7
Sun PositionSunrise:06:51 AM
Sunset: 08:01 PM
Moon PositionMoonrise:08:32 PM
Moonset: 07:00 AM
Moon Phase
( Full Moon )
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
27 July 2025 Sunday Cloudy  Cloudy 27.3 ° C
(81.1°F)
31.9 ° C
(89.4°F)
28.8 ° C
(83.8°F)
% 81 0% 2.7 Sunrise:06:44 AM
Sunset: 08:09 PM
Moonrise:09:25 AM
Moonset: 10:15 PM
Moon Phase
( Waxing Crescent )
28 July 2025 Monday Partly Cloudy  Partly Cloudy 27.6 ° C
(81.7°F)
30.8 ° C
(87.4°F)
28.9 ° C
(84.1°F)
% 83 0% 2.8 Sunrise:06:45 AM
Sunset: 08:09 PM
Moonrise:10:20 AM
Moonset: 10:44 PM
Moon Phase
( Waxing Crescent )
29 July 2025 Tuesday Partly Cloudy  Partly Cloudy 27.8 ° C
(82°F)
31 ° C
(87.8°F)
29 ° C
(84.3°F)
% 82 0% 2.8 Sunrise:06:45 AM
Sunset: 08:08 PM
Moonrise:11:13 AM
Moonset: 11:13 PM
Moon Phase
( Waxing Crescent )
30 July 2025 Wednesday Overcast  Overcast 27.9 ° C
(82.2°F)
30.3 ° C
(86.6°F)
29.1 ° C
(84.4°F)
% 74 0% 2.9 Sunrise:06:46 AM
Sunset: 08:07 PM
Moonrise:12:05 PM
Moonset: 11:42 PM
Moon Phase
( Waxing Crescent )
31 July 2025 Thursday Patchy rain nearby Patchy rain nearby 28.7 ° C
(83.7°F)
30.3 ° C
(86.5°F)
29.5 ° C
(85.1°F)
% 70 88% 0.1 Sunrise:06:46 AM
Sunset: 08:07 PM
Moonrise:12:57 PM
Moonset: No moonset
Moon Phase
( Waxing Crescent )
01 August 2025 Friday Partly Cloudy  Partly Cloudy 28.8 ° C
(83.9°F)
30.3 ° C
(86.6°F)
29.4 ° C
(85°F)
% 70 0% 7 Sunrise:06:47 AM
Sunset: 08:06 PM
Moonrise:01:51 PM
Moonset: 12:13 AM
Moon Phase
( First Quarter )
02 August 2025 Saturday Partly Cloudy  Partly Cloudy 28.7 ° C
(83.7°F)
30.1 ° C
(86.1°F)
29.4 ° C
(85°F)
% 69 0% 7 Sunrise:06:47 AM
Sunset: 08:06 PM
Moonrise:02:46 PM
Moonset: 12:47 AM
Moon Phase
( Waxing Gibbous )
03 August 2025 Sunday Sunny Sunny 28.9 ° C
(84.1°F)
30.3 ° C
(86.6°F)
29.6 ° C
(85.2°F)
% 68 0% 7 Sunrise:06:48 AM
Sunset: 08:05 PM
Moonrise:03:43 PM
Moonset: 01:26 AM
Moon Phase
( Waxing Gibbous )
04 August 2025 Monday Sunny Sunny 29 ° C
(84.2°F)
30.3 ° C
(86.5°F)
29.5 ° C
(85.2°F)
% 69 0% 7 Sunrise:06:48 AM
Sunset: 08:04 PM
Moonrise:04:39 PM
Moonset: 02:09 AM
Moon Phase
( Waxing Gibbous )
05 August 2025 Tuesday Patchy rain nearby Patchy rain nearby 29.1 ° C
(84.5°F)
30.3 ° C
(86.5°F)
29.7 ° C
(85.4°F)
% 71 83% 6 Sunrise:06:49 AM
Sunset: 08:04 PM
Moonrise:05:34 PM
Moonset: 02:59 AM
Moon Phase
( Waxing Gibbous )
06 August 2025 Wednesday Patchy rain nearby Patchy rain nearby 29.1 ° C
(84.3°F)
30.3 ° C
(86.6°F)
29.7 ° C
(85.4°F)
% 70 77% 6 Sunrise:06:49 AM
Sunset: 08:03 PM
Moonrise:06:25 PM
Moonset: 03:55 AM
Moon Phase
( Waxing Gibbous )
07 August 2025 Thursday Patchy rain nearby Patchy rain nearby 28.9 ° C
(84.1°F)
30.6 ° C
(87°F)
29.7 ° C
(85.5°F)
% 69 72% 6 Sunrise:06:50 AM
Sunset: 08:02 PM
Moonrise:07:12 PM
Moonset: 04:55 AM
Moon Phase
( Waxing Gibbous )
08 August 2025 Friday Partly Cloudy  Partly Cloudy 28.9 ° C
(84°F)
30.3 ° C
(86.5°F)
29.5 ° C
(85.2°F)
% 68 0% 7 Sunrise:06:50 AM
Sunset: 08:01 PM
Moonrise:07:54 PM
Moonset: 05:57 AM
Moon Phase
( Waxing Gibbous )
09 August 2025 Saturday Sunny Sunny 28.7 ° C
(83.7°F)
30.3 ° C
(86.5°F)
29.4 ° C
(84.9°F)
% 66 0% 7 Sunrise:06:51 AM
Sunset: 08:01 PM
Moonrise:08:32 PM
Moonset: 07:00 AM
Moon Phase
( Full Moon )
Key Biscayne Weather forecasts are usually fully updated every 4 hours.
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