Sunny Isles Beach weather in December

In December, Sunny Isles Beach sees average daytime highs of 74°F and overnight lows near 70°F, with 2.1 in of rain across 10.6 wet days and about 10.4 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 74°F through the month. The sky is clear or mostly clear about 41% of the time in December, and the air most often feels muggy.

Daylight stretches from about 10 h 30 min at the start of December to 10 h 24 min by month's end. Set against the rest of the year, December is Sunny Isles Beach's 6th-clearest and 4th-windiest month. For the whole year in context, see Sunny Isles Beach's year-round climate.

Daytime high
74°
9th warmest
Overnight low
70°
4th coldest
Rainfall
2.1 in
10.6 wet days
Daylight
10 h 24 min
7:05 AM – 5:28 PM
Cloud cover
51%
6th clearest
Wind
13 mph
4th windiest
Solar energy
3.25 kWh/m²
Travel score
7.0
out of 10

Sunny Isles Beach is city in Miami-Dade County, Florida, United States of America.

Founded
1997

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 74°F through the month.

A typical December day in Sunny Isles Beach reaches about 74°F in the afternoon and slips back to 70°F overnight — a 5°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 78°F. Set against its neighbours, December runs about 3°F cooler than November and about 2°F warmer than January.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17672
27671
37671
47571
57571
67571
77571
87571
97571
107571
117571
127570
137570
147470
157470
167470
177470
187470
197470
207469
217469
227469
237469
247469
257469
267469
277469
287469
297469
307369
317369

How December really feels in Sunny Isles Beach

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sunny Isles Beach weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan73° / 68°2.5910.67.1
Feb73° / 68°1.97.611.17.4
Mar74° / 70°2.38.411.87.4
Apr77° / 73°2.48.912.67.3
May79° / 76°3.81213.36.5
Jun82° / 79°5.518.113.65.0
Jul83° / 80°3.617.813.54.7
Aug84° / 80°5.319.712.94.4
Sep83° / 79°6.520.912.24.4
Oct81° / 77°5.415.911.45.7
Nov77° / 73°3.010.610.76.9
Dec74° / 70°2.110.610.47.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36436
46535
56436
66535
76535
86436
96436
106337
116337
126238
136139
146040
156040
165842
175842
185743
195743
205644
215644
225644
235644
245644
255644
265743
275743
285842
295842
306040
316040

Chance of precipitation in December

Any precipitation

Sunny Isles Beach gets around 2.1 in of rain over 10.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
537
637
737
837
937
1036
1136
1235
1335
1434
1534
1634
1733
1833
1933
2033
2133
2233
2333
2432
2532
2633
2733
2833
2933
3032
3132

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1813263517
2913253617
3913243618
41013233618
51013223618
61113213619
71113213619
81213203619
91213203619
101313193619
111313193619
121414193519
131414193518
141415193518
151515193417
161516193417
171516193316
181617183316
191618183315
201618183315
211619183314
221619183314
231620183313
241520183313
251520183413
261620183413
271620183413
281619173413
291719173413
301819173413
311818173413

Wind in December

Winds average 13 mph in December.

Across December, daily wind ranges from about 12 mph on the calmest days to 13 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
113breezy
213breezy
313breezy
413breezy
512breezy
612breezy
712breezy
812breezy
912breezy
1012breezy
1113breezy
1213breezy
1313breezy
1413breezy
1513breezy
1613breezy
1713breezy
1813breezy
1913breezy
2013breezy
2113breezy
2213breezy
2313breezy
2413breezy
2513breezy
2613breezy
2713breezy
2813breezy
2913breezy
3013breezy
3113breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 30 min at the start of December to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:55 AM to 7:12 AM, and sunset from 5:25 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.56:555:25
210.56:565:25
310.56:575:25
410.56:585:25
510.56:585:25
610.46:595:26
710.47:005:26
810.47:005:26
910.47:015:26
1010.47:015:26
1110.47:025:27
1210.47:035:27
1310.47:035:27
1410.47:045:28
1510.47:055:28
1610.47:055:28
1710.47:065:29
1810.47:065:29
1910.47:075:29
2010.47:075:30
2110.47:085:30
2210.47:085:31
2310.47:095:31
2410.47:095:32
2510.47:105:32
2610.47:105:33
2710.47:105:33
2810.47:115:34
2910.47:115:34
3010.47:115:35
3110.47:125:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.25 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.25 kWh/m² to a high of 6.29 kWh/m² in May across the year — December's 3.25 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.2Moderate
233.2Moderate
243.2Moderate
253.2Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in December

Hazard calendar for Sunny Isles Beach

In seasonPeak

None of Sunny Isles Beach's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sunny Isles Beach sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Sunny Isles Beach?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.0
Sightseeing
5th-best month of the year
5.7
Beach & pool
6th-best month of the year

December is one of the better times to visit Sunny Isles Beach for general sightseeing.

What to pack for Sunny Isles Beach in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Sunny Isles Beach sees daytime highs around 74°F and nights near 70°F. Worth packing: light clothes, rain gear and a windbreaker. About 11 days see rain.

light clothesrain geara windbreaker

Sea temperature near Sunny Isles Beach in December

The nearest coast averages about 78°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 85°F and coldest in February near 76°F.

The water stays above 68°F all year — warm enough for a swim any month.

75°80°85°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan76Warm
Feb76Warm
Mar77Warm
Apr78Warm
May81Warm
Jun83Tropical
Jul85Tropical
Aug85Tropical
Sep85Tropical
Oct83Tropical
Nov80Warm
Dec78Warm

UV index in Sunny Isles Beach in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sunny Isles Beach peaks around July 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 12UV 12Dec 18UV 5
UV index (midday)Level
Jan5High
Feb7Very high
Mar9Very high
Apr10Very high
May10Extreme
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Sunny Isles Beach in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Sunny Isles Beach is worst in July — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1722 µg/m³Nov 2010 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar13Moderate
Apr14Moderate
May15Moderate
Jun18Moderate
Jul23Moderate
Aug19Moderate
Sep14Moderate
Oct11Good
Nov10Good
Dec10Good
Location & terrain

Where is Sunny Isles Beach?

Sunny Isles Beach sits at 26.0°N, 80.1°W, 3 ft above sea level, in United States. The nearest listed city is Aventura, 1.2 mi away.

Topography around Sunny Isles Beach

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sunny Isles Beach.

Within 2 miles, the terrain around Sunny Isles Beach has only modest variations in elevation — a maximum elevation change of 66 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 138 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 203 ft.

The land around Sunny Isles Beach is covered by water (55%) and artificial surfaces (31%) within 2 miles, water (55%) and artificial surfaces (32%) within 10 miles, and water (43%) and wetland (36%) within 50 miles.

2 miles
66 ft
10 miles
138 ft
50 miles
203 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Aventura 1.2 mi · Ojus 1.9 mi · Hallandale Beach 2.5 mi · North Miami Beach 2.5 mi · Ives Estates 3.7 mi · Hollywood 4.3 mi · West Park 5.0 mi · Golden Glades 5.6 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sunny Isles Beach (25.9506°, -80.1228°, elevation 3 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).