Weather in Miami 🇺🇸
Monthly weather averages & travel planning
December
Avg Temp
28°C
Rain Days
6 days
Sun Hours
1 hrs
Humidity
78%
North America › 🇺🇸 United States › Miami
Updated: March 2026
Is December a Good Time to Visit Miami?
4/10
Fair
December is a fair time to visit Miami (4/10). Average highs of 28°C and 1 sunshine hours daily make conditions workable, though not exceptional. December suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 6 potential rain days. January offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Miami's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
vs November:28°C avg high
Miami's December weather is shaped by atmospheric forces that make the data more than just numbers. The 28°C average high reflects the dominance of a stable subtropical air mass, which suppresses cloud formation and concentrates solar energy at the surface. As a result, 1 daily sunshine hours are recorded on average, and rainfall of 70mm is distributed across approximately 6 days because precipitation events tend to be brief and infrequent.
28°C
82°F
Avg High
21°C
70°F
Avg Low
6 days
70 mm total
Rain Days
1h
per day avg
Sunshine
78%
Humid
Humidity
Temperature in Miami in December
The 7°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. At 78% humidity, the 28°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. The UV index of 2 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Wind averages 15 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 82°F average high, 70°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Miami in December
Morning21°CBefore the day warms up
Afternoon28°CPeak daytime temperature
Evening24°CAfter sunset cools down
Packing for Miami in December means dressing for 28°C days and 21°C evenings. A light cotton tee with a casual overshirt works well at 28°C, the overshirt doubles as a layer for air-conditioned venues. Evening temperatures settle at 21°C, a modest 7°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. At 78% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Layers are more practical than a single heavy garment in Miami. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
Events in Miami in December
December has no major festivals or public holidays in Miami, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Miami in December
Based on 28°C average highs and 6 rainy days
- Light layers for morning and evening
- Breathable T-shirts and comfortable trousers
- UV-protective sunglasses
- Quick-dry travel towel
- Anti-chafe balm for long walking days
- Moisture-wicking synthetic fabrics for active days
- SPF 30+ sunscreen
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Miami in December
- Explore outdoor markets and street food stallsMid-morning (10am-12pm)At 28°C, the temperature is ideal for extended walking without overheating
- Guided walking tour of the historic centreMorning or late afternoonComfortable temperatures allow several hours on foot without fatigue
- Visit rooftop viewpoints and observation decksGolden hour (1 hour before sunset)Warm clear evenings provide exceptional visibility for panoramic photography
- Day trip to the surrounding countryside or coastFull day (depart by 8am)December is reliably dry enough for rural day trips without weather risk
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningDecember brings distinct seasonal changes to public green spaces worth exploring
- Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in December, with vendors setting up specifically for warm evenings
Why is Miami warm in December?
December in Miami reflects a mid-latitude climate pattern, with temperatures averaging 28°C by day and 21°C overnight. The city sits at 26 degrees north latitude, where the balance between solar radiation and heat loss drives conditions that are neither extreme nor static. The warm temperatures reflect a stable high-pressure pattern typical of the season, which suppresses cloud formation and concentrates solar energy at the surface. Day-to-night temperature variation of 7°C is moderate and manageable with a single mid-layer. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Miami in December
In December, Miami experiences average highs of 28°C (82°F) and lows of 21°C (70°F). Expect around 6 rainy days and 1 hours of sunshine per day, with humidity averaging 78%. The 7°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV exposure is moderate at index 2.
Miami typically sees 6 rainy days in December, with total precipitation of around 70mm. This makes December one of the drier months of the year, and a reliable window for outdoor sightseeing and day trips. Rain showers tend to be brief when they do occur. For context, the driest month in Miami typically sees 4-6 fewer rain days than December.
Pack light layers, a light jacket for evenings, comfortable walking shoes, and sunscreen for Miami in December. Daytime temperatures of 28°C are pleasant, but the evening drop to 21°C means a jacket is essential if you plan to be out after dark. Rain is infrequent with only 6 wet days, so a light rain layer is optional. Comfortable walking shoes are a priority given the amount of ground most visitors cover.
December is a reasonable time to visit Miami. Expect 6 rainy days, so pack a light rain layer for flexibility. Average temperatures of 28°C make outdoor exploration comfortable during the dry periods. With 1 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.
The average high temperature in Miami in December is 28°C (82°F), and the average low is 21°C (70°F). The mean daily temperature is approximately 25°C (76°F). The day-to-night range of 7°C is moderate, meaning a single light jacket covers most situations. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Miami is generally February. February offers the most sunshine at 3 hours per day and only 9 rainy days. Average temperatures reach 29°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around February gives you the best chance of dry, bright weather.
December is shoulder or low season in Miami, meaning fewer tourists and generally lower prices than peak months. With 1 sunshine hours and 6 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In December, Miami suits a range of activities thanks to mild temperatures around 28°C. With few rainy days, outdoor activities are highly recommended. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. Cosy cafes and cultural venues make ideal retreats on overcast days.
December ranks 12th sunniest of the year in Miami, with an average 1 daily sunshine hours. The driest months are December, January, and November. May is the hottest month (32°C avg high); January is the coolest (28°C). From here, temperatures fall 0°C into January. Compared to last month (November: 28°C high, 7 rain days), December is similarly warm and drier. December is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 28°C | 21°C | 7 | 1h | View |
| February | 29°C | 22°C | 9 | 3h | View |
| March | 30°C | 23°C | 12 | 4h | View |
| April | 31°C | 24°C | 15 | 6h | View |
| May | 32°C | 25°C | 17 | 7h | View |
| June | 32°C | 25°C | 18 | 7h | View |
| July | 32°C | 25°C | 17 | 7h | View |
| August | 31°C | 24°C | 15 | 6h | View |
| September | 30°C | 23°C | 12 | 4h | View |
| October | 29°C | 22°C | 9 | 3h | View |
| November | 28°C | 21°C | 7 | 1h | View |
| December | 28°C | 21°C | 6 | 1h | View |
January
7 rain days, 1h sun
28°21°
February
9 rain days, 3h sun
29°22°
March
12 rain days, 4h sun
30°23°
April
15 rain days, 6h sun
31°24°
May
17 rain days, 7h sun
32°25°
June
18 rain days, 7h sun
32°25°
July
17 rain days, 7h sun
32°25°
August
15 rain days, 6h sun
31°24°
September
12 rain days, 4h sun
30°23°
October
9 rain days, 3h sun
29°22°
November
7 rain days, 1h sun
28°21°
December
6 rain days, 1h sun
28°21°
Other Months in Miami
Plan Your Trip to Miami
Nearby Destinations
Cities within 500 km with comparable weather conditions
Data Sources for Miami
Climate normals represent 30-year averages (1991-2020). Individual years may vary.