Early winter · Weather & things to do
Key Largo in December
Key Largo edges cooler than November, with highs of 76°F (24°C), lows of 72°F (22°C) and about 1.7 in (42 mm) of rain.
At 86/100 for comfort (6th of 12), it's one of the best months to visit.

- Avg high
- 76°F (24°C)
- Avg low
- 72°F (22°C)
- Rain
- 1.7 in (42 mm)
- Humidity
- 78%
- Cloud cover
- 53%
- Daylight
- ~10 h 27 min
- Comfort score
- 86/100 · Great
What December feels like
Days are warm, averaging 76°F (24°C).
Even at night it stays warm, around 72°F (22°C).
With 78% average humidity, it feels muggy.
About 1.7 in (42 mm) of rain falls in a typical year's December.
Plan around December
December is one of Key Largo's best months on the climate data.
- Shortest days of the year, about 10 h 27 min of daylight.
- Comfort slips from 89/100 in November to 86/100.
- December sits inside the Dec – May window our Florida Keys Adventure route recommends.
What to pack for December
- Light, breathable clotheshighs average 76°F
- Quick-dry fabrics78% average humidity
- Comfortable walking shoesmost picks involve some walking
What to do in Key Largo in December
December is good outdoor weather here, so these picks lean toward the open air.
Christ of the Abyss
Bronze statue on the reef at Key Largo Dry Rocks, reached by snorkel or dive boat.
Why now December scores 86/100 for comfort, good conditions for being outside.
African Queen
The steamboat from the 1951 film, running short canal cruises.
Key Largo Fisheries Backyard Café
Working fish house serving lobster rolls and fresh hogfish at waterside tables.
Snappers Oceanfront Restaurant & Bar
Ocean-side tiki bar and seafood restaurant on a canal.
Sundowners
Bayside restaurant since 1985 with west-facing tables over Florida Bay.
Nearby in December
- Everglades in December~31 mi · highs 75°F, 1.8 in rain · similar daytime temperatures, about as wet
- Miami in December~49 mi · highs 75°F, 2.0 in rain · similar daytime temperatures, about as wet
- Bahia Honda & the Lower Keys in December~59 mi · highs 76°F, 1.3 in rain · similar daytime temperatures, about as wet
- Key West in December~91 mi · highs 76°F, 1.5 in rain · similar daytime temperatures, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Key Largo in December: quick answers
Is December a good time to visit Key Largo?
Yes. On the climate data it's one of the best months, scoring 86/100. Expect highs of 76°F (24°C) and 1.7 in (42 mm) of rain. December is inside the Dec – May window our Florida Keys Adventure route recommends.
How hot is Key Largo in December?
Average highs are 76°F (24°C) and average lows 72°F (22°C), making it the 3rd-coldest month by daytime highs.
Does it rain a lot in Key Largo in December?
Not much: about 1.7 in (42 mm) of rain falls across December on average, the 4th-driest month of the year. The annual total is about 48.7 in (1237 mm).
What should I pack for Key Largo in December?
Bring light, breathable clothes (highs average 76°F), quick-dry fabrics (78% average humidity) and comfortable walking shoes (most picks involve some walking).
More on Key Largo
Routes in season in December
- Florida Keys Adventure Dec – May
Planning Key Largo in December?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.





