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Mid-winter · Weather & things to do

Key Largo in January

This is the coldest month in Key Largo: highs average 73°F (23°C) and lows 68°F (20°C), with about 1.3 in (34 mm) of rain.

At 87/100 for comfort (5th of 12), it's one of the best months to visit.

Key Largo, Florida, United States
Avg high
73°F (23°C)
Avg low
68°F (20°C)
Rain
1.3 in (34 mm)
Humidity
76%
Cloud cover
55%
Daylight
~10 h 36 min
Comfort score
87/100 · Great

What January feels like

Highs settle around 73°F (23°C), warm enough for short sleeves.

Nights cool to an average low of 68°F (20°C).

Humidity averages 76%, so the air feels sticky and the heat feels stronger than the thermometer says.

Rain is moderate at about 1.3 in (34 mm) for the month.

Key Largo: January compared with the months either side
DecemberJanuaryFebruary
Avg high76°F24°C73°F23°C75°F24°C
Avg low72°F22°C68°F20°C70°F21°C
Rain1.7 in42 mm1.3 in34 mm1.5 in39 mm
Daylight10 h 27 min10 h 36 min11 h 09 min
Comfort868789

Plan around January

January is one of Key Largo's best months on the climate data.

What to pack for January

What to do in Key Largo in January

With conditions on your side, the picks below favor time outside.

Nearby in January

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 January: quick answers

Is January a good time to visit Key Largo?

Yes. On the climate data it's one of the best months, scoring 87/100. Expect highs of 73°F (23°C) and 1.3 in (34 mm) of rain. January is inside the Dec – May window our Florida Keys Adventure route recommends.

How hot is Key Largo in January?

Average highs are 73°F (23°C) and average lows 68°F (20°C), making it the coldest month by daytime highs.

Does it rain a lot in Key Largo in January?

Not much: about 1.3 in (34 mm) of rain falls across January on average, the driest month of the year. The annual total is about 48.7 in (1237 mm).

What should I pack for Key Largo in January?

Bring light, breathable clothes (73°F afternoons), quick-dry fabrics (76% average humidity) and comfortable walking shoes (most places below are best reached on foot or with short walks).

Routes in season in January

Planning Key Largo in January?

Share this January plan with your group, poll everyone on dates and keep the packing list in one place.

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