Key Biscayne Weather in January
January in Key Biscayne typically sees daytime highs of 24°C (75°F) and nighttime lows of 17°C (63°F). With the least rainfall of the year, it's a reliably dry month.
Rainfall in Key Biscayne in January
This is the driest month of the year. Rain is expected on roughly 9 days, totalling around 40 mm (1.6 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Key Biscayne in January
January is a perfect month in Key Biscayne, with 24°C (75°F) during the day and 17°C (63°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. Experience the cooler side of the year in this month, yet it remains pleasantly warm.
Sunshine in Key Biscayne in January
The days are predominantly sunny, with an estimated total of around 222 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Key Biscayne in January
Wind speeds average 4 m/s (8 knots) during January. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in January
With water at 24°C (75°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Key Biscayne's climate page.
Key Biscayne Temperature in January
Min Temperature
17°C (63°F)
Max Temperature
24°C (75°F)
Water Temperature
24°C (75°F) *
Chance of Rain
31%
Precipitation
40 mm (1.6 in)
Rainy days
9 days
Humidity
73% *
Windspeed
4 m/s (8 knots) *
Sunshine
222 hours *
Percentage Sunshine
66% *
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
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What to Wear in Key Biscayne in January
For Key Biscayne in January, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Some rain is possible, so pack something to handle light showers. With water temperatures around 24°C (75°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Key Biscayne in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Key Biscayne's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Key Biscayne climate overview or explore weather in the United States of America.
