United StatesThe weather in January in Key West
It's warm in January in Key West with an average temperature of 24°C. Temperatures this month range from a low of 22°C to a high of 27°C. At night, you can expect temperatures between 17°C and 23°C.
Looking for great weather? January is a good time to be in Key West. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Key West, Florida. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 29°C in 2016, Key West reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 14°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 26°C.
Water temperature
The water temperature at Key West is 24°C this month. Comfortable for a swim.
Rainfall amount
In January, there is an average of 42 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in January for Key West
Click on any day in January to get detailed info about the usual weather on that day in Key West. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| Key West | New York | |
|---|---|---|
| Average temperature | 24°C | 5°C |
| Max. temperature | 27°C | 11°C |
| Min. temperature | 17°C | -5°C |
| Total precipitation | 42 mm | 97 mm |
| Rainy days | 7 days | 12 days |
Start of January
The month of January starts in Key West with warm temps, averaging around 26°C during the day and nights around 21°C.
Mid January
By mid-January, daytime temps drop to around 24°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of January
By the end of January, the average daytime temperature in Key West is around 24°C, while nighttime temps are about 19°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Key West for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in January in Key West, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Key West
Temperature in January in Key West over the years
Precipitation charts
These charts show the average amount of precipitation in January in Key West, Florida. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in January in Key West
Total precipitation in January in Key West over the years
Daily UV index in January in Key West
This chart shows the average daily UV index in January in Key West, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in January in Key West
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Average weather in Key West by month
Click on a month below to see detailed weather info for Key West. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.