Weather in Key West in January 2026
- January is usually the coldest month of the year in Key West;
Average weather
Average temperature in Key West in January
Going from a maximum of +28°C during the day to a minimum of +13°C during the night, the temperature in January averages around +25°C.
The average maximum temperature goes down 7% by the end of the month, compared with the beginning of the month, from +28°C to +27°C.
Is Key West warm or cold in January?
Key West is typically warm in January.
Maximum temperatures go down compared to the previous month from +24°C to +23°C. The minimum temperature also goes down from +21°C to +20°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is the coldest month in Key West, here is the comparison with other months:
Climate in Key West in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +24°C | +23°C | +23°C | ||||
| Min. temperature | ||||||
| +8°C | +8°C | +9°C | ||||
| Max. temperature | ||||||
| +29°C | +28°C | +30°C | ||||
| Rainfall | ||||||
| 50 mm | 46 mm | 38 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 5 m/s | ||||
| Humidity | ||||||
| 76% | 76% | 76% | ||||
| Air pressure | ||||||
| 1017 HPa | 1018 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 8 | 10 | 10 | ||||
| Cloudy days | ||||||
| 10 | 10 | 9 | ||||
| Rainy days | ||||||
| 13 | 11 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as good as in December. It’s getting colder in January. From +24°C in the day, the average maximum temperature lowers to +23°C. As January arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 50 mm to 46 mm. Humidity levels don’t change as the month goes on, averaging around 76%. The average wind speed doesn’t change much during January, staying around 5 m/s. The good news is there are likely to be more sunny days in January, from 8 to 10.
February brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Key West is gradually increasing during January, going from 3 m/s to 5 m/s over the course of the month.
Rain
How was the weather last January in Key West?
Climate Change over Years
The climate in Key West in January has not changed much over the last 43 years.
The average temperature was the lowest in 1981 (+25°C) and the highest in 2019 (+29°C). The driest year was 2009 with only 624 mm of rainfall, and the wettest year was 2024 with 1925 mm.
FAQ
Is January a good time to visit Key West?
Can you sunbathe in Key West in January?
Is Key West rainy in January?
Is it sunny in Key West in January?
Other cities in USA
Monthly weather in Key West
Source of the data
For this page, we’ve looked at the typical weather in Key West, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
