Key West Weather in January
Average highs run from 75°F on January 1 to 75°F on January 31, and lows from 64°F to 63°F. Normal precipitation for the month is 2.01 in over about 8 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 75°F
- Average low
- 63°F
- Precipitation
- 2.01 in
- Record high
- 86°FJan 29, 1991
- Record low
- 41°FJan 13, 1981
- Chance of a freeze
- 0%
- Daylight
- 10 h 39 min to 11 h 03 min
- Cloud cover
- 51%
- Humidity
- 79%
- Dew point
- 65°F
- Wind
- 13.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Jan 1 | 75°F | 64°F | 84°F 2016 | 51°F 2001 | 24% |
| Jan 2 | 75°F | 64°F | 84°F 1996 | 51°F 2008 | 24% |
| Jan 3 | 75°F | 64°F | 84°F 1960 | 45°F 2008 | 25% |
| Jan 4 | 75°F | 64°F | 83°F 1959 | 50°F 2002 | 25% |
| Jan 5 | 75°F | 64°F | 83°F 1952 | 46°F 2001 | 25% |
| Jan 6 | 75°F | 64°F | 83°F 1949 | 49°F 2012 | 25% |
| Jan 7 | 75°F | 63°F | 85°F 1960 | 47°F 2010 | 25% |
| Jan 8 | 75°F | 63°F | 83°F 1988 | 47°F 2010 | 25% |
| Jan 9 | 75°F | 63°F | 82°F 1991 | 48°F 1996 | 25% |
| Jan 10 | 75°F | 63°F | 84°F 1993 | 45°F 1996 | 25% |
| Jan 11 | 75°F | 63°F | 83°F 1991 | 42°F 2010 | 25% |
| Jan 12 | 75°F | 63°F | 84°F 1993 | 48°F 1981 | 25% |
| Jan 13 | 75°F | 63°F | 83°F 1963 | 41°F 1981 | 25% |
| Jan 14 | 75°F | 63°F | 82°F 1963 | 47°F 1981 | 25% |
| Jan 15 | 74°F | 63°F | 83°F 1991 | 47°F 1948 | 25% |
| Jan 16 | 74°F | 63°F | 85°F 1991 | 48°F 2006 | 24% |
| Jan 17 | 74°F | 63°F | 82°F 2020 | 53°F 1977 | 24% |
| Jan 18 | 74°F | 63°F | 85°F 1960 | 48°F 1981 | 24% |
| Jan 19 | 74°F | 63°F | 82°F 1962 | 48°F 1977 | 24% |
| Jan 20 | 74°F | 62°F | 83°F 1989 | 46°F 1997 | 24% |
| Jan 21 | 75°F | 62°F | 82°F 1990 | 46°F 1971 | 24% |
| Jan 22 | 75°F | 62°F | 85°F 1959 | 48°F 2009 | 23% |
| Jan 23 | 75°F | 62°F | 84°F 1952 | 47°F 2009 | 23% |
| Jan 24 | 75°F | 62°F | 83°F 2007 | 45°F 2003 | 23% |
| Jan 25 | 75°F | 63°F | 84°F 1991 | 50°F 2001 | 23% |
| Jan 26 | 75°F | 63°F | 82°F 1984 | 50°F 2005 | 23% |
| Jan 27 | 75°F | 63°F | 84°F 1984 | 52°F 1977 | 22% |
| Jan 28 | 75°F | 63°F | 84°F 1991 | 47°F 1986 | 22% |
| Jan 29 | 75°F | 63°F | 86°F 1991 | 46°F 1986 | 22% |
| Jan 30 | 75°F | 63°F | 85°F 1991 | 49°F 1978 | 22% |
| Jan 31 | 75°F | 63°F | 85°F 1991 | 47°F 1966 | 21% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:11 AM, sunset 5:50 PM
- January 31
- sunrise 7:09 AM, sunset 6:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00084571 (Key W WFO), public domain. Records: NOAA GHCN-Daily, station USW00012836, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.