Key West Weather in July
Average highs run from 90°F on July 1 to 90°F on July 31, and lows from 78°F to 78°F. Normal precipitation for the month is 4.48 in over about 13 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 90°F
- Average low
- 78°F
- Precipitation
- 4.48 in
- Record high
- 96°FJul 3, 2023
- Record low
- 69°FJul 17, 1952
- Chance of a freeze
- 0%
- Days of 90°F or more
- 18.6
- Daylight
- 13 h 38 min to 13 h 17 min
- Cloud cover
- 57%
- Humidity
- 76%
- Dew point
- 76°F
- Wind
- 9.4 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 |
|---|---|---|---|---|---|
| Jul 1 | 90°F | 78°F | 93°F 2019 | 72°F 1950 | 39% |
| Jul 2 | 90°F | 78°F | 92°F 1990 | 73°F 1958 | 39% |
| Jul 3 | 90°F | 78°F | 96°F 2023 | 72°F 1958 | 40% |
| Jul 4 | 90°F | 78°F | 93°F 1959 | 70°F 1952 | 40% |
| Jul 5 | 90°F | 78°F | 93°F 2018 | 72°F 1948 | 40% |
| Jul 6 | 90°F | 78°F | 93°F 1950 | 72°F 1986 | 40% |
| Jul 7 | 90°F | 78°F | 92°F 1993 | 71°F 1950 | 41% |
| Jul 8 | 90°F | 78°F | 93°F 1963 | 72°F 1950 | 41% |
| Jul 9 | 90°F | 78°F | 94°F 1963 | 72°F 1949 | 41% |
| Jul 10 | 90°F | 78°F | 94°F 2018 | 71°F 1966 | 41% |
| Jul 11 | 90°F | 78°F | 94°F 2007 | 72°F 2021 | 41% |
| Jul 12 | 90°F | 78°F | 94°F 2023 | 72°F 1975 | 41% |
| Jul 13 | 90°F | 78°F | 94°F 2018 | 70°F 1959 | 42% |
| Jul 14 | 90°F | 78°F | 94°F 2020 | 71°F 1959 | 42% |
| Jul 15 | 90°F | 78°F | 94°F 2020 | 72°F 1951 | 42% |
| Jul 16 | 90°F | 78°F | 94°F 1991 | 72°F 1952 | 41% |
| Jul 17 | 90°F | 78°F | 93°F 1987 | 69°F 1952 | 41% |
| Jul 18 | 90°F | 78°F | 93°F 1962 | 71°F 1952 | 41% |
| Jul 19 | 90°F | 78°F | 94°F 1957 | 75°F 1949 | 41% |
| Jul 20 | 90°F | 78°F | 93°F 2009 | 70°F 1950 | 41% |
| Jul 21 | 90°F | 78°F | 93°F 1995 | 71°F 1950 | 41% |
| Jul 22 | 90°F | 78°F | 94°F 2018 | 71°F 1950 | 40% |
| Jul 23 | 90°F | 78°F | 95°F 1951 | 72°F 1951 | 40% |
| Jul 24 | 90°F | 78°F | 93°F 1952 | 73°F 1950 | 40% |
| Jul 25 | 90°F | 78°F | 95°F 2023 | 70°F 1951 | 39% |
| Jul 26 | 90°F | 78°F | 94°F 1990 | 73°F 1951 | 39% |
| Jul 27 | 90°F | 78°F | 93°F 2007 | 75°F 1966 | 39% |
| Jul 28 | 90°F | 78°F | 94°F 2015 | 74°F 2000 | 39% |
| Jul 29 | 90°F | 78°F | 93°F 1990 | 73°F 1983 | 39% |
| Jul 30 | 90°F | 78°F | 93°F 1993 | 74°F 1972 | 39% |
| Jul 31 | 90°F | 78°F | 94°F 1951 | 71°F 1949 | 39% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- July 1
- sunrise 6:42 AM, sunset 8:20 PM
- July 31
- sunrise 6:55 AM, sunset 8:12 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.