July weather in Key West, FL
The average temperature in Key West in July is 83.8°F (77.8°F–89.8°F). Average precipitation: 4.48 inches.
July is a summer month in Key West, and is warmer than the annual average of 77.4°F. Daily temperatures swing about 12°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 13h 23m. For travel, July is hot.
Avg High
89.8°F
Avg Low
77.8°F
Precipitation
4.48 in
Daylight
13h 23m
July records in Key West
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 93.0°F (2015) | 73.0°F (2013) | 1.83 in (2024) |
| July 2 | 91.9°F (2015) | 73.0°F (2013) | 1.92 in (2013) |
| July 3 | 93.0°F (2015) | 72.0°F (2013) | 0.23 in (2013) |
| July 4 | 93.0°F (2015) | 72.0°F (2012) | 0.79 in (2012) |
| July 5 | 93.0°F (2015) | 73.9°F (2013) | 1.11 in (2013) |
| July 6 | 93.0°F (2015) | 73.0°F (2021) | 5.67 in (2021) |
| July 7 | 91.9°F (2015) | 77.0°F (2012) | 0.12 in (2022) |
| July 8 | 93.0°F (2015) | 73.0°F (2012) | 1.16 in (2012) |
| July 9 | 93.0°F (2015) | 75.0°F (2012) | 0.45 in (2017) |
| July 10 | 93.0°F (2015) | 75.0°F (2012) | 0.51 in (2012) |
| July 11 | 93.9°F (2015) | 72.0°F (2012) | 0.63 in (2013) |
| July 12 | 93.0°F (2023) | 73.9°F (2021) | 0.37 in (2014) |
| July 13 | 93.0°F (2019) | 73.0°F (2012) | 4.15 in (2012) |
| July 14 | 93.9°F (2023) | 73.0°F (2022) | 0.84 in (2013) |
| July 15 | 93.0°F (2019) | 73.9°F (2013) | 0.60 in (2021) |
| July 16 | 93.0°F (2023) | 73.0°F (2013) | 0.86 in (2013) |
| July 17 | 93.0°F (2023) | 72.0°F (2013) | 1.21 in (2013) |
| July 18 | 95.0°F (2023) | 73.9°F (2020) | 0.50 in (2020) |
| July 19 | 93.0°F (2024) | 75.9°F (2013) | 0.53 in (2014) |
| July 20 | 95.0°F (2024) | 73.9°F (2016) | 0.96 in (2014) |
| July 21 | 93.9°F (2024) | 73.9°F (2020) | 3.06 in (2020) |
| July 22 | 93.0°F (2023) | 73.0°F (2012) | 2.31 in (2020) |
| July 23 | 93.0°F (2024) | 73.0°F (2018) | 2.02 in (2018) |
| July 24 | 93.0°F (2023) | 73.0°F (2019) | 1.72 in (2019) |
| July 25 | 93.9°F (2023) | 72.0°F (2023) | 1.39 in (2025) |
| July 26 | 91.9°F (2024) | 73.9°F (2022) | 1.26 in (2022) |
| July 27 | 93.0°F (2023) | 73.9°F (2016) | 0.56 in (2016) |
| July 28 | 93.0°F (2015) | 77.0°F (2016) | 0.25 in (2016) |
| July 29 | 91.9°F (2014) | 77.0°F (2015) | 0.09 in (2019) |
| July 30 | 93.9°F (2024) | 75.0°F (2022) | 1.53 in (2024) |
| July 31 | 93.0°F (2025) | 73.9°F (2017) | 1.73 in (2014) |