October weather in Key West, FL

The average temperature in Key West in October is 79.9°F (74.6°F–85.2°F). Average precipitation: 6.01 inches.

October is a fall month in Key West, and is warmer than the annual average of 77.4°F. Daily temperatures swing about 10.6°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 11h 25m. For travel, October is a wet month.

Avg High
85.2°F
Avg Low
74.6°F
Precipitation
6.01 in
Daylight
11h 25m

October records in Key West

Date Record High Record Low Record Precip
October 1 90.0°F (2017) 75.0°F (2022) 0.40 in (2023)
October 2 90.0°F (2016) 73.9°F (2012) 1.39 in (2020)
October 3 91.0°F (2024) 75.0°F (2017) 0.61 in (2013)
October 4 90.0°F (2024) 71.1°F (2022) 0.37 in (2016)
October 5 90.0°F (2020) 70.0°F (2014) 2.69 in (2017)
October 6 90.0°F (2020) 66.9°F (2014) 1.04 in (2024)
October 7 90.0°F (2014) 73.0°F (2022) 1.86 in (2019)
October 8 89.1°F (2012) 73.9°F (2018) 1.02 in (2018)
October 9 90.0°F (2014) 75.0°F (2013) 1.38 in (2023)
October 10 90.0°F (2022) 71.1°F (2025) 1.99 in (2025)
October 11 90.0°F (2022) 73.0°F (2025) 0.67 in (2023)
October 12 89.1°F (2022) 71.1°F (2025) 0.93 in (2014)
October 13 89.1°F (2014) 72.0°F (2025) 1.28 in (2021)
October 14 89.1°F (2023) 73.0°F (2025) 0.97 in (2025)
October 15 88.0°F (2014) 71.1°F (2013) 1.12 in (2023)
October 16 89.1°F (2020) 73.0°F (2013) 1.52 in (2021)
October 17 88.0°F (2018) 69.1°F (2023) 0.54 in (2018)
October 18 88.0°F (2013) 68.0°F (2014) 1.07 in (2012)
October 19 88.0°F (2016) 64.9°F (2014) 1.06 in (2020)
October 20 88.0°F (2017) 66.0°F (2022) 2.21 in (2020)
October 21 89.1°F (2025) 71.1°F (2022) 1.62 in (2014)
October 22 88.0°F (2015) 69.1°F (2023) 1.89 in (2014)
October 23 90.0°F (2019) 69.1°F (2023) 0.70 in (2017)
October 24 89.1°F (2019) 73.0°F (2012) 0.19 in (2019)
October 25 88.0°F (2019) 70.0°F (2022) 0.68 in (2019)
October 26 88.0°F (2025) 66.9°F (2017) 0.49 in (2020)
October 27 88.0°F (2025) 66.0°F (2014) 1.06 in (2016)
October 28 88.0°F (2019) 70.0°F (2018) 0.43 in (2017)
October 29 88.0°F (2019) 69.1°F (2012) 1.05 in (2021)
October 30 88.0°F (2019) 62.1°F (2017) 0.11 in (2016)
October 31 88.0°F (2015) 55.9°F (2017) 0.33 in (2019)

Other months in Key West