October weather in Key Biscayne, FL
The average temperature in Key Biscayne in October is 81.6°F (76.1°F–87.2°F). Average precipitation: 6.33 inches.
October is a fall month in Key Biscayne, and is warmer than the annual average of 78.7°F. Daily temperatures swing about 11.1°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 11h 23m. For travel, October is a wet month.
Avg High
87.2°F
Avg Low
76.1°F
Precipitation
6.33 in
Daylight
11h 23m
October records in Key Biscayne
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 93.0°F (2015) | 70.0°F (2022) | 1.94 in (2007) |
| October 2 | 93.0°F (2015) | 71.1°F (2010) | 1.01 in (2007) |
| October 3 | 91.0°F (2014) | 70.0°F (2001) | 3.88 in (2013) |
| October 4 | 90.0°F (2014) | 71.1°F (2015) | 7.60 in (2000) |
| October 5 | 91.0°F (2014) | 72.0°F (2014) | 2.89 in (2008) |
| October 6 | 90.0°F (2000) | 71.1°F (2014) | 2.08 in (2024) |
| October 7 | 90.0°F (2000) | 70.0°F (2010) | 1.00 in (2024) |
| October 8 | 91.9°F (2017) | 71.1°F (2010) | 0.70 in (2019) |
| October 9 | 93.0°F (2016) | 68.0°F (2010) | 1.51 in (2012) |
| October 10 | 91.0°F (2017) | 68.0°F (2010) | 2.36 in (2008) |
| October 11 | 91.9°F (2018) | 70.0°F (2010) | 0.32 in (2025) |
| October 12 | 91.0°F (2018) | 72.0°F (2025) | 1.59 in (2024) |
| October 13 | 91.9°F (2018) | 72.0°F (2015) | 1.43 in (2006) |
| October 14 | 91.9°F (2022) | 71.1°F (2004) | 1.73 in (2015) |
| October 15 | 90.0°F (2015) | 69.1°F (2000) | 4.57 in (2004) |
| October 16 | 91.0°F (2022) | 64.9°F (2004) | 4.08 in (1999) |
| October 17 | 91.0°F (2021) | 61.0°F (2023) | 3.51 in (2011) |
| October 18 | 91.0°F (2019) | 53.1°F (2002) | 0.28 in (2011) |
| October 19 | 89.1°F (2018) | 59.0°F (2009) | 1.34 in (2001) |
| October 20 | 89.1°F (2012) | 60.1°F (2009) | 0.69 in (2012) |
| October 21 | 93.0°F (2019) | 64.9°F (2011) | 2.08 in (2020) |
| October 22 | 91.0°F (2019) | 64.0°F (2011) | 1.84 in (2001) |
| October 23 | 90.0°F (2013) | 64.9°F (2011) | 4.41 in (2021) |
| October 24 | 90.0°F (2013) | 62.1°F (2006) | 2.20 in (2014) |
| October 25 | 91.0°F (2017) | 57.0°F (2005) | 3.04 in (2014) |
| October 26 | 88.0°F (2019) | 55.0°F (2005) | 0.91 in (2012) |
| October 27 | 90.0°F (2018) | 55.9°F (2005) | 2.26 in (2007) |
| October 28 | 91.0°F (2019) | 57.9°F (2008) | 0.35 in (2016) |
| October 29 | 90.0°F (2021) | 55.9°F (2008) | 3.20 in (2017) |
| October 30 | 91.0°F (2020) | 55.9°F (2008) | 0.71 in (2011) |
| October 31 | 90.0°F (2020) | 54.0°F (2012) | 3.11 in (2011) |