December weather in Longboat Key, FL
The average temperature in Longboat Key in December is 65.2°F (55.2°F–75.2°F). Average precipitation: 2.33 inches.
December is a winter month in Longboat Key, and is cooler than the annual average of 74.1°F. Daily temperatures swing about 20°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 17m. For travel, December is one of the best months of the year to visit.
Avg High
75.2°F
Avg Low
55.2°F
Precipitation
2.33 in
Daylight
10h 17m
December records in Longboat Key
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 84.9°F (2025) | 44.1°F (1999) | 0.04 in (2008) |
| December 2 | 84.0°F (2023) | 39.0°F (1999) | 0.08 in (2009) |
| December 3 | 82.9°F (2012) | 39.0°F (2008) | 0.77 in (2015) |
| December 4 | 84.9°F (2016) | 39.9°F (2010) | 0.97 in (2009) |
| December 5 | 84.0°F (2016) | 46.9°F (2007) | 0.59 in (2009) |
| December 6 | 84.0°F (2001) | 41.0°F (2010) | 1.18 in (2016) |
| December 7 | 84.0°F (2001) | 35.1°F (2010) | 1.69 in (2025) |
| December 8 | 86.0°F (2013) | 36.0°F (2010) | 0.21 in (2017) |
| December 9 | 84.0°F (2007) | 42.1°F (2010) | 2.04 in (2002) |
| December 10 | 84.0°F (2000) | 41.0°F (2017) | 0.62 in (2012) |
| December 11 | 84.9°F (2007) | 39.9°F (2017) | 0.53 in (2008) |
| December 12 | 84.9°F (2001) | 42.1°F (2014) | 1.21 in (2002) |
| December 13 | 84.9°F (2000) | 41.0°F (2014) | 2.30 in (2002) |
| December 14 | 84.0°F (2001) | 34.0°F (2010) | 3.07 in (2003) |
| December 15 | 84.9°F (2001) | 31.1°F (2010) | 1.81 in (2022) |
| December 16 | 86.0°F (2001) | 35.1°F (2010) | 2.46 in (2023) |
| December 17 | 86.0°F (2024) | 39.9°F (2002) | 0.73 in (2019) |
| December 18 | 84.0°F (2006) | 37.9°F (2000) | 0.81 in (1999) |
| December 19 | 82.9°F (2016) | 39.0°F (2000) | 1.02 in (2018) |
| December 20 | 84.9°F (2013) | 32.0°F (2000) | 4.18 in (2018) |
| December 21 | 87.1°F (2013) | 32.0°F (2000) | 0.92 in (2021) |
| December 22 | 84.0°F (2013) | 39.9°F (2012) | 0.41 in (2019) |
| December 23 | 82.9°F (2013) | 37.0°F (2012) | 0.51 in (2019) |
| December 24 | 84.9°F (2015) | 36.0°F (2022) | 1.14 in (2002) |
| December 25 | 84.9°F (2015) | 36.0°F (2022) | 1.45 in (2004) |
| December 26 | 86.0°F (2016) | 37.9°F (1999) | 1.51 in (2004) |
| December 27 | 84.9°F (2015) | 35.1°F (2010) | 0.05 in (2004) |
| December 28 | 84.9°F (2018) | 27.1°F (2010) | 0.68 in (2019) |
| December 29 | 84.0°F (2015) | 31.1°F (2010) | 0.18 in (2013) |
| December 30 | 84.9°F (2015) | 39.9°F (2002) | 0.07 in (2014) |
| December 31 | 86.0°F (2006) | 30.9°F (2000) | 3.12 in (2002) |