December weather in Bay Harbor Islands, FL
The average temperature in Bay Harbor Islands in December is 70.3°F (64.6°F–76.1°F). Average precipitation: 2.25 inches.
December is a winter month in Bay Harbor Islands, and is cooler than the annual average of 76.1°F. Daily temperatures swing about 11.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 10h 23m. For travel, December is one of the best months of the year to visit.
Avg High
76.1°F
Avg Low
64.6°F
Precipitation
2.25 in
Daylight
10h 23m
December records in Bay Harbor Islands
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 82.9°F (1942) | 46.9°F (1957) | 1.14 in (1978) |
| December 2 | 82.9°F (1975) | 50.0°F (1956) | 0.99 in (1994) |
| December 3 | 86.0°F (2007) | 50.0°F (1974) | 3.25 in (1972) |
| December 4 | 89.1°F (2018) | 48.0°F (1974) | 4.00 in (2015) |
| December 5 | 84.9°F (1978) | 46.0°F (1957) | 1.20 in (1964) |
| December 6 | 84.9°F (1984) | 50.0°F (2010) | 2.15 in (1986) |
| December 7 | 84.0°F (1942) | 43.0°F (2010) | 1.94 in (1979) |
| December 8 | 84.0°F (1942) | 43.0°F (2010) | 1.50 in (2015) |
| December 9 | 84.9°F (1942) | 43.0°F (2010) | 1.55 in (1975) |
| December 10 | 82.9°F (1960) | 46.9°F (1930) | 2.07 in (1942) |
| December 11 | 84.0°F (1986) | 43.0°F (1962) | 1.60 in (2016) |
| December 12 | 84.9°F (1942) | 35.1°F (1957) | 1.63 in (1966) |
| December 13 | 84.9°F (2009) | 36.0°F (1962) | 1.10 in (1997) |
| December 14 | 82.9°F (2012) | 36.0°F (2010) | 2.55 in (1997) |
| December 15 | 84.9°F (2019) | 36.0°F (2010) | 1.43 in (1958) |
| December 16 | 82.9°F (1947) | 37.0°F (1968) | 1.47 in (1958) |
| December 17 | 84.0°F (1970) | 44.1°F (1942) | 1.25 in (2023) |
| December 18 | 84.9°F (1964) | 43.0°F (1973) | 4.50 in (2009) |
| December 19 | 84.9°F (1948) | 43.0°F (1950) | 1.90 in (2009) |
| December 20 | 86.0°F (1948) | 43.0°F (1943) | 1.40 in (1973) |
| December 21 | 82.9°F (2007) | 41.0°F (1927) | 1.73 in (1994) |
| December 22 | 82.9°F (2007) | 37.9°F (1973) | 2.81 in (1944) |
| December 23 | 82.9°F (1983) | 37.9°F (1989) | 4.70 in (2019) |
| December 24 | 86.0°F (2006) | 32.0°F (1989) | 1.61 in (1953) |
| December 25 | 82.9°F (1998) | 33.1°F (1989) | 1.20 in (2014) |
| December 26 | 82.9°F (1998) | 34.0°F (1983) | 0.85 in (2006) |
| December 27 | 82.0°F (2007) | 41.0°F (2010) | 2.95 in (2013) |
| December 28 | 82.9°F (1929) | 39.9°F (2010) | 0.70 in (2013) |
| December 29 | 84.0°F (1998) | 41.0°F (2010) | 0.40 in (1997) |
| December 30 | 82.9°F (2012) | 42.1°F (1961) | 1.00 in (2024) |
| December 31 | 82.9°F (2007) | 44.1°F (2000) | 0.87 in (1983) |