St. Augustine, FL weather in December
In December, St. Augustine sees highs around 69°F and lows around 51°F: mild, with some rain. Expect about 8 wet days. It is one of the coolest months in St. Augustine. Good for outdoor plans.
- Normal high
- 69°F
- Normal low
- 51°F
- Wet days
- 8
- 3.0 in total
- Muggy days
- 2
- dew point 65°F+
How December changes from start to finish
| December 1 | December 31 | |
|---|---|---|
| Normal high | 71°F | 67°F |
| Normal low | 54°F | 49°F |
| Chance of a wet day | 28% | 28% |
| Sunrise / sunset | 7:03 am / 5:25 pm | 7:20 am / 5:35 pm |
| Daylight | 10.4 h | 10.3 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical December day
- 6 am54°Fdew point 48°F
- 9 am56°Fdew point 49°F
- Noon63°Fdew point 50°F
- 3 pm66°Fdew point 49°F
- 6 pm62°Fdew point 50°F
- 9 pm58°Fdew point 50°F
NOAA hourly normals (local standard time) from Jacksonville NAS (32 mi away); average wind 8 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph2 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more2 of 31
- Wet daysat least 0.01 in of rain or melted snow8 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below1 of 31
Average days per December, counted from daily records for each year 1991-2020.
Rain in December
Normal precipitation is 3.0 in; a dry December brings about 0.9 in and a wet one about 3.4 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How December varies from year to year
- Warmest December, 1991-20202015: average high 76°F
- Coolest December2010: average high 62°F
- Wettest December1997: 11.8 in
- Driest December2000: 0.3 in
- Highest reading84°F (December 30, 2015)
- Lowest reading24°F (December 31, 2000)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
December compared with November and January
| November | December | January | |
|---|---|---|---|
| Normal high | 75°F | 69°F | 68°F |
| Normal low | 58°F | 51°F | 48°F |
| Wet days | 8 | 8 | 9 |
| Comfortable days | 16 | 16 | 15 |
| Daylight | 10.7 h | 10.3 h | 10.5 h |
Highs change by -6°F from November and -1°F into January.
Nearby alternatives in December
- Warmer: Lakeland, FL134 mi · high 77°F · 8 wet days
- Cooler: Savannah, GA152 mi · high 64°F · 8 wet days
How St. Augustine ranks in December
- Normal high31st warmest of 378 cities; 18th of 23 in Florida
- Wet days153rd driest of 378
- Comfortable days25th most of 340
What to pack for St. Augustine in December
- A rain jacket or umbrella – rain on about 8 days
Heating and cooling
December has 191 heating degree days and 39 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How cold is St. Augustine in December?
The normal high is 69°F and the normal low is 51°F. From 1991 to 2020 the coldest December reading was 24°F (December 31, 2000).
Does it rain a lot in St. Augustine in December?
About 8 days in December have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest December in 1991-2020 was in 1997 (11.8 in); the driest was in 2000 (0.3 in).
Is December a good time to visit St. Augustine?
December ranks 5th of 12 months on our comfort score for St. Augustine (65 out of 100). It has about 16 comfortable days. The best months are February, March and November.
Where the numbers come from
- Temperature, rain and frost dates: St Augustine Lighthouse (USC00087826), 1.7 mi ESE of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Hastings 4NE (USC00083874), 13 mi SW of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Jacksonville NAS (USW00093837), 32 mi NW of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Jacksonville NAS (722065-93837), 32 mi NW of the city center, 20 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).