Brunswick weather in December

In December, Brunswick sees average daytime highs of 63°F and overnight lows near 49°F, with 2.9 in of rain across 7.7 wet days and about 10 hours of daylight. It is the 11th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 66°F in the first days to 62°F by the end. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of December to 10 hours by month's end. Set against the rest of the year, December is Brunswick's 6th-clearest and 6th-windiest month. For the whole year in context, see Brunswick's year-round climate.

Daytime high
63°
11th warmest
Overnight low
49°
3rd coldest
Rainfall
2.9 in
7.7 wet days
Daylight
10 hours
7:23 AM – 5:22 PM
Cloud cover
55%
6th clearest
Wind
8 mph
6th windiest
Solar energy
2.69 kWh/m²
Travel score
6.0
out of 10

Brunswick is city in Glynn County, Georgia, United States.

Density
247/km²
people per km²
Founded
1771

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 66°F in the first days to 62°F by the end.

A typical December day in Brunswick reaches about 63°F in the afternoon and slips back to 49°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 73°F. Set against its neighbours, December runs about 6°F cooler than November and about 2°F warmer than January.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16651
26651
36651
46551
56551
66550
76550
86550
96450
106450
116449
126449
136449
146349
156349
166349
176349
186348
196348
206248
216248
226248
236248
246248
256247
266247
276247
286247
296247
306247
316247

How December really feels in Brunswick

Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Brunswick weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 46°3.2810.25.4
Feb64° / 48°2.77.910.95.9
Mar69° / 53°3.07.711.86.9
Apr75° / 60°2.5712.77.5
May81° / 68°2.48.313.66.6
Jun86° / 74°5.217.2144.3
Jul88° / 76°4.418.313.83.6
Aug87° / 76°5.820.513.13.6
Sep83° / 73°5.015.212.25.0
Oct77° / 64°3.28.511.27.2
Nov69° / 55°2.05.910.47.2
Dec63° / 49°2.97.7106.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35446
45545
55446
65347
75248
85149
95050
105149
115050
125050
134951
144951
154951
164951
174951
184951
194951
204852
214852
224852
234852
244852
254654
264555
274555
284555
294555
304555
314555

Chance of precipitation in December

Any precipitation

Brunswick gets around 2.9 in of rain over 7.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
121
221
321
422
522
623
723
824
924
1025
1125
1226
1326
1427
1527
1627
1727
1827
1927
2027
2127
2227
2327
2426
2526
2626
2726
2826
2925
3025
3124

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16018175
26018175
36118165
46218164
56218164
66218164
76418153
86418153
96418153
106418153
116518143
126518143
136518143
146718132
156718132
166817132
176817123
186817123
196916123
206916123
217016113
227016113
237115113
247115113
257115113
267115113
277115113
287115113
297115113
307115113
317115113

Wind in December

Winds average 8 mph in December.

Across December, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 06 min at the start of December to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:12 AM to 7:29 AM, and sunset from 5:19 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:125:19
210.17:135:19
310.17:145:19
410.17:145:19
510.17:155:19
610.17:165:20
710.17:175:20
810.07:175:20
910.07:185:20
1010.07:195:20
1110.07:195:20
1210.07:205:21
1310.07:215:21
1410.07:215:21
1510.07:225:21
1610.07:235:22
1710.07:235:22
1810.07:245:22
1910.07:245:23
2010.07:255:23
2110.07:255:24
2210.07:265:24
2310.07:265:25
2410.07:275:25
2510.07:275:26
2610.07:275:26
2710.07:285:27
2810.07:285:27
2910.07:285:28
3010.07:295:29
3110.07:295:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.69 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.47 kWh/m² in May across the year — December's 2.69 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.7Moderate
282.7Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in December

Hazard calendar for Brunswick

In seasonPeak

None of Brunswick's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Brunswick sits in the Atlantic hurricane belt; the season peaks August–October.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Brunswick?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.0
Sightseeing
6th-best month of the year
1.7
Beach & pool
11th-best month of the year

December is a reasonable time to visit Brunswick for sightseeing.

What to pack for Brunswick in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Brunswick sees daytime highs around 63°F and nights near 49°F. Little to plan around — just the basics. About 8 days see rain.

Sea temperature near Brunswick in December

The nearest coast averages about 62°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 83°F and coldest in February near 58°F.

It's comfortable for a long swim from Apr 18 to Nov 18 — about 7.1 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan59Bracing
Feb58Bracing
Mar62Cool
Apr68Cool
May75Refreshing
Jun81Warm
Jul83Tropical
Aug83Tropical
Sep82Warm
Oct76Warm
Nov69Refreshing
Dec62Cool

UV index in Brunswick in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Brunswick peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 19UV 3
UV index (midday)Level
Jan4Moderate
Feb5High
Mar7Very high
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Brunswick in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Brunswick is worst in March — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 8 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1720 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar21Moderate
Apr16Moderate
May15Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep12Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Brunswick?

Brunswick sits at 31.2°N, 81.5°W, 10 ft above sea level, in United States. The nearest listed city is Kingsland, 27 mi away.

Topography around Brunswick

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Brunswick.

Within 2 miles, the terrain around Brunswick has only modest variations in elevation — a maximum elevation change of 69 ft around an average of 10 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 151 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 272 ft.

The land around Brunswick is covered by wetland (32%) within 2 miles, trees (34%), wetland (30%) and water (25%) within 10 miles, and trees (57%) and water (29%) within 50 miles.

2 miles
69 ft
10 miles
151 ft
50 miles
272 ft
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Kingsland 27 mi · St. Marys 29 mi · Hinesville 48 mi · Jacksonville 57 mi · Jacksonville Beach 60 mi · Ponte Vedra Beach 63 mi · Wilmington Island 66 mi · Palm Valley 68 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Brunswick (31.1501°, -81.4915°, elevation 10 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).