DeBary weather in December

In December, DeBary sees average daytime highs of 71°F and overnight lows near 53°F, with 2.1 in of rain across 6.1 wet days and about 10.2 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 73°F in the first days to 70°F by the end. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of December to 10 h 12 min by month's end. Set against the rest of the year, December is DeBary's 8th-clearest and 6th-windiest month. For the whole year in context, see DeBary's year-round climate.

Daytime high
71°
11th warmest
Overnight low
53°
3rd coldest
Rainfall
2.1 in
6.1 wet days
Daylight
10 h 12 min
7:16 AM – 5:26 PM
Cloud cover
55%
8th clearest
Wind
6 mph
6th windiest
Solar energy
2.89 kWh/m²
Travel score
7.2
out of 10

DeBary is city in Volusia County, Florida, United States.

Density
355/km²
people per km²
Founded
1993

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 73°F in the first days to 70°F by the end.

A typical December day in DeBary reaches about 71°F in the afternoon and slips back to 53°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 80°F. Set against its neighbours, December runs about 5°F cooler than November and about 2°F warmer than January.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17355
27355
37355
47355
57355
67354
77354
87254
97254
107254
117254
127253
137153
147153
157153
167153
177153
187153
197152
207152
217052
227052
237052
247052
257052
267052
277052
287052
297051
307051
317051

How December really feels in DeBary

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.

DeBary weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan69° / 50°2.26.410.47.0
Feb72° / 52°2.17117.1
Mar76° / 56°2.46.711.87.5
Apr81° / 62°2.47.412.76.8
May86° / 68°3.210.113.45.1
Jun89° / 73°6.420.413.83.1
Jul90° / 75°6.723.713.72.6
Aug90° / 75°7.324132.7
Sep87° / 73°5.819.212.23.6
Oct82° / 67°3.010.511.36.1
Nov76° / 58°1.46.310.67.5
Dec71° / 53°2.16.110.27.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35842
45842
55842
65743
75644
85644
95545
105545
115446
125446
135347
145347
155248
165149
175149
185050
194951
204951
214951
224852
234852
244753
254654
264654
274654
284753
294654
304753
314753

Chance of precipitation in December

Any precipitation

DeBary gets around 2.1 in of rain over 6.1 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 20% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
118
218
318
418
518
619
719
819
919
1019
1119
1220
1320
1420
1520
1621
1721
1821
1921
2022
2122
2222
2322
2422
2522
2621
2721
2821
2921
3020
3120

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1441724132
2441724132
3441724131
4441825131
5441825131
6441825131
7441825131
8441824131
9441924131
10441924131
11451923120
12451923120
13461922120
14461922120
15471921120
16481921120
17491920110
18501920110
19501920110
20521819110
21521819110
22521819110
23531818110
24531818110
25531818110
26531818110
27531818110
28531818110
29521818120
30541717120
31541717120

Wind in December

Winds average 6 mph in December.

Across December, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 18 min at the start of December to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:06 AM to 7:23 AM, and sunset from 5:24 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:065:24
210.37:075:24
310.37:085:24
410.37:095:24
510.27:095:24
610.27:105:24
710.27:115:24
810.27:115:24
910.27:125:24
1010.27:135:25
1110.27:135:25
1210.27:145:25
1310.27:155:25
1410.27:155:26
1510.27:165:26
1610.27:165:26
1710.27:175:27
1810.27:185:27
1910.27:185:28
2010.27:195:28
2110.27:195:28
2210.27:205:29
2310.27:205:29
2410.27:205:30
2510.27:215:30
2610.27:215:31
2710.27:225:31
2810.27:225:32
2910.27:225:33
3010.27:235:33
3110.27:235:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.89 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 6.21 kWh/m² in May across the year — December's 2.89 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
262.9Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for DeBary

In seasonPeak

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

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

DeBary's rainy season runs June–September, when most of the year's rain falls.

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

Is December a good time to visit DeBary?

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

7.2
Sightseeing
3rd-best month of the year
4.9
Beach & pool
8th-best month of the year

December is one of the better times to visit DeBary for general sightseeing.

What to pack for DeBary in December

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

In December, DeBary sees daytime highs around 71°F and nights near 53°F. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near DeBary in December

The nearest coast averages about 70°F in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 mi away) is warmest in September at about 82°F and coldest in February near 67°F.

It's comfortable for a long swim from Mar 15 to Jan 17 — about 10.2 months when the water holds above 68°F.

65°70°75°80°85°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan68Refreshing
Feb67Cool
Mar68Refreshing
Apr71Refreshing
May76Warm
Jun80Warm
Jul82Warm
Aug82Warm
Sep82Warm
Oct79Warm
Nov74Refreshing
Dec70Refreshing

UV index in DeBary in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in DeBary peaks around July 15 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 15UV 11Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar8Very high
Apr8Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct7High
Nov5High
Dec4Moderate

Air quality in DeBary 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 DeBary is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodJun 2117 µg/m³Dec 186 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar17Moderate
Apr10Good
May11Good
Jun17Moderate
Jul16Moderate
Aug15Moderate
Sep10Good
Oct7Good
Nov7Good
Dec6Good
Location & terrain

Where is DeBary?

DeBary sits at 28.9°N, 81.3°W, 72 ft above sea level, in United States. The nearest listed city is Deltona, 3.1 mi away.

Topography around DeBary

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

Within 2 miles, the terrain around DeBary has only modest variations in elevation — a maximum elevation change of 108 ft around an average of 52 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 135 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 322 ft.

The land around DeBary is covered by trees (56%) within 2 miles, trees (67%) within 10 miles, and trees (55%) and water (24%) within 50 miles.

2 miles
108 ft
10 miles
135 ft
50 miles
322 ft
treesgrasslandartificial surfacesbare terrainwaterwetland
December weather nearby: Deltona 3.1 mi · Sanford 6.2 mi · Lake Mary 8.7 mi · DeLand 9.9 mi · Winter Springs 12 mi · Casselberry 14 mi · Wekiwa Springs 14 mi · Altamonte Springs 16 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 DeBary (28.8831°, -81.3087°, elevation 72 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).