Ventura weather in December

In December, Ventura sees average daytime highs of 61°F and overnight lows near 49°F, with 2.3 in of rain across 4.9 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 61°F through the month. The sky is clear or mostly clear about 54% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 42 min by month's end. Set against the rest of the year, December is Ventura's 9th-clearest and 7th-windiest month. For the whole year in context, see Ventura's year-round climate.

Daytime high
61°
10th warmest
Overnight low
49°
3rd coldest
Rainfall
2.3 in
4.9 wet days
Daylight
9 h 42 min
7:02 AM – 4:45 PM
Cloud cover
41%
9th clearest
Wind
5 mph
7th windiest
Solar energy
2.96 kWh/m²
Travel score
6.1
out of 10

Ventura is city in and county seat of Ventura County, California, United States.

Density
1,164/km²
people per km²
Founded
1782

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 61°F through the month.

A typical December day in Ventura reaches about 61°F in the afternoon and slips back to 49°F overnight — a 12°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 68°F. Set against its neighbours, December runs about 5°F cooler than November and on par with January.

40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16351
26351
36351
46351
56251
66250
76250
86250
96250
106250
116250
126250
136150
146150
156149
166149
176149
186149
196149
206149
216149
226149
236149
246149
256149
266149
276149
286149
296149
306149
316149

Ventura weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 49°3.75.6105.9
Feb61° / 49°3.76.110.75.7
Mar62° / 51°2.65.111.76.3
Apr65° / 52°0.92.812.87.3
May67° / 56°0.41.513.87.9
Jun70° / 59°0.10.314.28.7
Jul74° / 63°0.10.414.19.3
Aug75° / 64°0.00.113.39.6
Sep74° / 63°0.10.512.29.3
Oct71° / 59°0.7211.18.5
Nov66° / 54°0.92.810.27.6
Dec61° / 49°2.34.99.86.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27327
37228
47228
57030
67030
76931
86931
96931
106931
116931
126733
136733
146733
156733
166733
176733
186733
196733
206733
216733
226733
236634
246535
256436
266436
276337
286238
296238
306238
316139

Chance of precipitation in December

Any precipitation

Ventura gets around 2.3 in of rain over 4.9 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 16% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
112
213
313
413
514
614
714
814
914
1015
1115
1215
1316
1416
1516
1616
1716
1817
1917
2017
2117
2218
2318
2418
2518
2618
2718
2819
2919
3019
3119

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3982
4982
5982
6982
7982
8982
9982
10982
11982
12991
13991
14991
15991
16991
17991
18991
19991
201000
211000
221000
231000
241000
251000
261000
271000
281000
29991
30991
31991

Wind in December

Winds average 5 mph in December.

Across December, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 6:51 AM to 7:08 AM, and sunset from 4:43 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:514:43
29.96:514:43
39.86:524:43
49.86:534:43
59.86:544:43
69.86:554:43
79.86:554:43
89.86:564:43
99.86:574:43
109.86:584:44
119.86:584:44
129.76:594:44
139.77:004:44
149.77:004:44
159.77:014:45
169.77:024:45
179.77:024:45
189.77:034:46
199.77:034:46
209.77:044:46
219.77:044:47
229.77:054:47
239.77:054:48
249.77:064:48
259.77:064:49
269.77:074:49
279.77:074:50
289.77:074:51
299.77:084:51
309.77:084:52
319.77:084:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.96 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 8.05 kWh/m² in June across the year — December's 2.96 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.0Moderate
43.0Moderate
53.0Moderate
63.0Moderate
73.0Moderate
83.0Moderate
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
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in December

Is December a good time to visit Ventura?

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

6.1
Sightseeing
10th-best month of the year
1.1
Beach & pool
10th-best month of the year

December is a reasonable time to visit Ventura for sightseeing.

What to pack for Ventura in December

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

In December, Ventura sees daytime highs around 61°F and nights near 49°F. Worth packing: a warm layer. About 5 days see rain.

a warm layer

Sea temperature near Ventura in December

The nearest coast averages about 59°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 8 mi away) is warmest in August at about 66°F and coldest in April near 57°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

55°60°65°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan58Bracing
Feb58Bracing
Mar57Bracing
Apr57Bracing
May59Bracing
Jun62Cool
Jul65Cool
Aug66Cool
Sep66Cool
Oct65Cool
Nov62Cool
Dec59Cool

UV index in Ventura in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ventura peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 15UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr7Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Ventura 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 Ventura is worst in December — around 78 µg/m³ PM2.5 (unhealthy), about 12.6× the cleanest month (January, 6 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyDec 1670 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr7Good
May7Good
Jun7Good
Jul11Good
Aug12Good
Sep11Good
Oct8Good
Nov14Moderate
Dec78Unhealthy
Location & terrain

Where is Ventura?

Ventura sits at 34.3°N, 119.3°W, 36 ft above sea level, in United States. The nearest listed city is Oxnard, 8.7 mi away.

Topography around Ventura

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

Within 2 miles, the terrain around Ventura has significant variations in elevation — a maximum elevation change of 1,145 ft around an average of 141 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,605 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,806 ft.

The land around Ventura is covered by water (37%) and artificial surfaces (28%) within 2 miles, water (41%) and grassland (23%) within 10 miles, and water (43%), grassland (22%) and trees (21%) within 50 miles.

2 miles
1,145 ft
10 miles
2,605 ft
50 miles
8,806 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Oxnard 8.7 mi · Port Hueneme 11 mi · Santa Paula 14 mi · Camarillo 15 mi · Fillmore 23 mi · Moorpark 24 mi · Santa Barbara 25 mi · Thousand Oaks 27 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 Ventura (34.2783°, -119.2932°, elevation 36 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. 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).