Sacramento weather in December

In December, Sacramento sees average daytime highs of 57°F and overnight lows near 41°F, with 4.4 in of rain across 9.6 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 60°F in the first days to 56°F by the end. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of December to 9 h 18 min by month's end. Set against the rest of the year, December is Sacramento's 10th-clearest and 8th-windiest month. For the whole year in context, see Sacramento's year-round climate.

Daytime high
57°
12th warmest
Overnight low
41°
1st coldest
Rainfall
4.4 in
9.6 wet days
Daylight
9 h 18 min
7:23 AM – 4:42 PM
Cloud cover
57%
10th clearest
Wind
5 mph
8th windiest
Solar energy
2.08 kWh/m²
Travel score
4.2
out of 10

Sacramento is capital city of the U.S. state of California and seat of Sacramento County.

Density
2,025/km²
people per km²
Founded
1849

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 60°F in the first days to 56°F by the end.

A typical December day in Sacramento reaches about 57°F in the afternoon and slips back to 41°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 63°F. Set against its neighbours, December runs about 8°F cooler than November and on par with January.

30°40°50°60°70°151015202531
Avg high (°F)Avg low (°F)
16043
26043
36043
45943
55943
65942
75942
85842
95842
105842
115842
125842
135842
145742
155742
165741
175741
185741
195741
205641
215641
225641
235640
245640
255640
265640
275640
285640
295640
305640
315640

How December really feels in Sacramento

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.

Sacramento weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan58° / 42°4.79.89.64.3
Feb62° / 44°4.39.310.55.3
Mar67° / 47°3.69.111.76.4
Apr73° / 51°1.65.4137.6
May81° / 55°0.93.714.17.7
Jun88° / 60°0.2114.65.9
Jul91° / 61°0.00.114.45.0
Aug91° / 61°0.10.113.55.2
Sep87° / 59°0.10.512.36.3
Oct78° / 53°1.23.1118.3
Nov65° / 46°2.36.59.96.6
Dec57° / 41°4.49.69.44.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35050
45050
54951
64852
74753
84654
94555
104654
114654
124555
134555
144654
154654
164654
174753
184753
194852
204852
214852
224852
234753
244753
254852
264852
274753
284753
294654
304555
314456

Chance of precipitation in December

Any precipitation

Sacramento gets around 4.4 in of rain over 9.6 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 31% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
230
331
431
532
632
732
833
933
1033
1133
1233
1333
1433
1532
1632
1731
1831
1930
2030
2129
2229
2329
2429
2529
2629
2729
2829
2930
3030
3131

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12982
13982
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26982
27982
28982
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 30 min at the start of December to 9 h 18 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 7:11 AM to 7:29 AM, and sunset from 4:41 PM to 4:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:114:41
29.57:124:41
39.57:124:41
49.57:134:40
59.47:144:40
69.47:154:40
79.47:164:40
89.47:174:40
99.47:184:40
109.47:184:40
119.47:194:41
129.37:204:41
139.37:214:41
149.37:214:41
159.37:224:41
169.37:234:42
179.37:234:42
189.37:244:42
199.37:244:43
209.37:254:43
219.37:254:44
229.37:264:44
239.37:264:44
249.37:274:45
259.37:274:46
269.37:284:46
279.37:284:47
289.37:284:47
299.37:284:48
309.37:294:49
319.37:294:49

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.08 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.08 kWh/m² to a high of 8.18 kWh/m² in July across the year — December's 2.08 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.1Moderate
42.1Moderate
52.1Moderate
62.1Moderate
72.1Moderate
82.0Moderate
92.0Moderate
102.0Moderate
112.0Moderate
122.0Moderate
132.0Moderate
142.0Moderate
152.0Moderate
162.0Moderate
172.0Moderate
182.0Moderate
192.0Moderate
202.0Moderate
212.0Moderate
222.0Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.1Moderate
282.1Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in December

Hazard calendar for Sacramento

In seasonPeak

In December, Sacramento sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Sacramento's rainy season runs November–March, when most of the year's rain falls.

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

Is December a good time to visit Sacramento?

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

4.2
Sightseeing
12th-best month of the year
0.1
Beach & pool
12th-best month of the year

December is a reasonable time to visit Sacramento for sightseeing.

What to pack for Sacramento in December

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

In December, Sacramento sees daytime highs around 57°F and nights near 41°F. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Sacramento in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sacramento peaks around June 21 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJun 21UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Sacramento 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 Sacramento is worst in August — around 27 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (June, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 2126 µg/m³Jun 138 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar15Moderate
Apr12Good
May9Good
Jun8Good
Jul11Good
Aug27Moderate
Sep23Moderate
Oct17Moderate
Nov19Moderate
Dec14Moderate
Location & terrain

Where is Sacramento?

Sacramento sits at 38.6°N, 121.5°W, 30 ft above sea level, in United States. The nearest listed city is West Sacramento, 1.9 mi away.

Topography around Sacramento

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

Within 2 miles, the terrain around Sacramento has only modest variations in elevation — a maximum elevation change of 102 ft around an average of 30 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 164 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,787 ft.

The land around Sacramento is covered by artificial surfaces (47%) and trees (36%) within 2 miles, artificial surfaces (36%), cropland (24%) and grassland (20%) within 10 miles, and trees (32%), grassland (32%) and cropland (24%) within 50 miles.

2 miles
102 ft
10 miles
164 ft
50 miles
4,787 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: West Sacramento 1.9 mi · Arden-Arcade 6.2 mi · Rosemont 7.5 mi · Florin 7.5 mi · Rio Linda 8.1 mi · Carmichael 9.3 mi · North Highlands 9.9 mi · Foothill Farms 9.9 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 Sacramento (38.5816°, -121.4944°, elevation 30 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. 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).