Fremont weather in December

In December, Fremont sees average daytime highs of 57°F and overnight lows near 43°F, with 3.3 in of rain across 8.9 wet days and about 9.5 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 57°F through the month. The sky is clear or mostly clear about 37% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Fremont's 10th-clearest and 6th-windiest month. For the whole year in context, see Fremont's year-round climate.

Daytime high
57°
12th warmest
Overnight low
43°
2nd coldest
Rainfall
3.3 in
8.9 wet days
Daylight
9 h 24 min
7:22 AM – 4:47 PM
Cloud cover
55%
10th clearest
Wind
4 mph
6th windiest
Solar energy
2.29 kWh/m²
Travel score
4.2
out of 10

Fremont is city in Alameda County, California, United States.

Density
1,023/km²
people per km²
Founded
1956

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 57°F through the month.

A typical December day in Fremont reaches about 57°F in the afternoon and slips back to 43°F overnight — a 14°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 63°F. Set against its neighbours, December runs about 6°F cooler than November and on par with January.

30°40°50°60°70°151015202531
Avg high (°F)Avg low (°F)
15945
25945
35844
45844
55844
65844
75844
85844
95744
105744
115744
125744
135743
145743
155643
165643
175643
185643
195643
205642
215642
225642
235642
245642
255642
265642
275642
285642
295642
305642
315642

Fremont weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 43°3.68.99.74.2
Feb59° / 45°3.88.910.64.7
Mar62° / 47°2.99.111.75.6
Apr65° / 48°1.65.712.96.8
May70° / 52°0.83.4147.9
Jun76° / 55°0.20.914.59.1
Jul80° / 58°0.00.214.39.0
Aug81° / 59°0.00.213.48.9
Sep79° / 58°0.10.412.39.0
Oct73° / 54°0.92.9118.5
Nov63° / 48°1.75.7106.3
Dec57° / 43°3.38.99.54.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35149
45149
54951
64951
74852
84852
94951
104951
114951
124951
134951
144951
155050
165050
175248
185248
195248
205248
215248
225248
235248
245149
255149
265050
274951
284852
294852
304753
314753

Chance of precipitation in December

Any precipitation

Fremont gets around 3.3 in of rain over 8.9 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 29% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
228
329
429
530
630
731
831
931
1031
1131
1231
1331
1430
1530
1630
1729
1829
1928
2028
2128
2227
2327
2427
2527
2627
2727
2827
2927
3027
3128

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
2973
3973
4973
5973
6973
7973
8973
9982
10982
11982
12982
13982
14982
15982
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in December

Winds average 4 mph in December.

Across December, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 24 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 7:10 AM to 7:28 AM, and sunset from 4:46 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:104:46
29.67:114:45
39.67:124:45
49.57:124:45
59.57:134:45
69.57:144:45
79.57:154:45
89.57:164:45
99.57:174:45
109.57:174:45
119.57:184:46
129.47:194:46
139.47:204:46
149.47:204:46
159.47:214:46
169.47:224:47
179.47:224:47
189.47:234:47
199.47:234:48
209.47:244:48
219.47:244:49
229.47:254:49
239.47:254:50
249.47:264:50
259.47:264:51
269.47:264:51
279.47:274:52
289.47:274:52
299.47:274:53
309.47:284:54
319.47:284:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.96 kWh/m² in June across the year — December's 2.29 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Is December a good time to visit Fremont?

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

4.2
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Fremont for sightseeing.

What to pack for Fremont in December

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

In December, Fremont sees daytime highs around 57°F and nights near 43°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Fremont in December

The nearest coast averages about 55°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 24 mi away) is warmest in August at about 59°F and coldest in April near 54°F.

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

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan54Bracing
Feb54Bracing
Mar54Bracing
Apr54Bracing
May54Bracing
Jun55Bracing
Jul57Bracing
Aug59Bracing
Sep59Bracing
Oct58Bracing
Nov56Bracing
Dec55Bracing

UV index in Fremont 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 Fremont peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Moderate

Air quality in Fremont 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 Fremont is worst in August — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (June, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1824 µg/m³Jun 1110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar16Moderate
Apr12Moderate
May10Good
Jun10Good
Jul11Good
Aug25Moderate
Sep17Moderate
Oct20Moderate
Nov18Moderate
Dec13Moderate
Location & terrain

Where is Fremont?

Fremont sits at 37.5°N, 122.0°W, 56 ft above sea level, in United States. The nearest listed city is Newark, 3.1 mi away.

Topography around Fremont

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

Within 2 miles, the terrain around Fremont has only modest variations in elevation — a maximum elevation change of 89 ft around an average of 52 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,779 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.

The land around Fremont is covered by artificial surfaces (71%) within 2 miles, grassland (29%), artificial surfaces (25%) and water (22%) within 10 miles, and water (28%), grassland (26%) and trees (25%) within 50 miles.

2 miles
89 ft
10 miles
2,779 ft
50 miles
4,452 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Newark 3.1 mi · Union City 3.7 mi · Milpitas 9.3 mi · Hayward 9.9 mi · East Palo Alto 9.9 mi · Pleasanton 9.9 mi · Dublin 11 mi · Palo Alto 11 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 Fremont (37.5483°, -121.9886°, elevation 56 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).