Temecula weather in January

In January, Temecula sees average daytime highs of 64°F and overnight lows near 45°F, with 2.7 in of rain across 5.8 wet days and about 10 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 64°F through the month. The sky is clear or mostly clear about 49% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Temecula's 11th-clearest and 6th-windiest month. For the whole year in context, see Temecula's year-round climate.

Daytime high
64°
11th warmest
Overnight low
45°
2nd coldest
Rainfall
2.7 in
5.8 wet days
Daylight
10 hours
6:58 AM – 4:58 PM
Cloud cover
46%
11th clearest
Wind
4 mph
6th windiest
Solar energy
3.24 kWh/m²
Travel score
6.5
out of 10

Temecula is city in Riverside County, California, United States.

Density
1,408/km²
people per km²
Founded
1989

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 64°F through the month.

A typical January day in Temecula reaches about 64°F in the afternoon and slips back to 45°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 74°F. Set against its neighbours, January runs on par with December and on par with February.

30°40°50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16344
26344
36344
46344
56344
66344
76344
86344
96345
106345
116445
126445
136445
146445
156445
166445
176445
186445
196445
206445
216445
226445
236445
246445
256445
266445
276445
286445
296445
306445
316445

Temecula weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan64° / 45°2.75.8106.5
Feb64° / 46°3.4710.86.2
Mar66° / 49°2.0611.76.9
Apr69° / 52°1.03.512.87.8
May73° / 56°0.42.113.78.5
Jun79° / 60°0.10.614.28.9
Jul85° / 65°0.20.8147.2
Aug86° / 67°0.10.613.26.6
Sep84° / 64°0.2112.27.5
Oct77° / 58°0.72.711.28.6
Nov70° / 50°1.03.110.38.0
Dec63° / 45°2.04.99.86.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
25941
35941
45941
56040
66040
76040
86040
96139
106238
116238
126238
136238
146238
156238
166139
176139
186139
196139
206139
216040
226040
236040
245941
255941
265941
275941
286139
296139
306139
316139

Chance of precipitation in January

Any precipitation

Temecula gets around 2.7 in of rain over 5.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
419
519
619
719
819
919
1018
1118
1218
1318
1418
1518
1618
1718
1818
1918
2018
2118
2218
2318
2418
2518
2618
2719
2819
2919
3019
3119

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 4 mph in January.

Across January, 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 January

DaylightNight

Daylight runs from about 9 h 48 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 6:57 AM to 6:52 AM, and sunset from 4:46 PM to 5:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.86:574:46
29.86:584:47
39.86:584:48
49.86:584:48
59.96:584:49
69.96:584:50
79.96:584:51
89.96:584:51
99.96:584:52
109.96:584:53
119.96:584:54
129.96:584:55
1310.06:584:55
1410.06:584:56
1510.06:584:57
1610.06:584:58
1710.06:574:59
1810.06:575:00
1910.16:575:01
2010.16:575:02
2110.16:565:03
2210.16:565:03
2310.16:565:04
2410.26:555:05
2510.26:555:06
2610.26:555:07
2710.26:545:08
2810.36:545:09
2910.36:535:10
3010.36:525:11
3110.36:525:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.24 kWh/m².

For context, solar energy here swings from a low near 3.06 kWh/m² to a high of 8.04 kWh/m² in June across the year — January's 3.24 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.3Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.7Moderate
Planning a trip in January

Is January a good time to visit Temecula?

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

6.5
Sightseeing
11th-best month of the year
1.9
Beach & pool
11th-best month of the year

January is a reasonable time to visit Temecula for sightseeing.

What to pack for Temecula in January

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

In January, Temecula sees daytime highs around 64°F and nights near 45°F. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Temecula in January

The nearest coast averages about 59°F in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 mi away) is warmest in August at about 71°F and coldest in January near 59°F.

It's comfortable for a long swim from Jul 5 to Oct 7 — about 3.1 months when the water holds above 68°F.

60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb59Cool
Mar60Cool
Apr61Cool
May64Cool
Jun66Cool
Jul69Refreshing
Aug71Refreshing
Sep70Refreshing
Oct67Cool
Nov64Cool
Dec61Cool

UV index in Temecula in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Temecula peaks around July 12 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 highHighModerateJul 12UV 11Dec 17UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Temecula in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Temecula is worst in September — around 40 µg/m³ PM2.5 (poor), about 5.4× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Dec 207 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr10Good
May8Good
Jun19Moderate
Jul12Moderate
Aug20Moderate
Sep40Poor
Oct10Good
Nov8Good
Dec7Good
Location & terrain

Where is Temecula?

Temecula sits at 33.5°N, 117.1°W, 1,017 ft above sea level, in United States. The nearest listed city is Murrieta, 5.6 mi away.

Topography around Temecula

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

Within 2 miles, the terrain around Temecula has significant variations in elevation — a maximum elevation change of 948 ft around an average of 1,191 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 4,029 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 11,417 ft.

The land around Temecula is covered by artificial surfaces (40%) and trees (34%) within 2 miles, trees (32%), shrubs (25%) and grassland (23%) within 10 miles, and shrubs (28%) within 50 miles.

2 miles
948 ft
10 miles
4,029 ft
50 miles
11,417 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Murrieta 5.6 mi · Fallbrook 9.9 mi · Wildomar 11 mi · Sun City 15 mi · Lake Elsinore 16 mi · Menifee 16 mi · Hemet 21 mi · Perris 21 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 Temecula (33.4936°, -117.1484°, elevation 1,017 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).