Mexicali weather in January

In January, Mexicali sees average daytime highs of 22°C and overnight lows near 9°C, with 9 mm of rain across 1.7 wet days and about 10.1 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 61% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of January to 10 h 24 min by month's end. Set against the rest of the year, January is Mexicali's 11th-clearest and 9th-windiest month. For the whole year in context, see Mexicali's year-round climate.

Daytime high
22°
11th warmest
Overnight low
2nd coldest
Rainfall
9 mm
1.7 wet days
Daylight
10 h 06 min
6:49 AM – 4:53 PM
Cloud cover
34%
11th clearest
Wind
7 km/h
9th windiest
Solar energy
3.61 kWh/m²
Travel score
8.4
out of 10

Mexicali is capital of the State of Baja California, Mexico.

Air quality
High
PM2.5 25.5 µg/m³ · 2018
Density
9,059/km²
people per km²
Founded
1901

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical January day in Mexicali reaches about 22°C in the afternoon and slips back to 9°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, January runs about 1°C warmer than December and about 2°C cooler than February.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1218
2218
3218
4218
5218
6218
7218
8218
9218
10219
11229
12229
13229
14229
15229
16229
17229
18229
19229
20229
21229
22229
23229
24239
25239
26239
27239
28239
29239
30239
31239

How January really feels in Mexicali

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Mexicali 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 (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 91.710.18.4
Feb24° / 10°12210.88.7
Mar28° / 12°81.111.87.9
Apr31° / 15°30.512.85.8
May36° / 19°10.213.73.1
Jun40° / 23°0014.10.4
Jul43° / 27°51.513.90.0
Aug42° / 28°92.513.20.0
Sep39° / 24°91.412.20.8
Oct33° / 18°50.711.24.8
Nov26° / 12°40.610.38.6
Dec21° / 91.59.98.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27129
37228
47228
57228
67228
77228
87228
97327
107426
117426
127525
137525
147525
157525
167624
177624
187624
197624
207624
217525
227525
237525
247525
257624
267624
277624
287525
297525
307525
317624

Chance of precipitation in January

Any precipitation

Mexicali gets around 9 mm of rain over 1.7 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 5% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
135
145
155
165
175
185
195
205
215
224
234
244
254
264
274
284
294
305
315

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 54 min at the start of January to 10 h 24 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 6:48 AM to 6:43 AM, and sunset from 4:42 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:484:42
29.96:494:42
39.96:494:43
49.96:494:44
59.96:494:44
69.96:494:45
79.96:494:46
810.06:494:47
910.06:494:47
1010.06:494:48
1110.06:494:49
1210.06:494:50
1310.06:494:51
1410.06:494:52
1510.16:494:52
1610.16:494:53
1710.16:494:54
1810.16:494:55
1910.16:484:56
2010.16:484:57
2110.26:484:58
2210.26:474:59
2310.26:474:59
2410.26:475:00
2510.26:465:01
2610.36:465:02
2710.36:465:03
2810.36:455:04
2910.36:455:05
3010.46:445:06
3110.46:435:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.61 kWh/m².

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 8.52 kWh/m² in June across the year — January's 3.61 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.4Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.9Moderate
253.9Moderate
263.9Moderate
274.0Moderate
284.0Moderate
294.0Bright
304.0Bright
314.1Bright
Planning a trip in January

Is January a good time to visit Mexicali?

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

8.4
Sightseeing
3rd-best month of the year
5.7
Beach & pool
7th-best month of the year

January is one of the better times to visit Mexicali for general sightseeing.

What to pack for Mexicali in January

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

In January, Mexicali sees daytime highs around 22°C and nights near 9°C. Little to plan around — just the basics.

UV index in Mexicali 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 Mexicali peaks around June 21 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highExtremeVery highHighModerateJun 21UV 11Dec 18UV 3
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar5Moderate
Apr8Very high
May8Very high
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Mexicali 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 Mexicali is worst in June — around 33 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Mexicali's WHO annual average of 25.5 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2133 µg/m³Nov 1121 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb25Moderate
Mar26Moderate
Apr24Moderate
May21Moderate
Jun33Moderate
Jul31Moderate
Aug25Moderate
Sep26Moderate
Oct22Moderate
Nov21Moderate
Dec26Moderate
Location & terrain

Where is Mexicali?

Mexicali sits at 32.6°N, 115.5°W, 4 m above sea level, in Mexico. The nearest listed city is Calexico, 7.0 km away.

Topography around Mexicali

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mexicali.

Within 3 km, the terrain around Mexicali has only modest variations in elevation — a maximum elevation change of 22 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 125 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,923 m.

The land around Mexicali is covered by artificial surfaces (91%) within 3 km, cropland (40%), bare terrain (32%) and artificial surfaces (21%) within 16 km, and bare terrain (57%) and cropland (20%) within 80 km.

3 km
22 m
16 km
125 m
80 km
1,923 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Calexico 7.0 km · Santa Isabel 11 km · Puebla 12 km · El Centro 21 km · Imperial 27 km · Brawley 40 km · Ciudad Guadalupe Victoria 50 km · San Luis 65 km

Mexico travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 / 127 V · 60 Hz
Prices
≈ 54% of US
price level, 2025
GDP per capita
$13,889
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
24.9
per 100k, 2023
Road deaths
12.8
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 440
Religion
Catholic 78%no religion 11%other Evangelical Churches 8%Jehovah Witness 1%

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 Mexicali (32.6278°, -115.4545°, elevation 4 m), 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).