Ciudad de Allende weather in December

In December, Ciudad de Allende sees average daytime highs of 19°C and overnight lows near 8°C, with 38 mm of precipitation across 6.4 wet days and about 10.5 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 18°C by the end. The sky is clear or mostly clear about 49% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 30 min at the start of December to 10 h 24 min by month's end. Set against the rest of the year, December is Ciudad de Allende's 7th-clearest and 9th-windiest month. For the whole year in context, see Ciudad de Allende's year-round climate.

Daytime high
19°
11th warmest
Overnight low
2nd coldest
Precipitation
38 mm
6.4 wet days
Daylight
10 h 24 min
7:23 AM – 5:49 PM
Cloud cover
46%
7th clearest
Wind
5 km/h
9th windiest
Solar energy
3.69 kWh/m²
Travel score
6.8
out of 10

Ciudad de Allende is municipal seat of Allende, State of Nuevo León, Mexico.

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 20°C in the first days to 18°C by the end.

A typical December day in Ciudad de Allende reaches about 19°C in the afternoon and slips back to 8°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 25°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1209
2209
3209
4209
5209
6209
7208
8208
9198
10198
11198
12198
13198
14198
15198
16198
17198
18198
19197
20197
21197
22187
23187
24187
25187
26187
27187
28187
29187
30187
31187

How December really feels in Ciudad de Allende

Once humidity and wind are folded in, December 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

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

Ciudad de Allende weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 487.910.66.5
Feb21° / 639.111.16.7
Mar23° / 11°9512.311.86.8
Apr26° / 14°12913.412.66.2
May28° / 17°12213.613.25.5
Jun30° / 19°779.413.55.2
Jul31° / 19°788.413.45.0
Aug31° / 19°63912.94.9
Sep28° / 18°19515.612.25.5
Oct25° / 15°1021011.47.1
Nov22° / 11°53810.87.2
Dec19° / 386.410.56.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26238
36238
46139
56139
66040
76040
86139
96040
106139
116139
126139
136238
146337
156337
166337
176436
186337
196337
206337
216238
226238
236238
246139
256040
265941
275941
285941
295941
305842
315743

Chance of precipitation in December

Any precipitation

Ciudad de Allende gets around 38 mm of rain and snow over 6.4 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 23% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
120
220
320
420
520
620
720
820
920
1020
1120
1220
1320
1420
1521
1621
1721
1821
1921
2021
2122
2222
2322
2422
2522
2622
2722
2823
2923
3023
3123

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
174233
275232
376222
476222
576222
678211
778211
878211
979201
1080191
1180191
1281181
1382171
1483161
1583161
1684151
1785141
1886131
1986131
2087121
2187121
2288111
2390100
2490100
259190
269190
279190
289280
299280
309370
319370

Wind in December

Winds average 5 km/h in December.

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

0246810151015202531
Wind speed (km/h)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 10 h 30 min at the start of December to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 7:14 AM to 7:30 AM, and sunset from 5:46 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.57:145:46
210.57:145:46
310.57:155:46
410.57:165:46
510.57:165:46
610.57:175:47
710.57:185:47
810.57:185:47
910.57:195:47
1010.57:205:47
1110.57:205:48
1210.57:215:48
1310.47:215:48
1410.47:225:49
1510.47:235:49
1610.47:235:49
1710.47:245:50
1810.47:245:50
1910.47:255:50
2010.47:255:51
2110.47:265:51
2210.47:265:52
2310.47:275:52
2410.47:275:53
2510.47:285:53
2610.47:285:54
2710.47:285:54
2810.47:295:55
2910.47:295:55
3010.47:305:56
3110.47:305:57

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.69 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.74 kWh/m² in June across the year — December's 3.69 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.7Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in December

Is December a good time to visit Ciudad de Allende?

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

6.8
Sightseeing
3rd-best month of the year
2.9
Beach & pool
11th-best month of the year

December is a reasonable time to visit Ciudad de Allende for sightseeing.

What to pack for Ciudad de Allende in December

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

In December, Ciudad de Allende sees daytime highs around 19°C and nights near 8°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

UV index in Ciudad de Allende in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ciudad de Allende peaks around June 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 19UV 12Dec 19UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep10Extreme
Oct9Very high
Nov6High
Dec5High

Air quality in Ciudad de Allende 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 Ciudad de Allende is worst in May — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1919 µg/m³Oct 2113 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar15Moderate
Apr15Moderate
May19Moderate
Jun17Moderate
Jul18Moderate
Aug16Moderate
Sep16Moderate
Oct13Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Ciudad de Allende?

Ciudad de Allende sits at 25.3°N, 100.0°W, 469 m above sea level, in Mexico. The nearest listed city is Santiago, 21 km away.

Topography around Ciudad de Allende

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

Within 3 km, the terrain around Ciudad de Allende has only modest variations in elevation — a maximum elevation change of 147 m around an average of 456 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,478 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,555 m.

The land around Ciudad de Allende is covered by trees (45%) and artificial surfaces (26%) within 3 km, trees (76%) within 16 km, and shrubs (43%) and trees (38%) within 80 km.

3 km
147 m
16 km
2,478 m
80 km
3,555 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Santiago 21 km · Montemorelos 22 km · Cadereyta 34 km · Cadereyta Jiménez 34 km · Ciudad Benito Juárez 41 km · Jardines de la Silla 42 km · Guadalupe 50 km · Monterrey 54 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 Ciudad de Allende (25.2812°, -100.0193°, elevation 469 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).