Montemorelos weather in December

In December, Montemorelos sees average daytime highs of 21°C and overnight lows near 10°C, with 24 mm of precipitation across 4.2 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 22°C in the first days to 20°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 30 min by month's end. Set against the rest of the year, December is Montemorelos's 8th-clearest and 11th-windiest month. For the whole year in context, see Montemorelos's year-round climate.

Daytime high
21°
11th warmest
Overnight low
10°
2nd coldest
Precipitation
24 mm
4.2 wet days
Daylight
10 h 24 min
7:22 AM – 5:49 PM
Cloud cover
46%
8th clearest
Wind
7 km/h
11th windiest
Solar energy
3.57 kWh/m²
Travel score
7.6
out of 10

Montemorelos is municipal seat of Montemorelos, State of Nuevo León, Mexico.

Density
40/km²
people per km²
Founded
1665

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 22°C in the first days to 20°C by the end.

A typical December day in Montemorelos reaches about 21°C in the afternoon and slips back to 10°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 28°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)
12311
22311
32211
42211
52211
62211
72211
82211
92210
102210
112210
122210
132110
142110
152110
162110
172110
182110
192110
202110
21219
22219
23219
24219
25209
26209
27209
28209
29209
30209
31209

How December really feels in Montemorelos

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.

Montemorelos 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
Jan21° / 305.310.67.3
Feb24° / 11°325.811.17.7
Mar27° / 14°486.511.87.2
Apr30° / 18°657.612.65.5
May32° / 21°768.813.24.1
Jun34° / 22°677.613.53.3
Jul35° / 22°656.413.42.9
Aug35° / 23°587.712.92.8
Sep31° / 21°16713.412.24.2
Oct28° / 17°777.911.46.5
Nov24° / 13°335.410.87.9
Dec21° / 10°244.210.57.6

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 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26337
36337
46238
56238
66139
76139
86139
96238
106238
116139
126238
136238
146238
156238
166337
176337
186337
196337
206238
216337
226238
236238
246139
256139
266040
276040
286040
295941
305842
315842

Chance of precipitation in December

Any precipitation

Montemorelos gets around 24 mm of rain and snow over 4.2 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 14% and peaks near 15% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
412
513
613
713
813
913
1013
1113
1213
1313
1413
1513
1613
1713
1814
1914
2014
2114
2214
2314
2415
2515
2615
2715
2815
2915
3015
3115

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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1612613
2612613
3622513
4632512
5642412
6652312
7652312
8662212
9682111
10692011
11701911
12721810
13731710
14741610
1575169
1677158
1777158
1878157
1979147
2080146
2180146
2281136
2382135
2482135
2583134
2683134
2783143
2883143
2983143
3084142
3184142

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 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
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 30 min at the start of December to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 7:13 AM to 7:29 AM, and sunset from 5:45 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.57:135:45
210.57:135:45
310.57:145:46
410.57:155:46
510.57:155:46
610.57:165:46
710.57:175:46
810.57:175:46
910.57:185:47
1010.57:195:47
1110.57:195:47
1210.57:205:47
1310.57:215:48
1410.47:215:48
1510.47:225:48
1610.47:225:49
1710.47:235:49
1810.47:235:49
1910.47:245:50
2010.47:245:50
2110.47:255:51
2210.47:255:51
2310.47:265:52
2410.47:265:52
2510.47:275:53
2610.47:275:53
2710.47:285:54
2810.47:285:54
2910.47:285:55
3010.47:295:55
3110.57:295:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.57 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.57 kWh/m² to a high of 6.79 kWh/m² in July across the year — December's 3.57 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.6Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.6Moderate
Planning a trip in December

Is December a good time to visit Montemorelos?

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

7.6
Sightseeing
3rd-best month of the year
4.8
Beach & pool
11th-best month of the year

December is one of the better times to visit Montemorelos for general sightseeing.

What to pack for Montemorelos in December

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

In December, Montemorelos sees daytime highs around 21°C and nights near 10°C. Little to plan around — just the basics. About 4 days see rain.

UV index in Montemorelos 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 Montemorelos 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 Montemorelos 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 Montemorelos 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 Montemorelos?

Montemorelos sits at 25.2°N, 99.8°W, 422 m above sea level, in Mexico. The nearest listed city is Ciudad de Allende, 22 km away.

Topography around Montemorelos

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

Within 3 km, the terrain around Montemorelos has only modest variations in elevation — a maximum elevation change of 130 m around an average of 419 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 593 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,583 m.

The land around Montemorelos is covered by trees (42%) and artificial surfaces (30%) within 3 km, trees (59%) and shrubs (21%) within 16 km, and shrubs (44%) and trees (40%) within 80 km.

3 km
130 m
16 km
593 m
80 km
3,583 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ciudad de Allende 22 km · Santiago 42 km · Linares 45 km · Cadereyta 46 km · Cadereyta Jiménez 48 km · Ciudad Benito Juárez 57 km · Jardines de la Silla 61 km · Guadalupe 69 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 Montemorelos (25.189°, -99.8293°, elevation 422 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).