Ciudad Valles weather in December

In December, Ciudad Valles sees average daytime highs of 25°C and overnight lows near 15°C, with 23 mm of rain across 5.4 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 24°C by the end. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels humid.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Ciudad Valles's 9th-clearest and 9th-windiest month. For the whole year in context, see Ciudad Valles's year-round climate.

Daytime high
25°
11th warmest
Overnight low
15°
2nd coldest
Rainfall
23 mm
5.4 wet days
Daylight
10 h 42 min
7:12 AM – 5:52 PM
Cloud cover
56%
9th clearest
Wind
5 km/h
9th windiest
Solar energy
3.49 kWh/m²
Travel score
7.6
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 24°C by the end.

A typical December day in Ciudad Valles reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12516
22516
32516
42516
52516
62516
72516
82516
92515
102515
112515
122515
132515
142515
152515
162515
172415
182415
192415
202415
212415
222415
232415
242415
252415
262414
272414
282414
292414
302414
312414

How December really feels in Ciudad Valles

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 Valles 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
Jan24° / 14°296.510.87.6
Feb26° / 16°255.511.27.2
Mar30° / 19°37711.85.6
Apr33° / 21°447.512.53.9
May34° / 24°7512.6132.7
Jun34° / 24°16118.513.32.4
Jul33° / 24°16818.513.22.8
Aug33° / 24°15318.812.82.7
Sep32° / 23°22620.812.13.1
Oct30° / 21°12512.711.54.9
Nov27° / 18°458.110.96.9
Dec25° / 15°235.410.77.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35743
45644
55644
65545
75545
85446
95446
105347
115347
125347
135248
145149
155149
165149
175050
185050
195050
204852
214852
224753
234753
244654
254654
264555
274654
284654
294555
304555
314753

Chance of precipitation in December

Any precipitation

Ciudad Valles gets around 23 mm of rain over 5.4 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 rain averages around 18% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
221
321
420
520
619
718
818
917
1017
1117
1216
1316
1416
1516
1616
1716
1816
1916
2017
2117
2217
2318
2418
2518
2618
2718
2818
2919
3019
3119

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1221633282
2221733272
3231733262
4231733251
5241733251
6241833241
7251833241
8251833231
9261832231
10271932221
11271931221
12281931211
13292030201
14302030201
15302130190
16312229190
17312229180
18312328170
19322428170
20322527160
21322627150
22322627150
23322727140
24322827130
25322827130
26322927120
27322927120
28322928110
29332928110
30332828110
31332828110

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 48 min at the start of December to 10 h 42 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 7:03 AM to 7:19 AM, and sunset from 5:48 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:035:48
210.77:045:48
310.77:055:49
410.77:055:49
510.77:065:49
610.77:065:49
710.77:075:49
810.77:085:50
910.77:085:50
1010.77:095:50
1110.77:095:50
1210.77:105:51
1310.77:115:51
1410.77:115:51
1510.77:125:52
1610.77:125:52
1710.77:135:52
1810.77:135:53
1910.77:145:53
2010.77:145:54
2110.77:155:54
2210.77:155:55
2310.77:165:55
2410.77:165:56
2510.77:175:56
2610.77:175:57
2710.77:185:57
2810.77:185:58
2910.77:185:58
3010.77:195:59
3110.77:195:59

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.49 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.49 kWh/m² to a high of 6.03 kWh/m² in August across the year — December's 3.49 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.5Moderate
313.5Moderate
Planning a trip in December

Hazard calendar for Ciudad Valles

In seasonPeak

None of Ciudad Valles's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ciudad Valles's monsoon runs June–October, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Ciudad Valles?

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

7.6
Sightseeing
1st-best month of the year
6.7
Beach & pool
4th-best month of the year

December is one of the better times to visit Ciudad Valles for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ciudad Valles in December

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

In December, Ciudad Valles sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Ciudad Valles in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — 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 Valles peaks around June 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 6 (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 18UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr12Extreme
May10Very high
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep10Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Ciudad Valles 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 Valles is worst in May — around 31 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (October, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1530 µg/m³Oct 2118 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb22Moderate
Mar23Moderate
Apr27Moderate
May31Moderate
Jun25Moderate
Jul24Moderate
Aug20Moderate
Sep19Moderate
Oct18Moderate
Nov18Moderate
Dec22Moderate
Location & terrain

Where is Ciudad Valles?

Ciudad Valles sits at 22.0°N, 99.0°W, 90 m above sea level, in Mexico. The nearest listed city is Tamuín, 24 km away.

Topography around Ciudad Valles

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

Within 3 km, the terrain around Ciudad Valles has only modest variations in elevation — a maximum elevation change of 144 m around an average of 105 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 686 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,888 m.

The land around Ciudad Valles is covered by artificial surfaces (51%) and trees (31%) within 3 km, trees (57%) and grassland (25%) within 16 km, and trees (46%) and grassland (25%) within 80 km.

3 km
144 m
16 km
686 m
80 km
2,888 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Tamuín 24 km · Cárdenas 65 km · Ébano 70 km · Ciudad Mante 83 km · Tamazunchale 85 km · Pánuco 86 km · Rioverde 102 km · Ciudad Fernández 103 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 Valles (21.9963°, -99.0109°, elevation 90 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).