Cárdenas weather in December

In December, Cárdenas sees average daytime highs of 22°C and overnight lows near 11°C, with 9 mm of precipitation across 2.3 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 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 43% of the time in December, and the air most often feels dry.

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 Cárdenas's 6th-clearest and 11th-windiest month. For the whole year in context, see Cárdenas's year-round climate.

Daytime high
22°
11th warmest
Overnight low
11°
2nd coldest
Precipitation
9 mm
2.3 wet days
Daylight
10 h 42 min
7:15 AM – 5:55 PM
Cloud cover
50%
6th clearest
Wind
6 km/h
11th windiest
Solar energy
3.75 kWh/m²
Travel score
7.9
out of 10

Cárdenas is municipal seat of Cárdenas, State of San Luis Potosí, 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 23°C in the first days to 21°C by the end.

A typical December day in Cárdenas reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 28°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)
12312
22312
32312
42312
52312
62312
72312
82212
92211
102211
112211
122211
132211
142211
152211
162211
172211
182211
192211
202211
212211
222211
232111
242111
252111
262111
272111
282111
292110
302110
312110

Cárdenas 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° / 10°133.410.87.7
Feb24° / 12°143.411.28.0
Mar27° / 15°194.611.87.5
Apr29° / 17°25612.55.9
May31° / 19°4210.9134.8
Jun30° / 20°9116.513.34.4
Jul29° / 19°1031613.24.8
Aug29° / 19°9216.712.84.8
Sep27° / 19°14119.112.15.0
Oct26° / 16°7110.811.56.7
Nov24° / 13°235.210.97.9
Dec22° / 11°92.310.77.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26535
36436
46436
56337
66238
76238
86139
96040
106040
115941
125941
135941
145842
155842
165743
175743
185743
195743
205644
215545
225545
235446
245446
255248
265248
275248
285248
295248
305248
315347

Chance of precipitation in December

Any precipitation

Cárdenas gets around 9 mm of rain and snow over 2.3 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 8% and peaks near 10% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
19
29
38
48
57
67
77
86
96
106
116
126
136
146
156
166
177
187
197
208
218
228
239
249
259
2610
2710
2810
2910
3010
3110

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1533710
2533710
354379
455369
556368
656368
757367
857367
958366
1058366
1160355
1260355
1361345
1463334
1564324
1666313
1767303
1868293
1969283
2071272
2171272
2272262
2373252
2474242
2574242
2676231
2776231
2876231
2976231
3076231
3176231

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 7:06 AM to 7:22 AM, and sunset from 5:51 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:065:51
210.77:065:51
310.77:075:51
410.77:085:51
510.77:085:51
610.77:095:52
710.77:105:52
810.77:105:52
910.77:115:52
1010.77:115:53
1110.77:125:53
1210.77:135:53
1310.77:135:54
1410.77:145:54
1510.77:145:54
1610.77:155:55
1710.77:155:55
1810.77:165:55
1910.77:165:56
2010.77:175:56
2110.77:175:57
2210.77:185:57
2310.77:185:58
2410.77:195:58
2510.77:195:59
2610.77:205:59
2710.77:206:00
2810.77:206:00
2910.77:216:01
3010.77:216:01
3110.77:226:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.75 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 6.42 kWh/m² in May across the year — December's 3.75 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
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

Hazard calendar for Cárdenas

In seasonPeak

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

Cárdenas's rainy season runs June–October, when most of the year's rain falls.

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

Is December a good time to visit Cárdenas?

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

7.9
Sightseeing
2nd-best month of the year
5.5
Beach & pool
10th-best month of the year

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

What to pack for Cárdenas in December

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

In December, Cárdenas sees daytime highs around 22°C and nights near 11°C. Little to plan around — just the basics.

UV index in Cárdenas 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 Cárdenas peaks around June 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJun 18UV 13Dec 17UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr12Extreme
May11Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in Cárdenas 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 Cárdenas is worst in May — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1525 µg/m³Oct 1914 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar16Moderate
Apr20Moderate
May26Moderate
Jun18Moderate
Jul18Moderate
Aug16Moderate
Sep15Moderate
Oct14Moderate
Nov14Moderate
Dec17Moderate
Location & terrain

Where is Cárdenas?

Cárdenas sits at 22.0°N, 99.6°W, 1,220 m above sea level, in Mexico. The nearest listed city is Rioverde, 37 km away.

Topography around Cárdenas

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

Within 3 km, the terrain around Cárdenas has significant variations in elevation — a maximum elevation change of 312 m around an average of 1,252 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 813 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,636 m.

The land around Cárdenas is covered by shrubs (44%) and cropland (26%) within 3 km, shrubs (60%) within 16 km, and trees (43%) and shrubs (42%) within 80 km.

3 km
312 m
16 km
813 m
80 km
2,636 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Rioverde 37 km · Ciudad Fernández 39 km · Ciudad Valles 65 km · Tamuín 89 km · Ciudad Mante 107 km · San Luis de la Paz 119 km · Tamazunchale 121 km · Ébano 133 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 Cárdenas (22.0014°, -99.6425°, elevation 1,220 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).