Tamuín weather in December

In December, Tamuín sees average daytime highs of 25°C and overnight lows near 16°C, with 25 mm of rain across 5.6 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 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 34% 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 Tamuín's 10th-clearest and 9th-windiest month. For the whole year in context, see Tamuín's year-round climate.

Daytime high
25°
11th warmest
Overnight low
16°
2nd coldest
Rainfall
25 mm
5.6 wet days
Daylight
10 h 42 min
7:11 AM – 5:51 PM
Cloud cover
57%
10th clearest
Wind
6 km/h
9th windiest
Solar energy
3.39 kWh/m²
Travel score
7.5
out of 10

Tamuín is municipal seat of Tamuín, State of San Luis Potosí, Mexico.

Density
7/km²
people per km²
Founded
1741

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 26°C in the first days to 24°C by the end.

A typical December day in Tamuín reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52616
62616
72616
82616
92616
102516
112516
122516
132516
142516
152516
162516
172516
182516
192516
202515
212515
222515
232515
242515
252515
262415
272415
282415
292415
302415
312415

How December really feels in Tamuín

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.

Tamuín 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
Jan25° / 15°346.810.87.4
Feb27° / 17°265.411.27.0
Mar30° / 19°366.811.85.3
Apr33° / 22°467.212.53.6
May35° / 24°7411.7132.5
Jun35° / 25°15818.713.32.2
Jul34° / 24°1641913.22.6
Aug34° / 24°1361812.82.6
Sep32° / 24°19620.112.12.9
Oct30° / 21°11612.311.54.7
Nov27° / 18°478.210.96.7
Dec25° / 16°255.610.77.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% 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 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35545
45545
55545
65446
75347
85347
95347
105248
115248
125248
135149
145050
155050
165050
174951
184951
194852
204753
214753
224654
234654
244555
254456
264456
274456
284456
294456
304456
314555

Chance of precipitation in December

Any precipitation

Tamuín gets around 25 mm of rain over 5.6 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 19% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
221
321
420
520
620
719
819
919
1019
1118
1218
1318
1417
1517
1617
1717
1817
1917
2017
2117
2217
2318
2418
2518
2619
2719
2819
2919
3019
3120

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 28% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1211426326
2221427326
3221427316
4231427316
5231427316
6241426305
7241526305
8251526305
9261525305
10271525294
11271524294
12281624284
13291624283
14291724273
15301724263
16301824262
17301924252
18302024242
19312124231
20312224221
21302324211
22302424201
23302525191
24302625181
25302626171
26302726171
27302726161
28302727161
29302727161
30302727160
31302727150

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 7:02 AM to 7:18 AM, and sunset from 5:47 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:025:47
210.77:035:48
310.77:045:48
410.77:045:48
510.77:055:48
610.77:065:48
710.77:065:48
810.77:075:49
910.77:075:49
1010.77:085:49
1110.77:095:49
1210.77:095:50
1310.77:105:50
1410.77:105:50
1510.77:115:51
1610.77:115:51
1710.77:125:52
1810.77:125:52
1910.77:135:52
2010.77:135:53
2110.77:145:53
2210.77:145:54
2310.77:155:54
2410.77:155:55
2510.77:165:55
2610.77:165:56
2710.77:175:56
2810.77:175:57
2910.77:175:57
3010.77:185:58
3110.77:185:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.39 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.92 kWh/m² in August across the year — December's 3.39 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in December

Hazard calendar for Tamuín

In seasonPeak

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

Tamuín'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 Tamuín?

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

7.5
Sightseeing
1st-best month of the year
6.8
Beach & pool
4th-best month of the year

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

What to pack for Tamuín in December

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

In December, Tamuín sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Tamuín 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 Tamuín peaks around June 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeExtremeVery highHighJun 18UV 12Dec 20UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr12Extreme
May9Very high
Jun12Extreme
Jul10Extreme
Aug12Extreme
Sep9Very high
Oct9Very high
Nov6High
Dec6High

Air quality in Tamuín 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 Tamuín 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 Tamuín?

Tamuín sits at 22.0°N, 98.8°W, 27 m above sea level, in Mexico. The nearest listed city is Ciudad Valles, 24 km away.

Topography around Tamuín

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

Within 3 km, the terrain around Tamuín has only modest variations in elevation — a maximum elevation change of 20 m around an average of 23 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 533 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,890 m.

The land around Tamuín is covered by cropland (41%) and grassland (34%) within 3 km, grassland (48%) and trees (28%) within 16 km, and trees (42%) and grassland (35%) within 80 km.

3 km
20 m
16 km
533 m
80 km
2,890 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Ciudad Valles 24 km · Ébano 48 km · Pánuco 62 km · Tamazunchale 83 km · Ciudad Mante 84 km · Cárdenas 89 km · Tantoyuca 93 km · Altamira 97 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 Tamuín (22.0055°, -98.7797°, elevation 27 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).