Reynosa weather in December

In December, Reynosa sees average daytime highs of 23°C and overnight lows near 12°C, with 30 mm of precipitation across 5 wet days and about 10.4 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 40% 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 Reynosa's 11th-clearest and 9th-windiest month. For the whole year in context, see Reynosa's year-round climate.

Daytime high
23°
11th warmest
Overnight low
12°
2nd coldest
Precipitation
30 mm
5 wet days
Daylight
10 h 24 min
7:18 AM – 5:41 PM
Cloud cover
54%
11th clearest
Wind
16 km/h
9th windiest
Solar energy
3.1 kWh/m²
Travel score
7.6
out of 10

Reynosa is municipal seat of Reynosa, State of Tamaulipas, Mexico.

Founded
1749

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 24°C in the first days to 22°C by the end.

A typical December day in Reynosa reaches about 23°C in the afternoon and slips back to 12°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 29°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)
12414
22414
32414
42413
52413
62413
72413
82413
92413
102313
112313
122313
132313
142312
152312
162312
172312
182312
192312
202212
212212
222212
232212
242212
252212
262211
272211
282211
292211
302211
312211

How December really feels in Reynosa

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.

Reynosa weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 12°264.410.67.6
Feb25° / 14°244.311.17.8
Mar28° / 17°365.511.86.8
Apr31° / 20°455.612.65.1
May33° / 23°496.613.33.6
Jun35° / 25°526.813.62.5
Jul36° / 25°546.113.52.2
Aug36° / 25°396.712.92.0
Sep34° / 24°8912.212.23.1
Oct31° / 20°60711.45.2
Nov26° / 16°365.310.77.5
Dec23° / 12°30510.47.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35545
45446
55446
65347
75248
85149
95149
105248
115248
125149
135149
145248
155248
165248
175347
185347
195347
205347
215347
225248
235248
245149
255149
265149
274951
284951
294951
304852
314852

Chance of precipitation in December

Any precipitation

Reynosa gets around 30 mm of rain and snow over 5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 16% and peaks near 17% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
415
515
615
715
815
916
1016
1117
1217
1317
1417
1517
1617
1717
1817
1917
2017
2117
2217
2317
2417
2517
2617
2717
2817
2916
3016
3116

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1441518202
2451518202
3461518202
4471417192
5481417192
6491417192
7501317182
8501317182
9521217172
10531217171
11541216171
12551216161
13561116161
14571116151
15581116141
16581116141
17581216131
18591215131
19601215121
20601215121
21601315111
22611315110
23611415100
24611415100
2562141590
2662151490
2762151490
2862151490
2963151480
3062161480
3162161480

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

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 7:08 AM to 7:25 AM, and sunset from 5:37 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.57:085:37
210.57:095:38
310.57:105:38
410.57:105:38
510.47:115:38
610.47:125:38
710.47:125:38
810.47:135:38
910.47:145:39
1010.47:145:39
1110.47:155:39
1210.47:165:39
1310.47:165:40
1410.47:175:40
1510.47:175:40
1610.47:185:41
1710.47:195:41
1810.47:195:41
1910.47:205:42
2010.47:205:42
2110.47:215:43
2210.47:215:43
2310.47:225:44
2410.47:225:44
2510.47:225:45
2610.47:235:45
2710.47:235:46
2810.47:245:46
2910.47:245:47
3010.47:245:47
3110.47:255:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.1 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.1 kWh/m² to a high of 6.79 kWh/m² in July across the year — December's 3.1 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in December

Is December a good time to visit Reynosa?

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

7.6
Sightseeing
2nd-best month of the year
5.9
Beach & pool
8th-best month of the year

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

What to pack for Reynosa in December

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

In December, Reynosa sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Reynosa 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 Reynosa peaks around June 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeExtremeVery highHighJun 21UV 12Dec 22UV 5
UV index (midday)Level
Jan5Moderate
Feb7Very high
Mar8Very high
Apr11Extreme
May9Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Reynosa 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 Reynosa is worst in July — around 26 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1625 µg/m³Nov 107 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr13Moderate
May20Moderate
Jun21Moderate
Jul26Moderate
Aug19Moderate
Sep12Moderate
Oct8Good
Nov7Good
Dec9Good
Location & terrain

Where is Reynosa?

Reynosa sits at 26.1°N, 98.3°W, 38 m above sea level, in Mexico. The nearest listed city is McAllen, 15 km away.

Topography around Reynosa

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

Within 3 km, the terrain around Reynosa has only modest variations in elevation — a maximum elevation change of 34 m around an average of 37 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 85 m; within 80 km, significant variations in elevation — a maximum elevation change of 310 m.

The land around Reynosa is covered by artificial surfaces (69%) and trees (22%) within 3 km, trees (28%), cropland (25%) and artificial surfaces (24%) within 16 km, and cropland (39%) and shrubs (21%) within 80 km.

3 km
34 m
16 km
85 m
80 km
310 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: McAllen 15 km · Mission 16 km · Pharr 16 km · San Juan 18 km · Alamo 20 km · Ciudad Río Bravo 22 km · Alton 23 km · Donna 25 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 Reynosa (26.08°, -98.2846°, elevation 38 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).