Ciudad Río Bravo weather in December

In December, Ciudad Río Bravo sees average daytime highs of 23°C and overnight lows near 13°C, with 31 mm of precipitation across 5.2 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 37% 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 Ciudad Río Bravo's 11th-clearest and 9th-windiest month. For the whole year in context, see Ciudad Río Bravo's year-round climate.

Daytime high
23°
11th warmest
Overnight low
13°
2nd coldest
Precipitation
31 mm
5.2 wet days
Daylight
10 h 24 min
7:17 AM – 5:40 PM
Cloud cover
56%
11th clearest
Wind
16 km/h
9th windiest
Solar energy
3.03 kWh/m²
Travel score
7.6
out of 10

Ciudad Río Bravo is municipal seat of Río Bravo, State of Tamaulipas, 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 24°C in the first days to 22°C by the end.

A typical December day in Ciudad Río Bravo reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°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
42414
52414
62413
72413
82413
92313
102313
112313
122313
132313
142313
152313
162312
172312
182312
192312
202212
212212
222212
232212
242212
252212
262212
272212
282212
292212
302212
312211

How December really feels in Ciudad Río Bravo

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 Río Bravo 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°285.210.67.4
Feb25° / 14°244.611.17.7
Mar27° / 17°365.711.87.0
Apr30° / 20°435.612.65.4
May33° / 23°476.713.33.9
Jun35° / 25°557.713.62.8
Jul36° / 25°58713.52.4
Aug36° / 25°44812.92.2
Sep33° / 24°941312.23.3
Oct30° / 20°627.611.45.3
Nov26° / 16°375.910.77.4
Dec23° / 13°315.210.47.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35446
45347
55248
65248
75149
85149
95050
105149
115149
125149
135149
145149
155248
165248
175347
185347
195248
205347
215248
225248
235149
245050
255050
264951
274852
284852
294753
304753
314753

Chance of precipitation in December

Any precipitation

Ciudad Río Bravo gets around 31 mm of rain and snow over 5.2 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 17% and peaks near 18% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
116
216
316
416
516
616
716
816
916
1017
1117
1217
1317
1417
1517
1617
1717
1817
1917
2017
2117
2217
2317
2417
2517
2617
2717
2818
2918
3018
3118

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 53% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1421518224
2431518213
3431518213
4441417213
5451417213
6461417203
7471317203
8481317203
9491217193
10511216192
11511216192
12531116182
13531116182
14541116172
15541116172
16551116162
17581115151
18581115151
19591115141
20591115141
21591215131
22591215131
23591315121
24591315121
25591415111
26591415111
27601415101
28591515101
29591515101
30591515101
31591515101

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 7:07 AM to 7:24 AM, and sunset from 5:37 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.57:075:37
210.57:085:37
310.57:095:37
410.57:095:37
510.57:105:37
610.47:115:37
710.47:115:38
810.47:125:38
910.47:135:38
1010.47:135:38
1110.47:145:38
1210.47:155:39
1310.47:155:39
1410.47:165:39
1510.47:165:40
1610.47:175:40
1710.47:185:40
1810.47:185:41
1910.47:195:41
2010.47:195:42
2110.47:205:42
2210.47:205:43
2310.47:215:43
2410.47:215:44
2510.47:215:44
2610.47:225:45
2710.47:225:45
2810.47:235:46
2910.47:235:46
3010.47:235:47
3110.47:245:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.03 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 6.74 kWh/m² in July across the year — December's 3.03 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.0Moderate
113.0Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in December

Is December a good time to visit Ciudad Río Bravo?

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
5.8
Beach & pool
9th-best month of the year

December is one of the better times to visit Ciudad Río Bravo for general sightseeing.

What to pack for Ciudad Río Bravo in December

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

In December, Ciudad Río Bravo sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Ciudad Río Bravo 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 Ciudad Río Bravo 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 highExtremeVery highExtremeVery highHighJun 21UV 12Dec 22UV 5
UV index (midday)Level
Jan5Moderate
Feb7High
Mar8Very high
Apr11Extreme
May9Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Ciudad Río Bravo 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 Río Bravo 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 Ciudad Río Bravo?

Ciudad Río Bravo sits at 26.0°N, 98.1°W, 26 m above sea level, in Mexico. The nearest listed city is Donna, 21 km away.

Topography around Ciudad Río Bravo

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

Within 3 km, the terrain around Ciudad Río Bravo has only modest variations in elevation — a maximum elevation change of 14 m around an average of 29 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 39 m; within 80 km, significant variations in elevation — a maximum elevation change of 310 m.

The land around Ciudad Río Bravo is covered by artificial surfaces (45%) and cropland (40%) within 3 km, cropland (75%) within 16 km, and cropland (45%) within 80 km.

3 km
14 m
16 km
39 m
80 km
310 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Donna 21 km · Weslaco 22 km · Reynosa 22 km · Alamo 22 km · San Juan 24 km · Pharr 25 km · Mercedes 25 km · McAllen 28 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 Río Bravo (25.9851°, -98.0896°, elevation 26 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).