Heroica Matamoros weather in January

In January, Heroica Matamoros sees average daytime highs of 21°C and overnight lows near 13°C, with 32 mm of rain across 5.7 wet days and about 10.6 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 31% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Heroica Matamoros's 12th-clearest and 7th-windiest month. For the whole year in context, see Heroica Matamoros's year-round climate.

Daytime high
21°
12th warmest
Overnight low
13°
1st coldest
Rainfall
32 mm
5.7 wet days
Daylight
10 h 30 min
7:23 AM – 5:56 PM
Cloud cover
60%
12th clearest
Wind
17 km/h
7th windiest
Solar energy
3.13 kWh/m²
Travel score
7.1
out of 10

Heroica Matamoros is municipal seat of Matamoros, State of Tamaulipas, Mexico.

Founded
1774

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical January day in Heroica Matamoros reaches about 21°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 27°C. Set against its neighbours, January runs about 1°C cooler than December and about 2°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72112
82112
92112
102112
112112
122112
132112
142113
152113
162113
172113
182113
192213
202213
212213
222213
232213
242213
252213
262213
272213
282213
292213
302213
312213

How January really feels in Heroica Matamoros

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Heroica Matamoros weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 13°325.710.67.1
Feb23° / 14°275.311.17.5
Mar26° / 17°385.711.87.4
Apr28° / 20°475.912.66.5
May31° / 23°45713.25.0
Jun33° / 25°5810.313.63.8
Jul33° / 26°648.813.53.5
Aug34° / 26°5210.412.93.2
Sep32° / 24°10815.612.23.7
Oct29° / 21°729.411.45.8
Nov25° / 17°437.610.77.2
Dec22° / 13°345.910.47.3

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34258
44357
54357
64357
74456
84555
94555
104555
114555
124555
134555
144555
154555
164555
174555
184456
194456
204456
214456
224555
234456
244456
254357
264258
274258
284258
294357
304357
314357

Chance of precipitation in January

Any precipitation

Heroica Matamoros gets around 32 mm of rain over 5.7 wet days in January. 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 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
319
419
519
618
718
818
918
1018
1118
1218
1319
1419
1519
1619
1719
1819
1919
2019
2119
2219
2319
2419
2520
2620
2720
2820
2920
3020
3120

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the dry band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1541516141
2541516141
3531517141
4531517141
5531517141
6531517141
7531517141
8531517141
9541517131
10541517131
11541517131
12521618131
13531618121
14521619121
15521619121
16511620121
17511620121
18511620121
19511620121
20501721121
21501721121
22491721121
23491821121
24491821121
25481821120
26481821120
27481920130
28481920131
29481919131
30481919141
31471918141

Wind in January

Winds average 17 km/h in January.

Across January, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 24 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 7:21 AM to 7:20 AM, and sunset from 5:45 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.47:215:45
210.47:215:46
310.47:215:47
410.47:225:47
510.47:225:48
610.47:225:49
710.47:225:49
810.57:225:50
910.57:235:51
1010.57:235:51
1110.57:235:52
1210.57:235:53
1310.57:235:54
1410.57:235:54
1510.57:235:55
1610.57:235:56
1710.67:235:56
1810.67:235:57
1910.67:235:58
2010.67:235:59
2110.67:225:59
2210.67:226:00
2310.67:226:01
2410.77:226:02
2510.77:226:02
2610.77:216:03
2710.77:216:04
2810.77:216:05
2910.77:216:05
3010.87:206:06
3110.87:206:07

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.13 kWh/m².

For context, solar energy here swings from a low near 2.92 kWh/m² to a high of 6.72 kWh/m² in July across the year — January's 3.13 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.9Moderate
53.0Moderate
63.0Moderate
73.0Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.2Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in January

Hazard calendar for Heroica Matamoros

In seasonPeak

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

Heroica Matamoros sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is January a good time to visit Heroica Matamoros?

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

7.1
Sightseeing
5th-best month of the year
4.6
Beach & pool
12th-best month of the year

January is one of the better times to visit Heroica Matamoros for general sightseeing.

What to pack for Heroica Matamoros in January

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

In January, Heroica Matamoros sees daytime highs around 21°C and nights near 13°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Heroica Matamoros in January

The nearest coast averages about 19°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 38 km away) is warmest in September at about 29°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 18 to Jan 2 — about 9.6 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar20Cool
Apr22Refreshing
May25Warm
Jun28Warm
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct27Warm
Nov24Warm
Dec21Refreshing

UV index in Heroica Matamoros in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Heroica Matamoros 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 Heroica Matamoros in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Heroica Matamoros is worst in July — around 25 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (October, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1525 µg/m³Oct 247 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar11Good
Apr13Moderate
May19Moderate
Jun20Moderate
Jul25Moderate
Aug18Moderate
Sep13Moderate
Oct7Good
Nov7Good
Dec9Good
Location & terrain

Where is Heroica Matamoros?

Heroica Matamoros sits at 25.9°N, 97.5°W, 16 m above sea level, in Mexico. The nearest listed city is Brownsville, 3.0 km away.

Topography around Heroica Matamoros

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

Within 3 km, the terrain around Heroica Matamoros has only modest variations in elevation — a maximum elevation change of 13 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 28 m; within 80 km, only modest variations in elevation — a maximum elevation change of 81 m.

The land around Heroica Matamoros is covered by artificial surfaces (66%) and trees (20%) within 3 km, cropland (32%), grassland (21%) and artificial surfaces (20%) within 16 km, and cropland (38%) and water (34%) within 80 km.

3 km
13 m
16 km
28 m
80 km
81 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Brownsville 3.0 km · San Benito 31 km · Valle Hermoso 38 km · Harlingen 40 km · Mercedes 51 km · Weslaco 58 km · Ciudad Río Bravo 60 km · Donna 64 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 Heroica Matamoros (25.8797°, -97.5042°, elevation 16 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).