Cosamaloapan weather in January

In January, Cosamaloapan sees average daytime highs of 26°C and overnight lows near 19°C, with 47 mm of rain across 8.9 wet days and about 11 hours of daylight. It is the 12th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 32% of the time in January, and the air most often feels muggy.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Cosamaloapan's 5th-clearest and 3rd-windiest month. For the whole year in context, see Cosamaloapan's year-round climate.

Daytime high
26°
12th warmest
Overnight low
19°
1st coldest
Rainfall
47 mm
8.9 wet days
Daylight
11 hours
7:02 AM – 6:03 PM
Cloud cover
59%
5th clearest
Wind
9 km/h
3rd windiest
Solar energy
3.48 kWh/m²
Travel score
6.8
out of 10

Cosamaloapan is municipal seat of Cosamaloapan, State of Veracruz, Mexico.

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 26°C through the month.

A typical January day in Cosamaloapan reaches about 26°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12619
22619
32619
42619
52619
62619
72619
82619
92619
102619
112619
122619
132619
142619
152619
162619
172619
182619
192619
202619
212619
222619
232619
242619
252619
262619
272719
282719
292719
302719
312719

How January really feels in Cosamaloapan

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.

Cosamaloapan weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 19°478.9116.8
Feb28° / 19°32611.46.5
Mar31° / 21°254.711.95.1
Apr34° / 24°325.212.43.5
May35° / 25°7410.812.92.6
Jun33° / 25°24222.513.12.3
Jul32° / 24°27625.3132.5
Aug32° / 24°28425.512.62.5
Sep32° / 24°32524.812.12.6
Oct30° / 23°20918.811.63.8
Nov28° / 21°9413.111.15.5
Dec27° / 19°499.310.96.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54654
64753
74654
84654
94753
104654
114654
124753
134753
144852
154852
164852
174753
184753
194753
204852
214852
224753
234852
244852
254852
264852
274852
284753
294852
304852
314852

Chance of precipitation in January

Any precipitation

Cosamaloapan gets around 47 mm of rain over 8.9 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 28% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
330
430
529
629
729
828
928
1028
1127
1227
1327
1427
1527
1627
1727
1827
1928
2028
2128
2228
2328
2428
2528
2628
2728
2828
2928
3028
3128

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 57% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1310264218
2311264218
3311264218
4311264217
5312264217
6312264217
7312274116
8313274116
9313284015
10313294015
11313294015
12313294014
13313304014
14313304014
15313304014
16213304114
17213304113
18213304213
19213304213
20213304213
21212294313
22212294413
23212294413
24211284513
25211284513
26211284513
27211284614
28211284514
29210284514
30210294415
31210294415

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 min at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 6:59 AM to 7:01 AM, and sunset from 5:54 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:595:54
210.96:595:54
310.97:005:55
410.97:005:56
510.97:005:56
610.97:005:57
710.97:015:57
810.97:015:58
911.07:015:58
1011.07:015:59
1111.07:026:00
1211.07:026:00
1311.07:026:01
1411.07:026:02
1511.07:026:02
1611.07:026:03
1711.07:026:03
1811.07:026:04
1911.07:026:05
2011.07:026:05
2111.17:026:06
2211.17:026:06
2311.17:026:07
2411.17:026:08
2511.17:026:08
2611.17:026:09
2711.17:026:09
2811.17:026:10
2911.17:026:10
3011.27:026:11
3111.27:016:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.48 kWh/m².

For context, solar energy here swings from a low near 3.4 kWh/m² to a high of 6.4 kWh/m² in May across the year — January's 3.48 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.4Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.8Moderate
Planning a trip in January

Hazard calendar for Cosamaloapan

In seasonPeak

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

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

Cosamaloapan's monsoon runs June–October, when most of the year's rain falls.

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

Is January a good time to visit Cosamaloapan?

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

6.8
Sightseeing
1st-best month of the year
6.6
Beach & pool
4th-best month of the year

January is a reasonable time to visit Cosamaloapan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cosamaloapan in January

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

In January, Cosamaloapan sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Cosamaloapan in January

The nearest coast averages about 23°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 57 km away) is warmest in August at about 29°C and coldest in February near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar24Warm
Apr26Warm
May27Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov27Warm
Dec25Warm

UV index in Cosamaloapan in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cosamaloapan peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highAug 16UV 13Dec 19UV 7
UV index (midday)Level
Jan7Very high
Feb10Extreme
Mar11Extreme
Apr13Extreme
May9Very high
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Cosamaloapan 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 Cosamaloapan is worst in May — around 49 µg/m³ PM2.5 (poor), about 3.7× the cleanest month (January, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMay 1647 µg/m³Jan 1513 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar20Moderate
Apr31Moderate
May49Poor
Jun28Moderate
Jul31Moderate
Aug24Moderate
Sep21Moderate
Oct15Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Cosamaloapan?

Cosamaloapan sits at 18.4°N, 95.8°W, 12 m above sea level, in Mexico. The nearest listed city is Carlos A. Carrillo, 5.0 km away.

Topography around Cosamaloapan

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

Within 3 km, the terrain around Cosamaloapan has only modest variations in elevation — a maximum elevation change of 14 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 24 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,630 m.

The land around Cosamaloapan is covered by cropland (38%) and grassland (23%) within 3 km, cropland (38%) and grassland (28%) within 16 km, and grassland (36%) and trees (28%) within 80 km.

3 km
14 m
16 km
24 m
80 km
1,630 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
January weather nearby: Carlos A. Carrillo 5.0 km · Loma Bonita 30 km · Tlacotalpan 31 km · Tres Valles 38 km · Lerdo de Tejada 41 km · Alvarado 45 km · La Isla 45 km · Tuxtepec 46 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 Cosamaloapan (18.3676°, -95.7986°, elevation 12 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).