Las Rosas weather in January

In January, Las Rosas sees average daytime highs of 25°C and overnight lows near 14°C, with 7 mm of rain across 1.2 wet days and about 11.1 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 75% of the time in January, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Las Rosas's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Las Rosas's year-round climate.

Daytime high
25°
9th warmest
Overnight low
14°
1st coldest
Rainfall
7 mm
1.2 wet days
Daylight
11 h 06 min
6:45 AM – 5:52 PM
Cloud cover
28%
2nd clearest
Wind
6 km/h
3rd windiest
Solar energy
5 kWh/m²
Travel score
8.9
out of 10

Las Rosas is municipal seat of Las Rosas, State of Chiapas, 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 25°C through the month.

A typical January day in Las Rosas reaches about 25°C in the afternoon and slips back to 14°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12514
22514
32514
42514
52514
62514
72514
82514
92514
102514
112514
122514
132514
142514
152514
162514
172514
182514
192514
202514
212514
222514
232514
242514
252614
262614
272614
282614
292614
302614
312614

Las Rosas weather by month

How January compares with the rest of the year at a glance. January is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°71.211.18.9
Feb27° / 14°30.511.58.7
Mar29° / 15°9211.97.5
Apr29° / 17°356.112.46.0
May28° / 18°15416.812.85.0
Jun26° / 18°28822.7134.5
Jul27° / 17°12813.812.95.7
Aug27° / 17°22217.412.55.2
Sep26° / 17°35523.812.14.3
Oct25° / 17°2181811.65.5
Nov25° / 15°426.411.27.7
Dec25° / 14°101.8118.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 11%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48713
58713
68812
78812
88812
98911
109010
119010
129010
139010
149010
159010
169010
178911
188911
198911
208911
218911
228911
238812
248812
258812
268812
278812
288812
298911
309010
319010

Chance of precipitation in January

Any precipitation

Las Rosas gets around 7 mm of rain over 1.2 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 4% and peaks near 4% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
64
74
84
94
104
114
123
133
143
153
163
173
184
194
204
214
224
234
244
254
264
274
284
294
304
314

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
170291
272280
373270
473270
574260
675250
775250
876240
977230
1078220
1179210
1280200
1380200
1481190
1582180
1682180
1782180
1883170
1983170
2084160
2184160
2285150
2385150
2485150
2585150
2685150
2785150
2885150
2985150
3085150
3185150

Wind in January

Winds average 6 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 7 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
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours at the start of January to 11 h 18 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 6:41 AM to 6:45 AM, and sunset from 5:44 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:415:44
211.06:425:44
311.06:425:45
411.16:425:46
511.16:435:46
611.16:435:47
711.16:435:47
811.16:445:48
911.16:445:48
1011.16:445:49
1111.16:445:50
1211.16:445:50
1311.16:455:51
1411.16:455:51
1511.16:455:52
1611.16:455:52
1711.16:455:53
1811.16:455:54
1911.16:455:54
2011.26:455:55
2111.26:455:55
2211.26:455:56
2311.26:455:56
2411.26:455:57
2511.26:455:58
2611.26:455:58
2711.26:455:59
2811.26:455:59
2911.26:456:00
3011.36:456:00
3111.36:456:01

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.81 kWh/m² in April across the year — January's 5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Las Rosas

In seasonPeak

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

Las Rosas's monsoon runs August–October, when most of the year's rain falls.

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

Is January a good time to visit Las Rosas?

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

8.9
Sightseeing
1st-best month of the year
8.0
Beach & pool
3rd-best month of the year

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

What to pack for Las Rosas in January

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

In January, Las Rosas sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Las Rosas in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Las Rosas peaks around April 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 14Dec 15UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May11Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Las Rosas 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 Las Rosas is worst in April — around 57 µg/m³ PM2.5 (unhealthy), about 6.1× the cleanest month (December, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodApr 1955 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb16Moderate
Mar33Moderate
Apr57Unhealthy
May45Poor
Jun19Moderate
Jul20Moderate
Aug17Moderate
Sep16Moderate
Oct13Moderate
Nov11Good
Dec9Good
Location & terrain

Where is Las Rosas?

Las Rosas sits at 16.4°N, 92.4°W, 1,312 m above sea level, in Mexico. The nearest listed city is Venustiano Carranza, 21 km away.

Topography around Las Rosas

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

Within 3 km, the terrain around Las Rosas has large variations in elevation — a maximum elevation change of 775 m around an average of 1,397 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,897 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,499 m.

The land around Las Rosas is covered by trees (33%) and grassland (32%) within 3 km, trees (45%) and grassland (30%) within 16 km, and trees (60%) and grassland (26%) within 80 km.

3 km
775 m
16 km
1,897 m
80 km
2,499 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Venustiano Carranza 21 km · Teopisca 22 km · Comitán 29 km · Las Margaritas 42 km · San Cristóbal de las Casas 50 km · Ocosingo 67 km · Chiapas 78 km · Comalapa 82 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 Las Rosas (16.3655°, -92.3706°, elevation 1,312 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).