Comitán weather in December

In December, Comitán sees average daytime highs of 25°C and overnight lows near 14°C, with 10 mm of rain across 1.8 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 9th-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 70% of the time in December, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Comitán's 4th-clearest and 4th-windiest month. For the whole year in context, see Comitán's year-round climate.

Daytime high
25°
12th warmest
Overnight low
14°
2nd coldest
Rainfall
10 mm
1.8 wet days
Daylight
11 hours
6:34 AM – 5:36 PM
Cloud cover
30%
4th clearest
Wind
6 km/h
4th windiest
Solar energy
4.79 kWh/m²
Travel score
8.7
out of 10

Comitán is municipal seat of Comitán, State of Chiapas, Mexico.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical December day in Comitán reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°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, December runs on par with November and on par with January.

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
252514
262514
272514
282514
292514
302514
312514

Comitán weather by month

How December compares with the rest of the year at a glance. December 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
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°15416.812.75.0
Jun26° / 18°28822.712.94.5
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°101.811.18.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 16%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18218
28218
38317
48416
58416
68515
78515
88515
98515
108515
118515
128515
138515
148416
158416
168416
178416
188416
198416
208416
218416
228416
238416
248416
258416
268416
278416
288515
298515
308515
318515

Chance of precipitation in December

Any precipitation

Comitán gets around 10 mm of rain over 1.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 6% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
29
39
48
58
67
77
86
96
106
116
126
136
146
156
166
176
186
196
206
216
226
236
246
256
265
275
285
295
304
314

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. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1424612
2434611
3454510
446459
547449
648448
749438
851427
951427
1053416
1153416
1254406
1355405
1455405
1556395
1656395
1757385
1858384
1959374
2059374
2161363
2261363
2362353
2463352
2563352
2664342
2766331
2866331
2967321
3068311
3169301

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 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
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:25 AM to 6:40 AM, and sunset from 5:31 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:255:31
211.16:265:32
311.16:265:32
411.16:275:32
511.16:285:32
611.16:285:32
711.16:295:33
811.16:295:33
911.16:305:33
1011.16:305:34
1111.16:315:34
1211.06:315:34
1311.06:325:35
1411.06:335:35
1511.06:335:35
1611.06:345:36
1711.06:345:36
1811.06:355:37
1911.06:355:37
2011.06:365:38
2111.06:365:38
2211.06:375:38
2311.06:375:39
2411.06:375:39
2511.06:385:40
2611.06:385:40
2711.06:395:41
2811.06:395:41
2911.06:405:42
3011.06:405:43
3111.06:405:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.79 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 — December's 4.79 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for Comitán

In seasonPeak

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

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

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

Is December a good time to visit Comitán?

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

8.7
Sightseeing
2nd-best month of the year
7.8
Beach & pool
5th-best month of the year

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

What to pack for Comitán in December

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

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

light clothessun protection

UV index in Comitán in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Comitán peaks around April 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 12UV 14Dec 16UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar14Extreme
Apr15Extreme
May11Extreme
Jun14Extreme
Jul13Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Comitán 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 Comitán 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 Comitán?

Comitán sits at 16.2°N, 92.1°W, 1,655 m above sea level, in Mexico. The nearest listed city is Las Margaritas, 18 km away.

Topography around Comitán

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

Within 3 km, the terrain around Comitán has significant variations in elevation — a maximum elevation change of 333 m around an average of 1,643 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,658 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,997 m.

The land around Comitán is covered by artificial surfaces (58%) within 3 km, trees (51%) and grassland (30%) within 16 km, and trees (66%) and grassland (22%) within 80 km.

3 km
333 m
16 km
1,658 m
80 km
2,997 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Las Margaritas 18 km · Las Rosas 29 km · Venustiano Carranza 47 km · Teopisca 49 km · Comalapa 64 km · Ocosingo 74 km · San Cristóbal de las Casas 76 km · Jacaltenango 78 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 Comitán (16.24°, -92.1367°, elevation 1,655 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).