Chetumal weather in January

In January, Chetumal sees average daytime highs of 27°C and overnight lows near 21°C, with 52 mm of rain across 12.3 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 27°C through the month. The sky is clear or mostly clear about 46% of the time in January, and the air most often feels oppressive.

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 Chetumal's 4th-clearest and 7th-windiest month. For the whole year in context, see Chetumal's year-round climate.

Daytime high
27°
12th warmest
Overnight low
21°
1st coldest
Rainfall
52 mm
12.3 wet days
Daylight
11 hours
6:33 AM – 5:32 PM
Cloud cover
46%
4th clearest
Wind
13 km/h
7th windiest
Solar energy
3.97 kWh/m²
Travel score
6.4
out of 10

Chetumal is capital of the State of Quintana Roo, Mexico.

Founded
1898

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 27°C through the month.

A typical January day in Chetumal reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42721
52721
62721
72721
82721
92721
102721
112721
122721
132721
142721
152721
162721
172721
182721
192721
202721
212721
222721
232721
242721
252721
262721
272721
282721
292822
302822
312822

How January really feels in Chetumal

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.

Chetumal 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
Jan27° / 21°5212.3116.4
Feb28° / 22°247.111.46.6
Mar29° / 23°266.811.96.1
Apr31° / 25°327.412.45.3
May31° / 25°9315.412.94.1
Jun31° / 26°19321.713.13.3
Jul31° / 26°12021.3133.4
Aug31° / 26°15823.212.63.2
Sep31° / 25°18625.112.12.9
Oct30° / 24°19021.911.63.7
Nov28° / 23°9614.711.15.2
Dec28° / 22°5513.210.96.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 27% of January, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36832
46832
56931
67030
77129
87129
97228
107228
117327
127327
137327
147327
157327
167327
177327
187327
197327
207327
217327
227426
237426
247426
257426
267525
277624
287624
297723
307822
317822

Chance of precipitation in January

Any precipitation

Chetumal gets around 52 mm of rain over 12.3 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 39% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
243
343
443
543
643
742
842
942
1041
1141
1240
1340
1440
1540
1639
1739
1839
1939
2038
2138
2237
2337
2437
2536
2636
2735
2835
2935
3034
3134

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1161121565
2161121574
3161121574
4161121574
5161122564
6161122564
7171123544
8171223543
9171224533
10171224533
11171325513
12181325512
13181325512
14181325512
15181426502
16181426502
17181426501
18181526491
19171526491
20171626491
21171626501
22171626501
23161626501
24161626510
25161626510
26151526530
27151526530
28151525540
29151425541
30151425541
31151424551

Wind in January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

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 6:29 AM to 6:32 AM, and sunset from 5:24 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:295:24
210.96:305:24
310.96:305:25
410.96:305:25
510.96:305:26
610.96:315:26
710.96:315:27
810.96:315:28
910.96:315:28
1011.06:325:29
1111.06:325:29
1211.06:325:30
1311.06:325:31
1411.06:325:31
1511.06:325:32
1611.06:335:32
1711.06:335:33
1811.06:335:34
1911.06:335:34
2011.06:335:35
2111.06:335:36
2211.16:335:36
2311.16:335:37
2411.16:335:37
2511.16:335:38
2611.16:325:39
2711.16:325:39
2811.16:325:40
2911.16:325:40
3011.16:325:41
3111.26:325:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.97 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 6.23 kWh/m² in April across the year — January's 3.97 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
154.0Moderate
164.0Moderate
174.0Moderate
184.0Bright
194.0Bright
204.0Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in January

Hazard calendar for Chetumal

In seasonPeak

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

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

Chetumal's rainy season runs May–November, when most of the year's rain falls.

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

Is January a good time to visit Chetumal?

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

6.4
Sightseeing
2nd-best month of the year
6.6
Beach & pool
4th-best month of the year

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

What to pack for Chetumal in January

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

In January, Chetumal sees daytime highs around 27°C and nights near 21°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Chetumal in January

The nearest coast averages about 26°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 22 km away) is warmest in September at about 30°C and coldest in January near 26°C.

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

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov28Warm
Dec27Warm

UV index in Chetumal in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chetumal peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highApr 11UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Chetumal 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 Chetumal is worst in June — around 30 µg/m³ PM2.5 (moderate), about 4.5× the cleanest month (December, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2130 µg/m³Dec 157 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar11Good
Apr19Moderate
May24Moderate
Jun30Moderate
Jul29Moderate
Aug21Moderate
Sep15Moderate
Oct10Good
Nov7Good
Dec7Good
Location & terrain

Where is Chetumal?

Chetumal sits at 18.5°N, 88.3°W, 3 m above sea level, in Mexico. The nearest listed city is Bacalar, 20 km away.

Topography around Chetumal

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

Within 3 km, the terrain around Chetumal has only modest variations in elevation — a maximum elevation change of 19 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 32 m; within 80 km, only modest variations in elevation — a maximum elevation change of 223 m.

The land around Chetumal is covered by artificial surfaces (66%) and trees (20%) within 3 km, water (42%) and trees (40%) within 16 km, and trees (53%) and water (24%) within 80 km.

3 km
19 m
16 km
32 m
80 km
223 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
January weather nearby: Bacalar 20 km · Orange Walk 56 km · San Pedro 76 km · Crooked Tree 86 km · Caye Caulker 92 km · Belize City 114 km · Felipe Carrillo Puerto 121 km · Belmopan 149 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 Chetumal (18.5196°, -88.304°, elevation 3 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).