Cozumel weather in January

In January, Cozumel sees average daytime highs of 25°C and overnight lows near 24°C, with 64 mm of rain across 11.6 wet days and about 10.9 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 52% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 10 h 48 min at the start of January to 11 h 06 min by month's end. Set against the rest of the year, January is Cozumel's 6th-clearest and 2nd-windiest month. For the whole year in context, see Cozumel's year-round climate.

Daytime high
25°
12th warmest
Overnight low
24°
1st coldest
Rainfall
64 mm
11.6 wet days
Daylight
10 h 54 min
6:31 AM – 5:24 PM
Cloud cover
45%
6th clearest
Wind
22 km/h
2nd windiest
Solar energy
3.93 kWh/m²
Travel score
6.9
out of 10

Cozumel is municipal seat of Cozumel, State of Quintana Roo, 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 Cozumel reaches about 25°C in the afternoon and slips back to 24°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12624
22524
32524
42524
52524
62524
72524
82524
92524
102524
112524
122524
132524
142524
152523
162523
172523
182523
192523
202523
212524
222524
232524
242524
252524
262524
272524
282524
292524
302524
312524

How January really feels in Cozumel

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.

Cozumel 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
Jan25° / 24°6411.610.96.9
Feb26° / 24°286.811.37.6
Mar26° / 24°265.711.97.8
Apr27° / 25°295.812.57.6
May28° / 26°8511136.5
Jun28° / 27°16817.513.25.0
Jul29° / 27°8214.213.15.3
Aug29° / 27°10716.612.75.0
Sep29° / 27°18021.512.14.2
Oct28° / 26°21419.811.55.0
Nov27° / 25°10312.5116.4
Dec26° / 24°6611.910.86.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37228
47327
57327
67228
77129
87129
97129
107129
117129
127129
137030
147030
157030
167030
177030
187030
196931
206931
217030
226931
236931
247030
257030
267030
277228
287228
297426
307426
317624

Chance of precipitation in January

Any precipitation

Cozumel gets around 64 mm of rain over 11.6 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 37% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
338
438
539
639
740
840
940
1040
1140
1239
1339
1439
1538
1638
1738
1837
1936
2036
2135
2235
2334
2434
2534
2633
2733
2833
2932
3032
3131

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11101430431
21101530431
31101530431
41101529431
51101629431
61101629431
71101629431
81111729420
91111729410
101111829400
111111830400
121121830390
131121831380
141121831380
151121831370
161121831370
171131832370
180131832360
190131832360
200131832360
210131933360
220131933360
230131932360
240121932360
250121932370
260121832370
270111832380
280111832390
290111732390
300111732400
310111732400

Wind in January

Winds average 22 km/h in January.

Across January, daily wind ranges from about 22 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy
3122breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 48 min at the start of January to 11 h 06 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 6:28 AM to 6:29 AM, and sunset from 5:14 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:285:14
210.86:285:15
310.86:285:15
410.86:295:16
510.86:295:17
610.86:295:17
710.86:295:18
810.86:305:18
910.86:305:19
1010.86:305:20
1110.86:305:20
1210.86:305:21
1310.96:305:22
1410.96:305:22
1510.96:315:23
1610.96:315:24
1710.96:315:24
1810.96:315:25
1910.96:315:25
2010.96:315:26
2110.96:315:27
2210.96:315:27
2311.06:315:28
2411.06:305:29
2511.06:305:29
2611.06:305:30
2711.06:305:31
2811.06:305:31
2911.06:305:32
3011.06:295:32
3111.16:295:33

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.93 kWh/m².

For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.49 kWh/m² in July across the year — January's 3.93 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
194.0Moderate
204.0Moderate
214.0Bright
224.0Bright
234.1Bright
244.1Bright
254.1Bright
264.2Bright
274.2Bright
284.2Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in January

Hazard calendar for Cozumel

In seasonPeak

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

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

Cozumel's rainy season runs August–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 Cozumel?

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

6.9
Sightseeing
4th-best month of the year
6.3
Beach & pool
8th-best month of the year

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

What to pack for Cozumel in January

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

In January, Cozumel sees daytime highs around 25°C and nights near 24°C. Worth packing: light clothes, rain gear and a windbreaker. About 12 days see rain.

light clothesrain geara windbreaker

Sea temperature near Cozumel in January

The nearest coast averages about 27°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 16 km away) is warmest in September at about 29°C and coldest in February near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr27Warm
May28Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Cozumel 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 Cozumel peaks around April 18 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighApr 18UV 12Dec 16UV 7
UV index (midday)Level
Jan7Very high
Feb10Very high
Mar11Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7Very high
Dec6High

Air quality in Cozumel 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 Cozumel is worst in June — around 26 µg/m³ PM2.5 (moderate), about 4.3× the cleanest month (November, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2126 µg/m³Nov 226 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar8Good
Apr11Good
May15Moderate
Jun26Moderate
Jul24Moderate
Aug19Moderate
Sep13Moderate
Oct9Good
Nov6Good
Dec6Good
Location & terrain

Where is Cozumel?

Cozumel sits at 20.5°N, 86.9°W, 7 m above sea level, in Mexico. The nearest listed city is Playa del Carmen, 20 km away.

Topography around Cozumel

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

Within 3 km, the terrain around Cozumel has only modest variations in elevation — a maximum elevation change of 13 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 22 m; within 80 km, only modest variations in elevation — a maximum elevation change of 35 m.

The land around Cozumel is covered by trees (37%), artificial surfaces (30%) and water (22%) within 3 km, water (57%) and trees (38%) within 16 km, and water (53%) and trees (42%) within 80 km.

3 km
13 m
16 km
22 m
80 km
35 m
treesgrasslandartificial surfaceswatermangroves
January weather nearby: Playa del Carmen 20 km · Tulum 63 km · Cancun 76 km · Isla Mujeres 84 km · Valladolid 132 km · Tizimín 145 km · Felipe Carrillo Puerto 154 km · Chichen Itza 170 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 Cozumel (20.5004°, -86.9427°, elevation 7 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).