Cozumel weather in October

In October, Cozumel sees average daytime highs of 28°C and overnight lows near 26°C, with 214 mm of rain across 19.8 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 39% of the time in October, and the air most often feels miserable.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 18 min by month's end. Set against the rest of the year, October is Cozumel's 10th-clearest and 9th-windiest month. For the whole year in context, see Cozumel's year-round climate.

Daytime high
28°
5th warmest
Overnight low
26°
7th coldest
Rainfall
214 mm
19.8 wet days
Daylight
11 h 30 min
5:47 AM – 5:18 PM
Cloud cover
57%
10th clearest
Wind
19 km/h
9th windiest
Solar energy
4.63 kWh/m²
Travel score
5.0
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical October day in Cozumel reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272726
282726
292726
302726
312726

How October really feels in Cozumel

Once humidity and wind are folded in, October averages 10 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
10
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cozumel weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 1st-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34654
44753
54753
64852
74951
85050
95050
105149
115248
125347
135347
145446
155545
165545
175644
185644
195644
205644
215743
225743
235743
245842
255842
265842
275941
286040
296040
306139
316238

Chance of precipitation in October

Any precipitation

Cozumel gets around 214 mm of rain over 19.8 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 64% and peaks near 77% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
177
276
375
475
574
673
772
871
970
1069
1168
1267
1367
1466
1565
1664
1764
1863
1962
2061
2160
2259
2358
2457
2556
2655
2755
2854
2953
3052
3151

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the miserable band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10022969
20032968
30033067
40033166
50033265
60033463
70043561
80043660
90043759
100143857
110144055
120144154
130154252
140154351
150254548
160264647
170264645
180274743
190384742
200394840
210394839
2204104838
2304114837
2414124836
2514134835
2615134833
2715144832
2815154831
2916164929
3016174927
3117174926

Wind in October

Winds average 19 km/h in October.

Across October, daily wind ranges from about 18 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2020light breeze
2120light breeze
2220light breeze
2320breezy
2420breezy
2520breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over October. Sunrise moves from 5:42 AM to 5:54 AM, and sunset from 5:31 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:425:31
211.85:435:30
311.85:435:29
411.85:435:28
511.75:435:28
611.75:445:27
711.75:445:26
811.75:445:25
911.75:455:24
1011.65:455:23
1111.65:455:22
1211.65:465:22
1311.65:465:21
1411.65:465:20
1511.55:475:19
1611.55:475:18
1711.55:485:18
1811.55:485:17
1911.55:485:16
2011.45:495:16
2111.45:495:15
2211.45:505:14
2311.45:505:14
2411.45:505:13
2511.45:515:12
2611.35:515:12
2711.35:525:11
2811.35:525:10
2911.35:535:10
3011.35:535:09
3111.35:545:09

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.63 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 — October's 4.63 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in October

Hazard calendar for Cozumel

In seasonPeak

In October, Cozumel sits inside its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.

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 October a good time to visit Cozumel?

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

5.0
Sightseeing
9th-best month of the year
5.4
Beach & pool
11th-best month of the year

October is a reasonable time to visit Cozumel for sightseeing.

What to pack for Cozumel in October

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

In October, Cozumel sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Cozumel in October

The nearest coast averages about 29°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).