Chetumal weather in October

In October, Chetumal sees average daytime highs of 30°C and overnight lows near 24°C, with 190 mm of rain across 21.9 wet days and about 11.6 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 26% 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 Chetumal's 10th-clearest and 11th-windiest month. For the whole year in context, see Chetumal's year-round climate.

Daytime high
30°
7th warmest
Overnight low
24°
6th coldest
Rainfall
190 mm
21.9 wet days
Daylight
11 h 36 min
5:51 AM – 5:25 PM
Cloud cover
65%
10th clearest
Wind
11 km/h
11th windiest
Solar energy
4.46 kWh/m²
Travel score
3.7
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical October day in Chetumal reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, October runs about 1°C cooler than September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
252924
262924
272924
282924
292924
302924
312924

How October really feels in Chetumal

Once humidity and wind are folded in, October averages 31 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
31
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.

Chetumal weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 2nd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33466
43466
53565
63565
73664
83664
93664
103763
113862
123961
133961
144159
154159
164258
174357
184555
194555
204654
214753
224852
234852
245050
255050
265149
275248
285248
295347
305347
315446

Chance of precipitation in October

Any precipitation

Chetumal gets around 190 mm of rain over 21.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 71% and peaks near 85% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
185
285
384
483
582
681
780
879
978
1077
1176
1275
1374
1473
1572
1671
1770
1869
1968
2066
2165
2265
2364
2463
2563
2662
2762
2861
2961
3060
3159

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 64% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1011386
2011485
3021583
4021682
5021781
6021880
7021979
8032077
9032176
10032374
11032473
12042571
13042670
14142768
15152965
16153064
17153163
18163360
19173458
20173557
21183655
22293752
232103751
242103850
252113849
262123947
272133946
282134045
292144043
302154142
313154141

Wind in October

Winds average 11 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012light breeze
3112light breeze

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 5:47 AM to 5:57 AM, and sunset from 5:37 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:475:37
211.85:475:36
311.85:485:36
411.85:485:35
511.85:485:34
611.75:485:33
711.75:495:32
811.75:495:31
911.75:495:31
1011.75:495:30
1111.75:505:29
1211.65:505:28
1311.65:505:28
1411.65:505:27
1511.65:515:26
1611.65:515:25
1711.65:515:25
1811.55:525:24
1911.55:525:23
2011.55:525:23
2111.55:535:22
2211.55:535:21
2311.55:545:21
2411.45:545:20
2511.45:545:20
2611.45:555:19
2711.45:555:19
2811.45:565:18
2911.45:565:18
3011.35:565:17
3111.35:575:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.46 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 — October's 4.46 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in October

Hazard calendar for Chetumal

In seasonPeak

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

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 October a good time to visit Chetumal?

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

3.7
Sightseeing
8th-best month of the year
5.0
Beach & pool
9th-best month of the year

October is a weaker month for outdoor sightseeing in Chetumal.

What to pack for Chetumal in October

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

In October, Chetumal sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 22 days see rain.

light clothesrain gear

Sea temperature near Chetumal 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 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 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 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 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 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
October 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).