Bacalar weather in October

In October, Bacalar sees average daytime highs of 31°C and overnight lows near 23°C, with 152 mm of rain across 20.6 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 22% 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 Bacalar's 10th-clearest and 11th-windiest month. For the whole year in context, see Bacalar's year-round climate.

Daytime high
31°
8th warmest
Overnight low
23°
7th coldest
Rainfall
152 mm
20.6 wet days
Daylight
11 h 36 min
5:52 AM – 5:26 PM
Cloud cover
66%
10th clearest
Wind
8 km/h
11th windiest
Solar energy
4.4 kWh/m²
Travel score
3.5
out of 10

Bacalar is city of Quintana Roo State, Mexico.

Founded
1545

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 31°C through the month.

A typical October day in Bacalar reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, October runs about 1°C cooler than September and about 2°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13224
23124
33124
43124
53124
63124
73124
83124
93124
103124
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243023
253023
263023
273023
283022
293022
303022
313022

How October really feels in Bacalar

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.

Bacalar weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°379.8116.1
Feb30° / 20°195.711.45.8
Mar31° / 21°235.311.95.2
Apr33° / 23°356.612.44.2
May33° / 24°8514.312.93.2
Jun32° / 25°17521.413.12.9
Jul32° / 25°10620.1133.0
Aug33° / 24°14522.412.62.7
Sep32° / 24°16524.912.12.5
Oct31° / 23°15220.611.63.5
Nov29° / 21°7212.911.15.0
Dec29° / 20°3910.410.95.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 20% of October, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33268
43367
53466
63565
73565
83565
93664
103763
113862
123862
133961
143961
154159
164159
174258
184357
194456
204555
214555
224753
234852
244951
254951
265050
275050
285149
295149
305347
315347

Chance of precipitation in October

Any precipitation

Bacalar gets around 152 mm of rain over 20.6 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 67% and peaks near 82% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
182
281
380
479
578
677
776
875
974
1073
1172
1272
1371
1470
1569
1668
1766
1865
1964
2062
2161
2260
2359
2458
2558
2657
2756
2855
2954
3053
3152

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021979
2031978
3032077
4032176
5042274
6042373
7042472
8052669
9052768
10152866
11152965
12163063
13163162
14163360
15263458
16273556
17273655
18383851
19383950
20393948
214104046
224114144
235114143
245124241
255134240
265134338
276144337
286154336
296164434
306164433
316174432

Wind in October

Winds average 8 km/h in October.

Across October, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
279calm
289calm
299calm
309calm
319calm

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 5:48 AM to 5:57 AM, and sunset from 5:38 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:485:38
211.85:485:37
311.85:485:36
411.85:485:35
511.85:495:34
611.75:495:33
711.75:495:32
811.75:495:32
911.75:505:31
1011.75:505:30
1111.75:505:29
1211.65:505:29
1311.65:515:28
1411.65:515:27
1511.65:515:26
1611.65:525:26
1711.65:525:25
1811.55:525:24
1911.55:535:24
2011.55:535:23
2111.55:535:22
2211.55:545:22
2311.55:545:21
2411.45:545:20
2511.45:555:20
2611.45:555:19
2711.45:565:19
2811.45:565:18
2911.45:575:18
3011.35:575:17
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 4.4 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.1 kWh/m² in April across the year — October's 4.4 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in October

Hazard calendar for Bacalar

In seasonPeak

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

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

Bacalar's rainy season runs May–October, 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 Bacalar?

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

3.5
Sightseeing
7th-best month of the year
5.0
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Bacalar.

What to pack for Bacalar in October

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

In October, Bacalar sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. About 21 days see rain.

light clothesrain gear

Sea temperature near Bacalar 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 29 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 Bacalar 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 Bacalar peaks around April 12 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 12UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb11Extreme
Mar12Extreme
Apr13Extreme
May11Extreme
Jun13Extreme
Jul12Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Bacalar 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 Bacalar 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 Bacalar?

Bacalar sits at 18.7°N, 88.4°W, 0 m above sea level, in Mexico. The nearest listed city is Chetumal, 20 km away.

Topography around Bacalar

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

Within 3 km, the terrain around Bacalar has only modest variations in elevation — a maximum elevation change of 27 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 64 m; within 80 km, only modest variations in elevation — a maximum elevation change of 229 m.

The land around Bacalar is covered by trees (41%) and water (33%) within 3 km, trees (72%) within 16 km, and trees (64%) within 80 km.

3 km
27 m
16 km
64 m
80 km
229 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
October weather nearby: Chetumal 20 km · Orange Walk 69 km · San Pedro 96 km · Crooked Tree 102 km · Felipe Carrillo Puerto 106 km · Caye Caulker 112 km · Belize City 133 km · Belmopan 163 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 Bacalar (18.6811°, -88.3933°, elevation 0 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).