Chetumal weather in July

In July, Chetumal sees average daytime highs of 31°C and overnight lows near 26°C, with 120 mm of rain across 21.3 wet days and about 13 hours of daylight. It is the 3rd-warmest and 5th-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 32% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 06 min at the start of July to 12 h 54 min by month's end. Set against the rest of the year, July is Chetumal's 9th-clearest and 6th-windiest month. For the whole year in context, see Chetumal's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
26°
11th coldest
Rainfall
120 mm
21.3 wet days
Daylight
13 hours
5:28 AM – 6:29 PM
Cloud cover
59%
9th clearest
Wind
13 km/h
6th windiest
Solar energy
5.98 kWh/m²
Travel score
3.4
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 July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical July day in Chetumal reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193126
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126
313126

How July really feels in Chetumal

Once humidity and wind are folded in, July 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Chetumal weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 5th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 17% of July, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34159
44159
54159
64159
74258
84357
94357
104456
114357
124555
134555
144654
154753
164852
174951
185050
195149
205347
215446
225446
235644
245644
255743
265842
275842
285842
295842
305743
315743

Chance of precipitation in July

Any precipitation

Chetumal gets around 120 mm of rain over 21.3 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 69% and peaks near 72% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
169
269
369
469
569
668
768
868
968
1068
1168
1268
1367
1467
1567
1667
1767
1868
1968
2068
2169
2269
2369
2469
2570
2670
2770
2871
2971
3071
3172

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11090
21090
31189
41189
51288
61288
71288
81387
91387
101387
111387
121387
131387
141387
151387
161288
171288
181189
191189
201090
211090
221090
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in July

Winds average 13 km/h in July.

Across July, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light 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 July

DaylightNight

Daylight runs from about 13 h 06 min at the start of July to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over July. Sunrise moves from 5:24 AM to 5:34 AM, and sunset from 6:30 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:246:30
213.15:246:30
313.15:246:30
413.15:246:30
513.15:256:30
613.15:256:30
713.15:256:30
813.15:266:30
913.15:266:30
1013.15:266:30
1113.15:276:30
1213.05:276:30
1313.05:276:30
1413.05:286:29
1513.05:286:29
1613.05:286:29
1713.05:296:29
1813.05:296:29
1913.05:296:29
2013.05:306:29
2113.05:306:28
2213.05:316:28
2312.95:316:28
2412.95:316:27
2512.95:326:27
2612.95:326:27
2712.95:326:27
2812.95:336:26
2912.95:336:26
3012.95:336:25
3112.95:346:25

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.98 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 — July's 5.98 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in July

Hazard calendar for Chetumal

In seasonPeak

In July, 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 July a good time to visit Chetumal?

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

3.4
Sightseeing
9th-best month of the year
5.0
Beach & pool
8th-best month of the year

July is a weaker month for outdoor sightseeing in Chetumal.

What to pack for Chetumal in July

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

In July, Chetumal sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Chetumal in July

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

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (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 July

GoodModeratePoorUnhealthyVery unhealthy

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