Cancun weather in July

In July, Cancun sees average daytime highs of 28°C and overnight lows near 27°C, with 65 mm of rain across 11.1 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 8th-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 47% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 18 min at the start of July to 13 hours by month's end. Set against the rest of the year, July is Cancun's 7th-clearest and 10th-windiest month. For the whole year in context, see Cancun's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
27°
12th coldest
Rainfall
65 mm
11.1 wet days
Daylight
13 h 12 min
5:18 AM – 6:28 PM
Cloud cover
47%
7th clearest
Wind
18 km/h
10th windiest
Solar energy
6.58 kWh/m²
Travel score
5.8
out of 10

Cancun is municipal seat of Juárez, State of Quintana Roo, Mexico.

Founded
1970

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 28°C through the month.

A typical July day in Cancun reaches about 28°C in the afternoon and slips back to 27°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, July runs on par with June and on par with August.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12827
22827
32827
42827
52827
62827
72827
82827
92827
102827
112827
122827
132827
142827
152827
162827
172827
182827
192827
202827
212827
222827
232827
242827
252827
262827
272927
282927
292927
302927
312927

How July really feels in Cancun

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.

Cancun weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°6710.710.97.0
Feb25° / 24°336.611.37.7
Mar26° / 24°25511.98.0
Apr26° / 25°264.912.57.8
May27° / 26°759.5136.8
Jun28° / 27°13315.413.35.5
Jul28° / 27°6511.113.25.8
Aug29° / 27°8814.612.75.3
Sep28° / 27°16220.312.14.4
Oct28° / 26°19019.211.55.2
Nov27° / 25°9011.8116.5
Dec26° / 24°6111.410.76.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% 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 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35545
45644
55842
65941
75941
86040
96238
106337
116337
126535
136634
146634
156832
166832
176832
186832
196832
206931
216931
226931
236931
246931
256832
266832
276733
286733
296535
306535
316436

Chance of precipitation in July

Any precipitation

Cancun gets around 65 mm of rain over 11.1 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 37% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
239
338
438
537
637
736
836
936
1036
1136
1236
1336
1436
1536
1636
1736
1836
1936
2037
2137
2237
2337
2438
2538
2638
2739
2839
2940
3040
3141

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 (%)
11189
21189
31288
41288
51288
61288
71387
81387
91387
101486
111486
121486
131387
141387
151387
161288
171288
181189
191189
201090
21991
22991
23892
24892
25892
26793
27793
28793
29793
30793
31892

Wind in July

Winds average 18 km/h in July.

Across July, daily wind ranges from about 17 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 18 min at the start of July to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:13 AM to 5:24 AM, and sunset from 6:29 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:136:29
213.35:136:29
313.35:136:29
413.35:136:29
513.35:146:29
613.35:146:29
713.25:146:29
813.25:156:29
913.25:156:29
1013.25:166:29
1113.25:166:29
1213.25:166:29
1313.25:176:29
1413.25:176:29
1513.25:176:28
1613.25:186:28
1713.25:186:28
1813.25:196:28
1913.15:196:28
2013.15:196:27
2113.15:206:27
2213.15:206:27
2313.15:216:26
2413.15:216:26
2513.15:216:26
2613.15:226:25
2713.05:226:25
2813.05:236:25
2913.05:236:24
3013.05:236:24
3113.05:246:23

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.58 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.69 kWh/m² to a high of 6.58 kWh/m² in July across the year — July's 6.58 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in July

Hazard calendar for Cancun

In seasonPeak

In July, Cancun sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

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

Cancun's rainy season runs June–June, 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 Cancun?

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

5.8
Sightseeing
8th-best month of the year
6.8
Beach & pool
5th-best month of the year

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

What to pack for Cancun in July

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

In July, Cancun sees daytime highs around 28°C and nights near 27°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Cancun 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 24 km away) is warmest in September at about 29°C and coldest in February near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar26Warm
Apr27Warm
May28Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Cancun 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 Cancun peaks around July 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 19UV 12Dec 16UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar11Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in Cancun 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 Cancun is worst in June — around 25 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (November, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 2024 µg/m³Nov 226 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar8Good
Apr12Good
May15Moderate
Jun25Moderate
Jul22Moderate
Aug18Moderate
Sep12Moderate
Oct9Good
Nov6Good
Dec6Good
Location & terrain

Where is Cancun?

Cancun sits at 21.2°N, 86.8°W, 11 m above sea level, in Mexico. The nearest listed city is Isla Mujeres, 14 km away.

Chichen ItzaFelipe Carrillo Puerto

Topography around Cancun

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

Within 3 km, the terrain around Cancun has only modest variations in elevation — a maximum elevation change of 16 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 30 m; within 80 km, only modest variations in elevation — a maximum elevation change of 31 m.

The land around Cancun is covered by artificial surfaces (87%) within 3 km, water (37%) and trees (32%) within 16 km, and water (53%) and trees (39%) within 80 km.

3 km
16 m
16 km
30 m
80 km
31 m
treesgrasslandartificial surfacesbare terrainwaterwetlandmangroves
July weather nearby: Isla Mujeres 14 km · Playa del Carmen 65 km · Cozumel 76 km · Tulum 125 km · Tizimín 135 km · Valladolid 151 km · Chichen Itza 187 km · Felipe Carrillo Puerto 217 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 Cancun (21.1743°, -86.8466°, elevation 11 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).