Cancun Weather in July

🇲🇽 Mexico

30°C

High

26°C

Low

Rain Days

12h

Sunshine

78%

Humidity

North America › 🇲🇽 Mexico › Cancun

Updated: March 2026

Is July a Good Time to Visit Cancun?

4/10

Fair

July is a fair time to visit Cancun (4/10). With 12 daily sunshine hours and only 18 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 2nd sunniest of the year in Cancun. July suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 18 potential rain days. June offers a similar profile at lower hotel rates if dates are flexible. Watch out for prolonged rain stretches: with 18 wet days, a fully outdoor itinerary is risky. Build in museum days and covered market visits as contingency. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.

vs June:29°C avg high

Cancun's July climate peaks at 30°C each afternoon before cooling to 26°C overnight. 12 daily sunshine hours and just 18 wet days mean the odds of a fine day are solidly in your favour. It is a reasonable time to visit, with a backup plan for the occasional shower.

30°C

Avg High

26°C

Avg Low

18 days

Rain Days

12h

Sunshine

78%

Humidity

Temperature in Cancun in July

The narrow 4°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. At 78% humidity, the 30°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. UV index averages 9 this month, classed as high to very high. SPF 30+ sunscreen, a brim hat, and sunglasses are not optional between 10am and 4pm. Wind averages 16 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 86°F average high, 79°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).

Temperature in July

Monthly Precipitation (mm)

What to Wear in Cancun in July

Morning26°CBefore the day warms up

Afternoon30°CPeak daytime temperature

Evening29°CAfter sunset cools down

Packing for Cancun in July means dressing for 30°C days and 26°C evenings. A lightweight linen or cotton shirt with loose-fit trousers or a sundress handles the 30°C daytime heat. Evening temperatures settle at 26°C, a modest 4°C drop that a light cardigan or denim jacket covers. For footwear, breathable walking sandals work for casual exploration, but closed-toe trainers are better for uneven surfaces in the historic centre. With 18 rain days expected, a compact travel umbrella is worth the bag space. A waterproof jacket is better than an umbrella if you plan full-day outdoor routes. At 78% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.

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Local tip: Cancun sees heavy rain periods where a compact travel umbrella can feel inadequate. A packable waterproof jacket offers better coverage for prolonged downpours and leaves both hands free for maps and cameras.

Events in Cancun in July

July has no major festivals or public holidays in Cancun, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.

What to Pack for Cancun in July

Based on 30°C average highs and 18 rainy days

Light layers for morning and evening
Breathable T-shirts and comfortable trousers
UV-protective sunglasses
Quick-dry travel towel
Anti-chafe balm for long walking days
Moisture-wicking synthetic fabrics for active days
Compact folding umbrella
Waterproof outer layer or packable rain jacket
Quick-dry clothing that recovers fast after a shower
SPF 30+ sunscreen
Comfortable walking shoes (a second pair lets the first air out overnight)
Universal travel adapter
Small day pack for city exploration
Reusable water bottle

Best Activities in Cancun in July

Early morning walk through Cancun's historic market districtBest before 9amTemperatures are still manageable at 26°C before the midday heat builds
Open-air rooftop dining at sunsetFrom 6pm onwardsThe 30°C daytime heat drops noticeably after sunset, making al fresco dining comfortable
Waterfront promenade or harbour walkEarly morning or after 5pmSea breezes cut through the humidity, making coastal routes the most pleasant in heat
Guided cycling tour of the old quarterFirst tour of the day (7-9am)The low-traffic window before tourist crowds and the cooler morning air make this the prime riding slot
Spend a morning in the national or city art museumOpens at 10am; arrive earlyWith 18 rain days expected, having a full-day indoor plan is practical insurance
Cooking class focused on regional cuisineHalf-day sessions run 10am-1pm or 3-6pmIndoor activity that fills a rainy half-day with genuine cultural content
Visit covered historical sites: cathedral, palace, or bazaarAny time; most crowded middayRoofed monuments and covered markets provide exploration without weather exposure
Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningJuly brings distinct seasonal changes to public green spaces worth exploring
Seek out chilled local specialities: cold-brew tea, ice desserts, or chilled seafood at street-level stallsAny time; most atmospheric in evening marketsHot-weather street food culture peaks in July, with vendors setting up specifically for warm evenings

Why is Cancun warm in July?

Cancun's July climate is governed by the Inter-Tropical Convergence Zone (ITCZ), which draws moisture-laden trade winds across the region, producing the characteristic wet season rainfall of steamy tropical cities. Daytime heat peaks around 30°C, moderated slightly by afternoon convective showers. Overnight temperatures remain warm at 26°C because the humid air retains heat effectively. Climate data: Open-Meteo ERA5 (1991–2020).

Sunshine Hours

The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.

UV Index

A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate -- wear sunscreen. UV 6-7: High -- hat and SPF 30+ essential. UV 8-10: Very High -- limit midday exposure. UV 11+: Extreme -- seek shade between 10am-4pm.

Rain Days

A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.

Humidity

Relative humidity as a percentage. Below 40%: Dry -- skin and throat may feel parched. 40-60%: Comfortable -- ideal for most people. 60-80%: Sticky -- light, breathable fabrics recommended. Above 80%: Muggy -- heat feels more intense; quick-dry clothing is essential.

Frequently Asked Questions: Cancun in July

In July, Cancun experiences average highs of 30°C (86°F) and lows of 26°C (79°F). Expect around 18 rainy days and 12 hours of sunshine per day, with humidity averaging 78%. The 4°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an overshirt or cardigan handles the cooler evenings. UV index averages 9, so sun protection is advisable on clear days.

Cancun typically sees 18 rainy days in July, with total precipitation of around 112mm. This is a notably wet period. A waterproof jacket or compact umbrella is essential, and it is worth building indoor alternatives into your daily itinerary for the inevitable rainy stretches. For context, the driest month in Cancun typically sees 4-6 fewer rain days than July.

Pack lightweight, breathable clothing (linen or cotton), a wide-brim sun hat, SPF 50+ sunscreen, and a refillable water bottle for Cancun in July. The 30°C daytime heat demands sun protection during midday hours, typically 11am to 4pm. A compact travel umbrella is also worth packing, as 18 rainy days means afternoon showers are a real possibility. Quick-dry synthetic fabrics are preferable to cotton in 78% humidity.

July is a reasonable time to visit Cancun. Expect 18 rainy days, so pack a light rain layer for flexibility. Average temperatures of 30°C make outdoor exploration comfortable during the dry periods. With 12 daily sunshine hours, there are reliable windows of good weather to plan outdoor activities around, even if the month is not the driest on the calendar.

The average high temperature in Cancun in July is 30°C (86°F), and the average low is 26°C (79°F). The mean daily temperature is approximately 28°C (82°F). The day-to-night range of 4°C is narrow, typical of coastal or maritime cities. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.

The best month to visit Cancun is generally March. March offers the most sunshine at 11 hours per day and only 7 rainy days. Average temperatures reach 27°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around March gives you the best chance of dry, bright weather.

July is shoulder or low season in Cancun, meaning fewer tourists and generally lower prices than peak months. With 12 sunshine hours and 18 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.

In July, Cancun suits a range of activities thanks to warm temperatures of 30°C. With frequent rain, indoor activities and covered attractions are a smart choice. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 12 hours of sunshine, parks and waterfront walks are particularly enjoyable.

July ranks 2nd sunniest of the year in Cancun, with an average 12 daily sunshine hours. The driest months are March, April, and February. July is the hottest month (30°C avg high); January is the coolest (25°C). From here, temperatures fall 0°C into August. Compared to last month (June: 29°C high, 19 rain days), July is warmer and drier. July is among the top three sunniest months to visit Cancun.

Year-Round Climate

Month	High	Low	Rain Days	Sun	Details
January	25°C	22°C	11	9h	View
February	26°C	23°C	8	10h	View
March	27°C	23°C	7	11h	View
April	28°C	24°C	7	11h	View
May	29°C	25°C	14	12h	View
June	29°C	26°C	19	11h	View
July	30°C	26°C	18	12h	View
August	30°C	26°C	21	11h	View
September	29°C	26°C	24	10h	View
October	28°C	25°C	21	10h	View
November	27°C	24°C	12	9h	View
December	26°C	23°C	11	9h	View

Other Months in Cancun

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Plan Your Trip to Cancun

Best Time to Visit Cancun Cancun vs Playa del Carmen in July

Data Sources for Cancun

Cancun on Wikipedia Open-Meteo Climate API NOAA National Centers UK Met Office WMO GeoNames

Climate normals represent 30-year averages (1991-2020). Individual years may vary.