Weather in Cancun 🇲🇽
Monthly weather averages & travel planning
July
Avg Temp
30°C
Rain Days
18 days
Sun Hours
12 hrs
Humidity
78%
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 3rd 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
86°F
Avg High
26°C
79°F
Avg Low
18 days
112 mm total
Rain Days
12h
per day avg
Sunshine
78%
Humid
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 Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ 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.
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 April. April offers the most sunshine at 12 hours per day and only 7 rainy days. Average temperatures reach 28°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around April 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 3rd 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 | 12h | 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 | 10h | View |
| December | 26°C | 23°C | 11 | 10h | View |
January
11 rain days, 9h sun
25°22°
February
8 rain days, 10h sun
26°23°
March
7 rain days, 11h sun
27°23°
April
7 rain days, 12h sun
28°24°
May
14 rain days, 12h sun
29°25°
June
19 rain days, 11h sun
29°26°
July
18 rain days, 12h sun
30°26°
August
21 rain days, 11h sun
30°26°
September
24 rain days, 10h sun
29°26°
October
21 rain days, 10h sun
28°25°
November
12 rain days, 10h sun
27°24°
December
11 rain days, 10h sun
26°23°
Other Months in Cancun
Plan Your Trip to Cancun
Data Sources for Cancun
Climate normals represent 30-year averages (1991-2020). Individual years may vary.