Cancún Weather in July
In Cancún, July brings very high daytime temperatures around 31°C (88°F), with nights cooling to 27°C (81°F). Expect quite a bit of rainfall this month.
Rainfall in Cancún in July
You can expect rain on around 12 days based on historical patterns, with 90 mm (3.5 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Cancún in July
Cancún in July gets highs of 31°C (88°F) during the day and drops to 27°C (81°F) at night. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 27°C (81°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.
Sunshine in Cancún in July
Enjoy a sunny month with about 233 hours of sunshine, the clear skies make Cancún even more beautiful.
Average water temperature in July
The water is 29°C (84°F) — very warm by most standards. Comfortable to swim in, but not particularly refreshing if you're looking to cool off.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, November and December typically offer the best circumstances for Cancún.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cancún's climate page.
Cancún Temperature in July
Min Temperature
27°C (81°F)
Max Temperature
31°C (88°F)
Water Temperature
29°C (84°F)
Chance of Rain
38%
Precipitation
90 mm (3.5 in)
Rainy days
12 days
Sunshine
233 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cancún typically stay consistent throughout July, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in July
Historical weather for Cancún in July
Browse day-by-day weather records for Cancún spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cancún historical weather extremes in July
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Cancún.
- On July 4, 2019, temperatures climbed to 39°C (102°F), marking the warmest July day on record.
- The lowest daytime temperature in July was 27°C (81°F), recorded on July 6, 2010.
- The coldest night in July in Cancún was on July 22, 1979, with a minimum of 18°C (64°F).
Best Places in Mexico in July
Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in July →
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What to Wear in Cancún in July
Warm but pleasant conditions in Cancún in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Cancún in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Mexico, check out our Cancún's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Cancún climate overview or explore weather in Mexico.
