Climate averages 1991–2020
Cancún weather
in July.
A hot, moderately wet month: the 2nd warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Cancún: daytime highs average 29.7°C and nights cool to about 26.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 65 mm of rain on roughly 11 days, which makes July a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 17 min on an average July day.
The nearest other city in this atlas is Playa del Carmen (65 km away). In July its highs average 30.0°C, about as warm as Cancún, with 80 mm of rain.
Among the 153 cities listed in Mexico, Cancún ranks joint 64th of 153 for the warmest July highs and joint 35th of 153 for the driest July (rainfall, lowest first). The mean July high of those 153 cities is 28.0°C; Cancún is 1.7°C warmer than that mean.
From July to August, average highs rise by 0.1°C to 29.8°C, and monthly rainfall rises from 65 mm to 87 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cancún climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.3°C22.3°C | 22.3°C | 67 | 10.7 | 11.011 h |
| February | 26.0°C22.7°C | 22.7°C | 33 | 6.7 | 11.411 h |
| March | 26.8°C23.3°C | 23.3°C | 25 | 5.0 | 12.012 h |
| April | 28.2°C24.4°C | 24.4°C | 26 | 4.7 | 12.613 h |
| May | 29.0°C25.4°C | 25.4°C | 75 | 9.6 | 13.113 h |
| June | 29.1°C26.0°C | 26.0°C | 133 | 15.3 | 13.413 h |
| July, selected | 29.7°C26.4°C | 26.4°C | 65 | 11.3 | 13.313 h |
| August | 29.8°C26.4°C | 26.4°C | 87 | 14.3 | 12.913 h |
| September | 29.2°C25.9°C | 25.9°C | 162 | 20.2 | 12.312 h |
| October | 28.0°C25.1°C | 25.1°C | 190 | 19.1 | 11.712 h |
| November | 26.7°C24.0°C | 24.0°C | 90 | 11.7 | 11.111 h |
| December | 25.9°C23.1°C | 23.1°C | 61 | 11.4 | 10.911 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Playa del Carmen in JulyMexico · 65 kmHigh 30.0°C · Low 26.1°C · 80 mm rain
- Cozumel in JulyMexico · 76 kmHigh 28.9°C · Low 27.0°C · 82 mm rain
- Kanasín in JulyMexico · 283 kmHigh 34.6°C · Low 24.2°C · 85 mm rain
- Mérida in JulyMexico · 289 kmHigh 34.2°C · Low 24.3°C · 85 mm rain
- Chetumal in JulyMexico · 332 kmHigh 30.8°C · Low 24.9°C · 120 mm rain
- Pinar del Río in JulyCuba · 353 kmHigh 31.9°C · Low 24.2°C · 126 mm rain
- Campeche in JulyMexico · 410 kmHigh 33.6°C · Low 25.2°C · 101 mm rain
- Belmopan in JulyBelize · 480 kmHigh 30.1°C · Low 23.6°C · 126 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cancún) is explained once on the Cancún year overview and on the Sources, method and limits page.