Avg High
Cancún in July
Avg Low
Rain
Daylight
13h
What to expect
Cancún is in mid-summer during July, with the season well established by this point. Afternoons often feel hot in direct sun, with a fairly even feel across the day. Conditions tend to feel steady, which makes planning simple. Daylight stays generous for longer outdoor plans.
July in context
How it compares to the rest of the year in Cancún.
Hottest (avg)
#2 / 12
Wettest (avg)
#5 / 12
Daylight Hours
#2 / 12
Windiest (avg)
#10 / 12
Highest UV
#4 / 12
Most Humid
#5 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 13.3 h
- UV index (max)
- 9
- Typical sun hours
- 06:14 - 19:31
Rain & Snow
- Total rain
-
- Rainy days
- 22 days
- Cloud cover (avg)
- 51%
Humidity & Wind
- Humidity (avg)
- 80%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for July. Typical high 30.0°C and low 26.5°C.
Typical disruptions in July
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in July.
Humidity High impact
Muggy days Measures: Muggy days (dew point >=20C). Observed about 100% of days (31.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
31.0 days / month
~100% of days
Why this matters
- Expected days 31.0 days / month
- Probability ~100% of days
- Intensity Up to ~25°C (P95)
Muggy conditions are possible on ~31 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat High impact
Hot feels-like days Measures: Hot feels-like days (>=32C). Observed about 98% of days (30.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
30.5 days / month
~98% of days
Why this matters
- Expected days 30.5 days / month
- Probability ~98% of days
- Intensity Up to ~38°C (P95)
Feels-like heat >=32C is possible on ~30 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Very hot feels-like Measures: Very hot feels-like days (>=35C). Observed about 73% of days (22.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
22.7 days / month
~73% of days
Why this matters
- Expected days 22.7 days / month
- Probability ~73% of days
- Intensity Up to ~38°C (P95)
Very hot feels-like conditions are possible on ~23 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat High impact
Heat stress risk Measures: High heat stress days. Observed about 73% of days (22.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
22.7 days / month
~73% of days
Why this matters
- Expected days 22.7 days / month
- Probability ~73% of days
- Intensity Up to ~38°C (P95)
Heat stress is possible on ~23 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Humidity High impact
Oppressive humidity Measures: Oppressive humidity days (dew point >=24C). Observed about 61% of days (19.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
19.0 days / month
~61% of days
Why this matters
- Expected days 19.0 days / month
- Probability ~61% of days
- Intensity Up to ~25°C (P95)
Oppressive humidity is possible on ~19 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Heat High impact
Hot days Measures: Hot days (>=30C). Observed about 52% of days (16.1 days/month) in July. Historical risk signal only, not a day-by-day forecast.
16.1 days / month
~52% of days
Why this matters
- Expected days 16.1 days / month
- Probability ~52% of days
- Intensity Up to ~32°C (P95)
Hot days are possible on ~16 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Show all disruptions (20 more)
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 23% of days (7.1 days/month) in July. Historical risk signal only, not a day-by-day forecast.
7.1 days / month
~23% of days
Why this matters
- Expected days 7.1 days / month
- Probability ~23% of days
- Intensity Up to ~25mm (P95)
Rain disruption risk appears on ~7 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 20% of days (6.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
6.3 days / month
~20% of days
Why this matters
- Expected days 6.3 days / month
- Probability ~20% of days
- Intensity Up to ~27mm (P95)
Washout conditions are possible on ~6 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 10% of days (3.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
3.0 days / month
~10% of days
Why this matters
- Expected days 3.0 days / month
- Probability ~10% of days
- Intensity Up to ~40mm (P95)
Heavy rain is possible on ~3 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 1.7 days/month in July. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
Probability unavailable
Why this matters
- Expected days 1.7 days / month
- Probability —
- Intensity Up to ~24mm (P95)
Multi-day washout runs are possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 1% of days (0.4 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.4 days / month
~1% of days
Why this matters
- Expected days 0.4 days / month
- Probability ~1% of days
- Intensity Up to ~98km/h (P95)
Stormy conditions are possible on ~0 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Rain High impact
Very heavy rain Measures: Very heavy rain days (>=25mm). Observed about 1% of days (0.4 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.4 days / month
~1% of days
Why this matters
- Expected days 0.4 days / month
- Probability ~1% of days
- Intensity Up to ~77mm (P95)
Very heavy rain is possible on ~0 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Heat Moderate
Heatwave run Measures: Heatwave runs (>=3 hot days). Observed about 1.5 days/month in July. Historical risk signal only, not a day-by-day forecast.
1.5 days / month
Probability unavailable
Why this matters
- Expected days 1.5 days / month
- Probability —
- Intensity Up to ~31°C (P95)
Heatwave runs are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Moderate
Feels-like heatwave Measures: Feels-like heatwave runs (>=3 days). Observed about 1.3 days/month in July. Historical risk signal only, not a day-by-day forecast.
1.3 days / month
Probability unavailable
Why this matters
- Expected days 1.3 days / month
- Probability —
- Intensity Up to ~38°C (P95)
Feels-like heatwave runs are possible on ~1 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Heat Minor
Warm nights Measures: Warm nights (min >=22C). Observed about 100% of days (31.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
31.0 days / month
~100% of days
Why this matters
- Expected days 31.0 days / month
- Probability ~100% of days
- Intensity Up to ~28°C (P95)
Warm nights are possible on ~31 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Humid days Measures: Humid days (dew point >=18C). Observed about 100% of days (31.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
31.0 days / month
~100% of days
Why this matters
- Expected days 31.0 days / month
- Probability ~100% of days
- Intensity Up to ~25°C (P95)
Humid conditions are possible on ~31 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Heat Minor
Hot nights Measures: Hot nights (min >=25C). Observed about 90% of days (27.9 days/month) in July. Historical risk signal only, not a day-by-day forecast.
27.9 days / month
~90% of days
Why this matters
- Expected days 27.9 days / month
- Probability ~90% of days
- Intensity Up to ~28°C (P95)
Hot nights are possible on ~28 days. Midday activity often needs adjustment around shade, hydration, and indoor fallback options.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 84% of days (26.1 days/month) in July. Historical risk signal only, not a day-by-day forecast.
26.1 days / month
~84% of days
Why this matters
- Expected days 26.1 days / month
- Probability ~84% of days
- Intensity Up to ~15mm (P95)
Measurable rain is possible on ~26 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 63% of days (19.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
19.6 days / month
~63% of days
Why this matters
- Expected days 19.6 days / month
- Probability ~63% of days
- Intensity Up to ~15h (P95)
Several rainy hours are possible on ~20 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 60% of days (18.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
18.5 days / month
~60% of days
Why this matters
- Expected days 18.5 days / month
- Probability ~60% of days
- Intensity Up to ~87% (P95)
High humidity is possible on ~19 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 39% of days (12.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
12.0 days / month
~39% of days
Why this matters
- Expected days 12.0 days / month
- Probability ~39% of days
- Intensity Up to ~17h (P95)
Wet-most-of-day conditions are possible on ~12 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 38% of days (11.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
11.8 days / month
~38% of days
Why this matters
- Expected days 11.8 days / month
- Probability ~38% of days
- Intensity Up to ~98% (P95)
Cloudy skies are possible on ~12 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
Convective risk Measures: Convective storm risk proxy. Observed about 23% of days (7.1 days/month) in July. Historical risk signal only, not a day-by-day forecast.
7.1 days / month
~23% of days
Why this matters
- Expected days 7.1 days / month
- Probability ~23% of days
- Intensity Up to ~25°C (P95)
Convective risk signal appears on ~7 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 17% of days (5.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
5.3 days / month
~17% of days
Why this matters
- Expected days 5.3 days / month
- Probability ~17% of days
- Intensity Up to ~100% (P95)
Mostly cloudy skies are possible on ~5 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 15% of days (4.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
4.5 days / month
~15% of days
Why this matters
- Expected days 4.5 days / month
- Probability ~15% of days
- Intensity Up to ~55km/h (P95)
Gusty conditions are possible on ~5 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 6% of days (1.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
~6% of days
Why this matters
- Expected days 1.7 days / month
- Probability ~6% of days
- Intensity Up to ~100% (P95)
Overcast skies are possible on ~2 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Frequently asked questions
Is July a good time to visit Cancún?
Typical July days in Cancún reach highs of 30°C (86°F) with nights around 26°C (79°F). It usually feels hot by day and warm after dark. Overall, July sits in the middle of the Cancún climate range.
What are temperatures like in July?
Daytime temperatures in July typically peak near 30°C (86°F), while nights drop to around 26°C (79°F). Expect hot afternoons and warm evenings.
How much does it rain in July?
Rainfall in July averages 112 mm (4.4 in) across roughly 22 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in July?
You can expect about 13 hours of daylight in July. Sunrise is typically around 06:14 and sunset near 19:31. You get long days with comfortable amounts of daylight.
How strong is the sun in July?
UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is it windy in July?
In July, average wind speeds are around 12 km/h (7 mph), with gusts on the windiest days reaching about 41 km/h (25 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.