Cancún, Mexico experiences average highs of 28°C (82°F) and lows of 25°C (77°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Sunshine is abundant, averaging about 11 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Cancún, Mexico Weather & Climate 2026
Monthly climate averages for Cancún, Mexico. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Jun–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.9/10
Best: January, February, March, November, December
UV Index
7
High
Temperature 28°C / 25°C
Feels Like 32°C / 28°C
Rainy Days 14
Rainfall 94 mm
Sunshine 11 h
Humidity 77%
Wind Speed 18 km/h
Dew Point 22°C
Hottest Month
30°C
July
Avg Low27°C
Rain16days
Coldest Month
23°C
January
Avg High26°C
Rain11days
Driest Month
5days
April
Avg High29°C
Avg Low25°C
Windiest Month
21 km/h
March (Gusts 41)
Sea Temperature
27°C – 30°C
Warmest water: September (
29.6°C
)
Worst Time to Visit
Consider avoiding June, July, August, September due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:07
Daylight 13.4h
Sunset 19:32
Live conditions—
Cancún on the map · live conditions
Cancún, Mexico
- Continent
- Americas
- Country
- Mexico
- City
- Cancún
- Population
- 888.8K
- Coordinates
- 21.17°, -86.85°
Seasonal Breakdown
Spring
Mar–May
Avg High 29°C
Avg Low 25°C
Rain 8 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 30°C
Avg Low 27°C
Rain 18 days/mo
Autumn
Sep–Nov
Avg High 29°C
Avg Low 26°C
Rain 19 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 26°C
Avg Low 23°C
Rain 10 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 26°C / 23°C . Feb: 27°C / 24°C . Mar: 28°C / 24°C . Apr: 29°C / 25°C . May: 30°C / 26°C . Jun: 30°C / 26°C . Jul: 30°C / 27°C . Aug: 30°C / 27°C . Sep: 30°C / 27°C . Oct: 29°C / 26°C . Nov: 27°C / 25°C . Dec: 27°C / 24°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 53 mm. Feb: 30 mm. Mar: 22 mm. Apr: 32 mm. May: 84 mm. Jun: 182 mm. Jul: 87 mm. Aug: 149 mm. Sep: 174 mm. Oct: 167 mm. Nov: 89 mm. Dec: 63 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 73%. Mar: 72%. Apr: 74%. May: 77%. Jun: 81%. Jul: 79%. Aug: 80%. Sep: 82%. Oct: 80%. Nov: 77%. Dec: 75%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 20 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 20 km/h . Jun: 19 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 15 km/h . Oct: 17 km/h . Nov: 17 km/h . Dec: 18 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 10h. Mar: 11h. Apr: 12h. May: 12h. Jun: 11h. Jul: 12h. Aug: 11h. Sep: 11h. Oct: 10h. Nov: 10h. Dec: 9h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 27°C . Feb: 27°C . Mar: 27°C . Apr: 27°C . May: 28°C . Jun: 29°C . Jul: 29°C . Aug: 29°C . Sep: 30°C . Oct: 29°C . Nov: 29°C . Dec: 27°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 8. Apr: UV 9. May: UV 9. Jun: UV 8. Jul: UV 9. Aug: UV 9. Sep: UV 8. Oct: UV 7. Nov: UV 6. Dec: UV 5.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 31°C | Jul · 30°C |
| Coldest month | Jan 2025 · 23°C | Jan · 23°C |
| Wettest month | Oct 2025 · 207 mm | Jun · 182 mm |
| Windiest month | Apr 2025 · 22 km/h | Mar · 21 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April
Good May
Fair June
Wet July
Poor August
Wet September
Wet October
Wet November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 26°C / 23°C | 28°C / 24°C | 11days (53 mm) Wet | 9.1h Good | 74% Muggy | 5.6 High | Excellent | View Details |
| February best | 27°C / 24°C | 29°C / 25°C | 7days (30 mm) Good | 9.8h Good | 73% Muggy | 6.7 High | Excellent | View Details |
| March best | 28°C / 24°C | 30°C / 26°C | 6days (22 mm) Good | 10.9h Excellent | 72% Muggy | 8 Very High | Excellent | View Details |
| April | 29°C / 25°C | 32°C / 27°C | 5days (32 mm) Good | 11.5h Excellent | 74% Muggy | 8.7 Very High | Good | View Details |
| May | 30°C / 26°C | 34°C / 29°C | 12days (84 mm) Wet | 11.8h Excellent | 77% Humid | 9 Very High | Fair | View Details |
| June | 30°C / 26°C | 35°C / 30°C | 18days (182 mm) Wet | 10.7h Excellent | 81% Humid | 8.3 Very High | Wet | View Details |
| July | 30°C / 27°C | 36°C / 32°C | 16days (87 mm) Wet | 11.8h Excellent | 79% Humid | 8.7 Very High | Poor | View Details |
| August | 30°C / 27°C | 37°C / 32°C | 20days (149 mm) Wet | 11.2h Excellent | 80% Humid | 8.5 Very High | Wet | View Details |
| September | 30°C / 27°C | 36°C / 31°C | 23days (174 mm) Wet | 10.5h Excellent | 82% Humid | 7.9 Very High | Wet | View Details |
| October | 29°C / 26°C | 33°C / 29°C | 21days (167 mm) Wet | 9.8h Good | 80% Humid | 7.1 Very High | Wet | View Details |
| November best | 27°C / 25°C | 30°C / 27°C | 13days (89 mm) Wet | 9.7h Good | 77% Humid | 5.9 High | Excellent | View Details |
| December best | 27°C / 24°C | 29°C / 25°C | 11days (63 mm) Wet | 9.3h Good | 75% Muggy | 5.3 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Cancún are January, February, March, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Cancún, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Cancún is July, with average daytime highs of 30°C (87°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Cancún is January, with average overnight lows of 23°C (73°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Cancún is June, averaging 182mm of precipitation across 18 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Cancún runs through September, October, August, June, with the heaviest rainfall in September. Based on 10-year averages for Cancún.
Cancún receives approximately 126 sunshine hours per year. The sunniest month is May with around 12 hours. Based on climate data for Cancún.
The least favorable months to visit Cancún are June, July, August, September, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, March, November, December instead.
The annual average UV index in Cancún is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Cancún is 77%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in January, February, March, April, May, June, July, August, September, October, November, December average 28°C (82°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Cancún are 18 km/h (11 mph). The windiest month is March with peak winds reaching 21 km/h (13 mph) (gusts up to 41 km/h / 25 mph).
Cancún averages 4 clear-sky days per month with overall cloud cover around 48%. The clearest skies occur in April.
The annual average dew point in Cancún is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Cancún has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Cancún ranges from 28°C (82°F) to 32°C (90°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Cancún, with a climate score of 2.7/10. Consider visiting during January, February, March, November, December instead for better conditions.
For June in Cancún, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 30°C (85°F) and 18 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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