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Climate & Weather in Cancún

Sunshine hrs/yr
2500-2700 hours

Updated July 2026 · Sources cited: climatestotravel.com, currentresults.com

Good to Know

  • Cancun remains beautifully warm year-round—the main choice is between peak-season prices (Dec-April) and hurricane-season discounts (June-Oct), not between good and bad weather.
  • Hurricane season rain typically arrives as brief afternoon showers (10-20 minutes) followed by sun, not all-day downpours. Morning activities are reliably sunny even during peak rainy months.
  • January-February and November offer the best combination: warm weather, minimal sargassum seaweed, and significantly lower prices than December peak.
  • April-May provides excellent value—weather still warm and dry, sargassum just beginning to build, and prices drop sharply after Spring Break crowds depart.
  • September-October offer the deepest price discounts (40-60% off peak season) if you book travel insurance with hurricane coverage and remain flexible on dates.
  • Sargassum seaweed peaks June-August on Caribbean-facing beaches; November-March is seaweed-free. All-inclusive resorts manage it daily; independent hotels may be affected.
  • Pack a light sweater or long-sleeve shirt for evenings December-February, especially during northerly wind events (el Norte) that can bring cooler nights to the low 50s-60s°F.
  • UV index remains moderate-high year-round (6-7), so sunscreen and sun protection are essential every season.

Dry Season

Months
November to April
Characteristics
Clear skies, abundant sunshine, comfortable humidity levels. December-March feature the coolest conditions but remain warm and beach-friendly. December-March also sees occasional northern wind (el Norte) bringing slightly cooler nights.
Rainfall Monthly
40 mm average
Description
Peak season for tourism. Warm and pleasant with significantly reduced rainfall.

Temperature

Daytime High Celsius
27
Nighttime Low Celsius
22
Daytime High Fahrenheit
81
Nighttime Low Fahrenheit
72

Wet Season

Months
May to October
Characteristics
Hot and humid. Rainfall typically occurs as brief afternoon thunderstorms or showers rather than all-day rain. Morning sun is common even during rainy season.
Rainfall Monthly
150-200+ mm in peak rainy months
Description
Hot, humid, with significant rainfall and increased hurricane risk.

Temperature

Daytime High Celsius
30
Nighttime Low Celsius
26
Daytime High Fahrenheit
86
Nighttime Low Fahrenheit
79

Humidity

Annual Average
80%

Lowest Months

  • April
  • May

Highest Months

  • August
  • September
Climate Type
tropical semi-tropical
Year Round Warmth
Cancun maintains warm temperatures throughout the year with only minor seasonal variation.

Snowfall

Status
No snow
Reason
Tropical climate with temperatures never cold enough for snowfall, even in coolest winter months.

Sunshine

Annual Hours
2500-2700 hours
Dry Season Daily Hours
8-10 hours per day
Wet Season Daily Hours
6-8 hours per day

Sunniest Months

  • March
  • April

Cloudiest Months

  • September
  • October

Sea Temperature

Coolest Month
February
Warmest Month
August
Coolest Month Celsius
25.9
Warmest Month Celsius
29.2
Annual Average Celsius
27.6
Coolest Month Fahrenheit
78.6
Warmest Month Fahrenheit
84.6
Annual Average Fahrenheit
81.7
Note
Water remains warm year-round for swimming; optimal for water activities July-October.

Hurricane Season

Characteristics
Direct hurricane hits on Cancun are rare (approximately one every 3-5 years). Since 2005, no hurricane has made direct landfall. Most storms either move north into the Gulf or south toward Belize and Honduras. Even within peak season, brief showers (10-20 minutes) remain common with sunny intervals.
Official Season
June 1 to November 30
Peak Risk Window
Mid-August to mid-October, with statistical peak around September 10

Months Of Highest Risk

  • August
  • September
  • October

Rainfall Patterns

Driest Month
April
Wettest Month
September
Annual Total Mm
1212
Rainy Days Annual
224
Annual Total Inches
48
Driest Month Rainfall Mm
32
Wettest Month Rainfall Mm
189
Driest Month Rainfall Inches
1.3
Wettest Month Rainfall Inches
7.4
Note
Rainfall concentrated in wet season (May-October), with June-September receiving heaviest precipitation (150-270mm monthly). December-April receives minimal rainfall.

Temperature Extremes

Coolest Month
January
Hottest Month
August
Record Extremes Celsius
Can reach 35°C (95°F) in summer; occasional winter lows near 13°C (55°F) during northerly wind events
Coolest Month High Celsius
27
Hottest Month High Celsius
31
Record Extremes Fahrenheit
Can reach 35°C (95°F) in summer; occasional winter lows near 13°C (55°F) during northerly wind events
Coolest Month High Fahrenheit
81
Hottest Month High Fahrenheit
88

Best Months For Visit

Ideal Weather
Mid-March to late May and January to February
Reason
Warm, relatively dry, frequent sunshine, lower humidity (April-May), minimal rain

Worst Months For Visit

Least Ideal
September
Reason
Peak hurricane season risk, heaviest rainfall (averaging 9-10 inches), highest humidity, greatest sargassum seaweed presence
AI-generated estimateData refreshed July 2026

These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.

  1. 1.climatestotravel.com
  2. 2.currentresults.com
  3. 3.weather-atlas.com
  4. 4.holiday-weather.com
  5. 5.weather-and-climate.com
  6. 6.weatherspark.com
  7. 7.govisitcancun.com
  8. 8.en.climate-data.org
  9. 9.worldweatheronline.com
  10. 10.cancun-adventure.com
  11. 11.howisthesargassum.com
  12. 12.going.com
  13. 13.shopback.com
  14. 14.islandlifemexico.com
  15. 15.avantrentacar.com
  16. 16.clubmed.us
  17. 17.howisthesargassum.com

Data last updated July 2026 · Verify anything important.