🏆 Weather Seasons and Best Time to Visit
Cancun enjoys tropical weather year-round, but the calendar splits into two distinct seasons: the dry season, from November to April, and the rainy season, roughly June to October, with May as a transition month. Temperature changes relatively little between them; what really changes is how often it rains, the humidity, sea conditions and the risk of tropical storms. The best time to travel is December to April, the peak season, when the weather is most stable.
☀️ Dry Season
November - April
Sunny days with temperatures of 24-31°C (75-88°F), little rain and calm seas. December to April is also peak season.
- ✓ Ideal beach weather
- ✓ Calm seas, perfect for snorkeling
- ✗ Higher prices
- ✗ More tourists
🌧️ Rainy Season
June - October
Short afternoon showers, sunny mornings. Temperatures of 27-33°C (81-91°F) and high humidity. Overlaps with hurricane season.
- ✓ Prices up to 40% lower
- ✓ Fewer tourists
- ✗ Afternoon rain showers
- ✗ Possible sargassum (summer)
Dry season: November to April
During these months the air is drier and nights feel cool by Caribbean standards. December, January and February are the mildest months, with highs of 28-29°C (82-84°F) and lows around 24°C (75°F). The prevailing wind blows from the east and cools the coast, and every now and then a cold front, known locally as a "norte", brings one or two cloudy days with wind and choppier seas, especially on beaches facing the open sea. Once the front passes, the sky clears again. March and April warm up gradually, to 30-31°C (86-88°F), with long, very sunny days and almost no rain.
Rainy season: June to October
Summer brings humid heat and showers. The typical pattern is a clear morning, clouds building after midday and an intense but brief downpour of 30 to 60 minutes in the afternoon. June, July and August are the hottest months, with highs of 32-33°C (90-91°F) and a higher heat index because of the humidity. September and October are the rainiest months and carry the highest risk of tropical storms: in those weeks rain can last longer and, if a system passes nearby, take up the whole day.
Transition months: May and November
May is the hottest month before the rains: the sun is intense, humidity rises and the first showers appear, although dry days still dominate. November works the other way around: hurricane season officially ends on November 30, showers become less frequent and temperatures drop to a pleasant 25-29°C (77-84°F). That is why both months are a good alternative if you want good weather outside peak season. If you need to pick dates based on prices, crowds, sargassum or type of trip, see our guide to the best time to visit Cancun.
Best value: Visit in May or November. You'll enjoy good weather at low-season prices.
📊 Month-by-Month Weather
Each month has its own characteristics. Months in green are ideal, yellow are good, and blue mark the rainy season.
The year month by month
January and February are the coolest months, with 24-29°C (75-84°F), mostly clear skies and water at 26-27°C (79-81°F). Early in the morning and at night a light layer is welcome, especially when a norte is blowing.
March and April bring more heat (25-31°C / 77-88°F), almost no rain and a sea that is usually calm and very clear. They are also high-demand weeks because of spring break in Cancun and Easter week (Semana Santa) in Cancun.
May is the transition month: hot (27-32°C / 81-90°F), still mostly dry and with the first showers of the season.
June, July and August combine humid heat of 27-33°C (81-91°F), frequent afternoon showers and the warmest water of the year, around 28-29°C (82-84°F). This is also the period with the most sargassum: according to our Cancun sargassum report, May to October is peak sargassum season, with the worst months in July and August.
September and October are the rainiest months and the peak of hurricane season. Temperatures drop slightly (26-32°C / 79-90°F), but humidity stays high.
November and December mark the return of drier air: showers become less frequent and temperatures drop to 24-29°C (75-84°F). December is already peak season, and the Christmas and New Year's holidays in Cancun are among the busiest weeks of the year.
🌊 Water Temperature, Sun and Humidity
The Caribbean Sea off Cancun never gets cold: it hovers around 26-27°C (79-81°F) in winter and 28-29°C (82-84°F) in summer, so you can swim in any month without a wetsuit. The difference between seasons shows more in sea conditions than in water temperature: in the dry season calm, clear water is the norm, except on norte days, while in summer storms can stir up the sea and cloud it for a while.
What you do need to take seriously all year is the sun. Because of the tropical latitude, radiation is intense even on cloudy days, and humidity makes it feel hotter than the thermometer says, especially from May to October. Seek shade in the middle of the day, drink water often and use biodegradable sunscreen. To match your suitcase to the season you are traveling in, see our guide on what to pack for Cancun.
🌀 Hurricane Season
Atlantic hurricane season runs from June 1 to November 30, with the highest risk in September and October. However, hurricanes that directly hit Cancun are relatively rare.
Traveling in those months does not mean running into a hurricane: most days are simply hot, with the odd afternoon shower. What is more likely is that a distant tropical storm brings one or several cloudy days with rain and rough seas. That is why it pays to keep some flexibility in your itinerary and not leave boat trips for your last day. Our guide to hurricane season in Cancun explains in more detail what to do before and during your trip.
What to do if you travel during hurricane season?
- Purchase travel insurance that covers weather-related cancellations
- Monitor the forecast in the days before your trip
- Hotels are prepared with safety protocols
- Airlines usually allow free changes when there is an official alert
Hurricanes are predicted days in advance. If one approaches, you'll have time to make decisions.
❓ Frequently Asked Questions
The best time is from December to April, the peak season, which falls squarely within the dry season. It is warm without being excessive (24-31°C / 75-88°F), it barely rains and the sea is usually calm. November, once hurricane season ends, and May, before the rains, offer good weather with lower prices. We compare all twelve months in our guide to the best time to visit Cancun.
Hurricane season runs from June 1 to November 30, with the highest risk in September and October. However, hurricanes that directly hit Cancun are infrequent and are forecast days in advance.
The Caribbean water is perfect year-round: 26-27°C (79-81°F) in winter and 28-29°C (82-84°F) in summer. You'll never need a wetsuit.
During the rainy season (roughly June to October, with May as a transition month), rain showers are tropical and brief, typically in the afternoon. They last 30-60 minutes and then the sun comes out. Mornings are usually clear.
Yes. In Mexico it is mandatory to use reef-safe sunscreen (biodegradable) at beaches and cenotes. Chemicals in regular sunscreens damage coral reefs.
Sargassum is a type of seaweed that washes up on Caribbean beaches. Its peak season runs from May to October, with the worst months in July and August; from December to March levels are very low. Beaches on the east side, facing the open sea, are more affected than those on the north side. Hotels clean daily and some beaches have protective barriers. Check the current sargassum status in Cancun.