Cancún
Mexico
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Cancún, Mexico

White buildings on the white sandy beach in sharp contrast of the clear blue waters on a beach in Cancún, Mexico
White buildings on the white sandy beach in sharp contrast of the clear blue waters on a beach in Cancún, Mexico
Cancún has a tropical monsoon climate (Köppen Am), with slight variations in temperature between seasons, the wet and dry seasons are distinct. The sea provides a year-round warmth of 28°C (82.4°F) great for beach lovers. For 240 days, the sun shines on average 9 hours a day - good enough to experience what the city has to offer and complete the bucket list of things to do.

December to April are the best months - rainfall is scarce, with temperatures rarely hitting 30°C (86°F) during mid-day. April is jellyfish season heed the advice of the beach's staff and take precautionary measures. Once the summer months from May to September roll in - the average temperatures are reaching 33°C (91.4°F). The high humidity from 160mm (6.3") of rain makes days uncomfortable. However, showers do not last long, and people from cold countries come here to enjoy the weather. October and November are hurricane months but unlikely to happen. Winds from the north, called el Norte, fetch cool and breezy days, bringing the temperature down to 21°C (69.8°F) from November to March.

The best time to visit Cancún is during the dry months of March and April. The chance of rainfall is small, with only 3 rainy days. The mid-day afternoon weather is pleasant for outdoor activities, and the sea heat is conducive for a dive in the turquoise water.

Avoid traveling to Cancún from June till November. The wet season is underway - there is more rainfall and hurricanes are likely to hit in September, October, and November. The temperature tip into highs of 34°C (93.2°F), moisture from the mighty rainfall creates heat and humidity to the sweltering peak.

The dry season is on the move. The highs of 28°C (82.4°F) motivate people to experience chilly months for a great January getaway. Weather in January »

Beach lovers adore the sea temperature of 26°C (78.8°F) by spending their day lounging at the beach or having fun with water activities. Weather in February »

March in Cancún marks the start of spring and the driest month of the year with 35.6mm (1.4") of rain. People travel to the coastline to enjoy the summer beach heat of 26°C (78.8°F). Weather in March »

Good news to outdoor lovers; the dry spell extends to April in this part of Mexico. The temperature continues to rise to 32°C (89.6°F), and the sun shines for 10 glorious hours. Weather in April »

The sea provides 28°C (82.4°F) of warmth, which is not exceptionally refreshing, but still good for making the most out of the trip. Weather in May »

Don't be put off by the 12 days of a shower and a rain index of 185.4mm (7.3"), as the flora in Cancún is gorgeously verdant and green. Weather in June »

The heat is on as summer hits its stride. The highs of 33°C (91.4°F) give a lot of heat perfect for sun lovers. Bring along sun cream to protect the skin from the extreme UV levels. Weather in July »

August is the hottest month of the year and tips the scale at 34°C (93.2°F). At nighttime, the minimal clothing is needed. There are 149.9mm (5.9") of rain from 13 days of a downpour. Weather in August »

The power of the sun brings in a scorching 33°C (91.4°F) of heat; Moreover, the 14 days of a heavy downpour produces 353.1mm (13.9") of rain, creating a hot and damp atmosphere. Weather in September »

After the blazing summer months, things start to cool down to 31°C (87.8°F) with the autumn month of October. In the second wettest month of the year, the precipitation drops to 185.4mm (7.3"). Weather in October »

Ocean temperature is 28°C (82.4°F) good for any underwater adventure. Perhaps the only thing stopping the November Cancún vacation is the threat of a hurricane. Weather in November »

The climate is just warming up or better still cooling down; the highs of 28°C (82.4°F) complements the wonderful and enjoyable evenings at 21°C (69.8°F). Weather in December »

What is the coldest month in Cancún?

With an average high-temperature of 28.3°C (82.9°F) and an average low-temperature of 19.8°C (67.6°F), Enero is the coldest month in Cancún, Mexico.

How many days does it rain in Cancún?

In Cancún, Mexico, during the entire year, the rain falls for 112.7 days and collects up to 1300.2mm (51.19") of precipitation.

When is the sea coldest in Cancún?

The month with the coldest seawater in Cancún, Mexico, is Enero, with an average sea temperature of 25.6°C (78.1°F).

What is the month with the least sunshine in Cancún?

Enero, Septiembre, Noviembre and Diciembre, with an average of 6h of sunshine, are months with the least sunshine in Cancún.

When is the lowest UV index in Cancún?

Enero and Diciembre, with an average maximum UV index of 7, are months with the lowest UV index.

What are the months with the most sunshine in Cancún?

Marzo through Mayo, with an average of 8h of sunshine, are months with the most sunshine.

What is the driest month in Cancún?

The month with the least rainfall is Abril when the rain falls for 4.1 days and typically collects 41.2mm (1.62") of precipitation.

When is the highest UV index in Cancún?

Months with the highest UV index are Abril through Agosto, with an average maximum UV index of 12.

When are the longest days in Cancún?

Junio has the longest days of the year in Cancún, with an average of 13.4h of daylight.

What is the warmest month in Cancún?

The warmest month is Agosto, with an average high-temperature of 34.8°C (94.6°F) and an average low-temperature of 24.6°C (76.3°F).

When is the sea warmest in Cancún?

Agosto is the month with the warmest seawater in Cancún, with an average sea temperature of 29.4°C (84.9°F).

What is the rainiest month in Cancún?

The month with the most rainfall in Cancún is Octubre when the rain falls for 16.4 days and typically aggregates up to 271.9mm (10.7") of precipitation.

What is the month with the shortest days in Cancún?

Diciembre has the shortest days of the year, with an average of 10.9h of daylight.
Average temperature - Cancún, Mexico
Average rainfall - Cancún, Mexico

The wettest month (with the highest rainfall) is October (271.9mm).
The driest month (with the lowest rainfall) is April (41.2mm).

Average rainfall days - Cancún, Mexico

The month with the highest number of rainy days is October (16.4 days).
The month with the lowest number of rainy days is April (4.1 days).

Average sea temperature - Cancún, Mexico

The best month for swimming (with the highest average sea temperature) is August (29.4°C).
The coldest month (with the lowest average sea temperature) is January (25.6°C).

Average daylight / Average sunshine - Cancún, Mexico

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

Months with most sunshine are March, April and May (Average sunshine: 8h).
Months with least sunshine are January, September, November and December (Average sunshine: 6).

Average UV index - Cancún, Mexico