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

December 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
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). Low temperatures make the body feel cool, fresh, and less sweaty with a rain index of 78.7mm (3.1").
Experience what Cancún offers with 8 hours of sunshine. Spending Christmas on the beach is not a bad idea with the warmth of the sea at 27°C (80.6°F).

What is the temperature in December in Cancún?

The average high-temperature, in December, in Cancún, is 28.6°C (83.5°F), while the average low-temperature is 20.5°C (68.9°F).

How much does it rain in Cancún in December?

In December, in Cancún, Mexico, the rain falls for 9.8 days. Throughout December, 86.1mm (3.4") of precipitation is accumulated.

What is the sea water temperature in December in Cancún?

In December, the average sea temperature is 26.5°C (79.7°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Cancún?

December has the shortest days of the year in Cancún, with an average of 10.9h of daylight.

How many hours of daylight does Cancún have in December?

In Cancún, Mexico, the average length of the day in December is 10.9h.

What is the month with the least sunshine in Cancún?

Months with the least sunshine in Cancún are January, September, November and December, with an average of 6h of sunshine.

How long on average sun shines in December in Cancún?

The average sunshine in December in Cancún, Mexico, is 6h.

When is the lowest UV index in Cancún?

January and December, with an average maximum UV index of 7, are months with the lowest UV index.

What is the UV index reading in December in Cancún?

In Cancún, Mexico, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Cancún, Mexico
  • Average high temperature in December: 28.6°C

The warmest month (with the highest average high temperature) is August (34.8°C).
The month with the lowest average high temperature is January (28.3°C).

  • Average low temperature in December: 20.5°C

The month with the highest average low temperature is July (24.8°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).

Average rainfall in December - Cancún, Mexico
  • Average rainfall in December: 86.1mm

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 in December - Cancún, Mexico
  • Average rainfall days in December: 9.8 days

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 in December - Cancún, Mexico
  • Average sea temperature in December: 26.5°C

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 in December / Average sunshine in December - Cancún, Mexico
  • Average daylight in December: 10.9h

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

  • Average sunshine in December: 6h

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 in December - Cancún, Mexico
  • Average UV index in December: 7

Months with the highest UV index are April, May, June, July and August (UV index 12).
Months with the lowest UV index are January and December (UV index 7).