December weather forecast
Isla Mujeres, Mexico

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Isla Mujeres, Mexico, with a view of the glorious Mexico Caribbean Beach Hotel
Isla Mujeres, Mexico, with a view of the glorious Mexico Caribbean Beach Hotel

Weather in December

December marks the termination of another year in Isla Mujeres, Mexico, with moderately cooler weather conditions. The high temperature records a low of 26.9°C (80.4°F), ensuing a mild atmosphere. The final month maintains a decent amount of sunshine complementing the festive spirit of the holiday season. The rainfall and sea temperature decrease further, signaling the full onset of winter. As December folds up, the cycle of the unique blend of tropical and temperate weather prepares to commence again.

Temperature

As November turns into December, the average high-temperatures rest at a still warm 26.9°C (80.4°F), showing a minor variation from the prior month. Nighttime temperature reflects an average dip to a still warm 23.5°C (74.3°F) in December, subtly cooler than its daytime highs.

Humidity

The average relative humidity in December in Isla Mujeres is 76%.

Rainfall

In Isla Mujeres, during December, the rain falls for 18.8 days and regularly aggregates up to 50mm (1.97") of precipitation. In Isla Mujeres, during the entire year, the rain falls for 219.4 days and collects up to 737mm (29.02") of precipitation.

Sea temperature

In December, the average sea temperature in Isla Mujeres is 27°C (80.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Isla Mujeres.
On the first day of December, sunrise is at 7:08 am and sunset at 6:04 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 6:16 pm EST.

Sunshine

In Isla Mujeres, the average sunshine in December is 8.4h.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Isla Mujeres. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
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Frequently asked questions

What are December temperatures in Isla Mujeres?

During December, Isla Mujeres experiences an average high-temperature of 26.9°C (80.4°F) and a low-temperature of 23.5°C (74.3°F). In November, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is computed to be 30°C (86°F).

What is the average humidity in December in Isla Mujeres?

In Isla Mujeres, Mexico, the average relative humidity in December is 76%.

How much does it rain in Isla Mujeres in December?

In Isla Mujeres, in December, during 18.8 rainfall days, 50mm (1.97") of precipitation is typically accumulated.

What is the water temperature in December in Isla Mujeres?

In December, the average sea temperature in Isla Mujeres, Mexico, is 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the month with the shortest days in Isla Mujeres?

December has the shortest days of the year in Isla Mujeres, with an average of 10h and 54min of daylight.

What is the average length of the day in December in Isla Mujeres?

The average day length in December in Isla Mujeres is 10h and 52min.

What time are sunrise and sunset in December in Isla Mujeres?

On the first day of December in Isla Mujeres, Mexico, sunrise is at 7:08 am and sunset at 6:04 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 6:16 pm EST.

How long on average sun shines in December in Isla Mujeres?

In December, the average sunshine duration is 8.4h.

When is the lowest UV index in Isla Mujeres?

The months with the lowest UV index in Isla Mujeres are January, February, November and December, with an average maximum UV index of 6.

What is the UV index reading in December in Isla Mujeres?

In Isla Mujeres, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in December
Isla Mujeres, Mexico

Average temperature in December - Isla Mujeres, Mexico
  • Average high temperature in December: 26.9°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (25.9°C).

  • Average low temperature in December: 23.5°C

The month with the highest average low temperature is August (27.1°C).
The coldest month (with the lowest average low temperature) is January (22.2°C).

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Average pressure in December
Isla Mujeres, Mexico

Average pressure in December - Isla Mujeres, Mexico
  • Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is January (1017.7mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).

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Average wind speed in December
Isla Mujeres, Mexico

Average wind speed in December - Isla Mujeres, Mexico
  • Average wind speed in December: 17.2km/h

The windiest month (with the highest average wind speed) is March (19.1km/h).
The calmest month (with the lowest average wind speed) is July (13.3km/h).

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Average humidity in December
Isla Mujeres, Mexico

Average humidity in December - Isla Mujeres, Mexico
  • Average humidity in December: 76%

The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is March (73%).

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Average rainfall in December
Isla Mujeres, Mexico

Average rainfall in December - Isla Mujeres, Mexico
  • Average rainfall in December: 50mm

The wettest month (with the highest rainfall) is October (115mm).
The driest month (with the least rainfall) is March (19mm).

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Average rainfall days in December
Isla Mujeres, Mexico

Average rainfall days in December - Isla Mujeres, Mexico
  • Average rainfall days in December: 18.8 days

The month with the highest number of rainy days is October (23.8 days).
The month with the least rainy days is April (11.3 days).

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Average sea temperature in December
Isla Mujeres, Mexico

Average sea temperature in December - Isla Mujeres, Mexico
  • Average sea temperature in December: 27°C

The best months for swimming (with the highest average sea temperature) are July, August, September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (26°C).

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Average daylight in December /
Average sunshine in December
Isla Mujeres, Mexico

Average daylight in December / Average sunshine in December - Isla Mujeres, Mexico
  • Average daylight in December: 10h and 5min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 7h and 42min).

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Average sunshine days in December
Isla Mujeres, Mexico

Average sunshine days in December - Isla Mujeres, Mexico
  • Average sunshine days in December: 6.2 days

The month with the most sunshine days is April (13.5 days).
The month with the least sunshine days is October (3.6 days).

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Average UV index in December
Isla Mujeres, Mexico

Average UV index in December - Isla Mujeres, Mexico
  • Average UV index in December: 6

The months with the highest UV index are March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 6).

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Average cloud cover in December
Isla Mujeres, Mexico

Average cloud cover in December - Isla Mujeres, Mexico
  • Average cloud cover in December: 36

The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 23).

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Average visibility in December
Isla Mujeres, Mexico

Average visibility in December - Isla Mujeres, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Isla Mujeres, Mexico

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