December weather forecast and climate
Cobá, Mexico

December, the first month of the winter, in Cobá, is also a moderately hot month, with average temperature varying between 22.2°C (72°F) and 27.6°C (81.7°F).

Temperature

In December, the average high-temperature is almost the same as in November - a still moderately hot 27.6°C (81.7°F). The average low-temperature, in Cobá, is 22.2°C (72°F).

Heat index

In December, the average heat index is calculated to a hot 30.9°C (87.6°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, wind, pregnancy, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Cobá, it is raining for 18.5 days, with typically 47mm (1.85") of accumulated precipitation. In Cobá, during the entire year, the rain falls for 210.8 days and collects up to 810mm (31.89") of precipitation.

Daylight

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

Sunshine

In Cobá, the average sunshine is 8.4h.

UV index

Months with the lowest UV index are January, February, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Cobá?

The average high-temperature, in December, in Cobá, is 27.6°C (81.7°F), while the average low-temperature is 22.2°C (72°F). In December, the average heat index (a.k.a. 'real feel', 'feels like'), that combines relative humidity and air temperature, is evaluated at 30.9°C (87.6°F).

What is the average humidity in December in Cobá?

The average relative humidity in December in Cobá, Mexico, is 78%.

How many days does it rain in December in Cobá?

In Cobá, in December, during 18.5 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

What is the month with the shortest days in Cobá?

With an average of 10.9h of daylight, December has the shortest days of the year in Cobá, Mexico.

How many hours of daylight does Cobá have in December?

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

How long on average sun shines in December in Cobá?

In Cobá, the average sunshine in December is 8.4h.

What are the months with the lowest UV index in Cobá?

January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Cobá.

What is the UV index intensity in December in Cobá?

The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.
Average temperature in December - Cobá, Mexico
  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (26.7°C).

  • Average low temperature in December: 22.2°C

The month with the highest average low temperature is August (26°C).
The coldest month (with the lowest average low temperature) is January (20.8°C).

Average humidity in December - Cobá, Mexico
  • Average humidity in December: 78%

Months with the highest relative humidity are June and October (80%).
The month with the lowest relative humidity is March (73%).

Average rainfall in December - Cobá, Mexico
  • Average rainfall in December: 47mm

The wettest month (with the highest rainfall) is June (139mm).
The driest month (with the least rainfall) is March (21mm).

Average rainfall days in December - Cobá, Mexico
  • Average rainfall days in December: 18.5 days

The month with the highest number of rainy days is September (23.2 days).
The month with the least rainy days is April (11.3 days).

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

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

  • Average sunshine in December: 8.4h

Months with the most sunshine are July and August (Average sunshine: 9.2h).
The month with the least sunshine is January (Average sunshine: 7.9h).

Average UV index in December - Cobá, Mexico
  • Average UV index in December: 6

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