December weather forecastChichén Itzá, Mexico

December

Weather in December

The first month of the winter, December, is also a moderately hot month in Chichén Itzá, Mexico, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 18.7°C (65.7°F).

Temperature

December's advent denotes a minor fluctuation in the average high-temperature to a still warm 28.6°C (83.5°F) from November's 29.5°C (85.1°F). An average nighttime temperature of 18.7°C (65.7°F) is observed during December.

Heat index

During December, the heat index is evaluated at a hot 34°C (93.2°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

The average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 14 days. Throughout December, 27mm (1.06") of precipitation is accumulated. In Chichén Itzá, during the entire year, the rain falls for 195.8 days and collects up to 599mm (23.58") of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 6:14 am and sunset at 5:12 pm. On the last day of December, sunrise is at 6:30 am and sunset at 5:24 pm CST.

Sunshine

The average sunshine in December in Chichén Itzá is 6.1h.

UV index

January, February, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

The high-temperature during December is 28.6°C (83.5°F) and the low-temperature is 18.7°C (65.7°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in December is evaluated at 34°C (93.2°F).

In Chichén Itzá, Mexico, the average relative humidity in December is 80%.

In Chichén Itzá, in December, during 14 rainfall days, 27mm (1.06") of precipitation is typically accumulated.

The month with the shortest days is December, with an average of 10h and 54min of daylight.

In December, the average day length is 10h and 54min.

In December, on the first day of the month, sunrise is at 6:14 am and sunset at 5:12 pm. On the last day of the month, in Chichén Itzá, sunrise is at 6:30 am and sunset at 5:24 pm CST.

In December, the average sunshine duration is 6.1h.

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

In Chichén Itzá, 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 Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Chichén Itzá, Mexico

  • Average high temperature in December: 28.6°C

The warmest month (with the highest average high temperature) is May (34.8°C).
The month with the lowest average high temperature is January (28.2°C).

  • Average low temperature in December: 18.7°C

The month with the highest average low temperature is June (23.3°C).
The coldest month (with the lowest average low temperature) is January (17.8°C).

Average pressure in December
Chichén Itzá, Mexico

  • Average pressure in December: 1016.4mbar

The month with the highest atmospheric pressure is January (1017.5mbar).
The month with the lowest atmospheric pressure is September (1012.1mbar).

Average wind speed in December
Chichén Itzá, Mexico

  • Average wind speed in December: 10.1km/h

The windiest month (with the highest average wind speed) is April (12.6km/h).
The calmest month (with the lowest average wind speed) is September (7.9km/h).

Average humidity in December
Chichén Itzá, Mexico

  • Average humidity in December: 80%

The months with the highest relative humidity are September and October (82%).
The months with the lowest relative humidity are March and April (68%).

Average rainfall in December
Chichén Itzá, Mexico

  • Average rainfall in December: 27mm

The wettest month (with the highest rainfall) is June (116mm).
The driest month (with the least rainfall) is March (18mm).

Average rainfall days in December
Chichén Itzá, Mexico

  • Average rainfall days in December: 14 days

The month with the highest number of rainy days is September (23.8 days).
The months with the least rainy days are February and March (9.3 days).

Average daylight in December /
Average sunshine in December
Chichén Itzá, Mexico

  • Average daylight in December: 10h and 54min

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: 6h and 6min

The month with the most sunshine is May (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in December
Chichén Itzá, Mexico

  • Average sunshine days in December: 13 days

The month with the most sunshine days is March (19.2 days).
The month with the least sunshine days is September (3.5 days).

Average UV index in December
Chichén Itzá, Mexico

  • Average UV index in December: 6

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

Average cloud cover in December
Chichén Itzá, Mexico

  • Average cloud cover in December: 43

The month with the most cloud cover is September (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 32).

Average visibility in December
Chichén Itzá, Mexico

  • Average visibility in December: 7km

The months with the highest visibility are March and April (9km).
The month with the lowest visibility is September (6km).