December weather forecast
Mapastepec, Mexico

December

Weather in December

The first month of the winter, December, is still a warm month in Mapastepec, Mexico, with an average temperature varying between 29.8°C (85.6°F) and 22.2°C (72°F).

Temperature

The onset of December brings with it an average high-temperature of a warm 29.8°C (85.6°F), showing a negligible variation from the month before. An average low-temperature of 22.2°C (72°F) is noted during the month of December.

Heat index

December's heat index is appraised at a hot 34°C (93.2°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In December, the average relative humidity is 66%.

Rainfall

In Mapastepec, in December, during 6.7 rainfall days, 15mm (0.59") of precipitation is typically accumulated. Throughout the year, in Mapastepec, there are 226.8 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

With an average of 11h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:22 am and sunset at 5:39 pm. On the last day of December, sunrise is at 6:37 am and sunset at 5:51 pm CST.

Sunshine

In December, the average sunshine in Mapastepec is 7.6h.

UV index

The months with the highest UV index in Mapastepec are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Mapastepec. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

How hot does it get in Mapastepec in December?
The high-temperature, in December, in Mapastepec, is 29.8°C (85.6°F), while the low-temperature averages to 22.2°C (72°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 34°C (93.2°F).
What is the average humidity in December in Mapastepec?
In December, the average relative humidity is 66%.
How much does it rain in Mapastepec in December?
In Mapastepec, Mexico, in December, during 6.7 rainfall days, 15mm (0.59") of precipitation is typically accumulated.
What is the month with the shortest days in Mapastepec?
The month with the shortest days is December, with an average of 11h and 12min of daylight.
How many hours of daylight does Mapastepec have in December?
The average day length in December in Mapastepec is 11h and 14min.
What time are sunrise and sunset in December in Mapastepec?
In December, on the first day of the month, sunrise is at 6:22 am and sunset at 5:39 pm. On the last day of the month, in Mapastepec, Mexico, sunrise is at 6:37 am and sunset at 5:51 pm CST.
How long on average sun shines in December in Mapastepec?
In Mapastepec, Mexico, the average sunshine duration in December is 7.6h.
What are the months with the highest UV index in Mapastepec?
The months with the highest UV index in Mapastepec are January through December, with an average maximum UV index of 7.
What are the months with the lowest UV index in Mapastepec?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
How high is the UV index in December in Mapastepec?
The average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Mapastepec, Mexico
Average temperature in December
Mapastepec, Mexico
  • Average high temperature in December: 29.8°C

The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).

  • Average low temperature in December: 22.2°C

The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).

Average pressure in December - Mapastepec, Mexico
Average pressure in December
Mapastepec, Mexico
  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).

Average wind speed in December - Mapastepec, Mexico
Average wind speed in December
Mapastepec, Mexico
  • Average wind speed in December: 6.7km/h

The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).

Average humidity in December - Mapastepec, Mexico
Average humidity in December
Mapastepec, Mexico
  • Average humidity in December: 66%

The month with the highest relative humidity is October (76%).
The months with the lowest relative humidity are January, February and March (63%).

Average rainfall in December - Mapastepec, Mexico
Average rainfall in December
Mapastepec, Mexico
  • Average rainfall in December: 15mm

The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).

Average rainfall days in December - Mapastepec, Mexico
Average rainfall days in December
Mapastepec, Mexico
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).

Average daylight in December / Average sunshine in December - Mapastepec, Mexico
Average daylight in December /
Average sunshine in December
Mapastepec, Mexico
  • Average daylight in December: 11h and 1min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in December: 7h and 4min

The months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in December - Mapastepec, Mexico
Average sunshine days in December
Mapastepec, Mexico
  • Average sunshine days in December: 19.4 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).

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

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

Average cloud cover in December - Mapastepec, Mexico
Average cloud cover in December
Mapastepec, Mexico
  • Average cloud cover in December: 11

The month with the most cloud cover is June (Cloud cover 36).
The months with the least cloud cover are January and December (Cloud cover 11).

Average visibility in December - Mapastepec, Mexico
Average visibility in December
Mapastepec, Mexico
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (10km).
The months with the lowest visibility are May and August (9km).

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