December weather forecast
San Simón Almolongas, Mexico

December

Weather in December

The first month of the winter, December, is also a moderately hot month in San Simón Almolongas, Mexico, with an average temperature fluctuating between 29°C (84.2°F) and 21°C (69.8°F).

Temperature

The onset of December manifests an average high-temperature of a still warm 29°C (84.2°F), demonstrating a minor variation from the preceding month. In December, in San Simón Almolongas, Mexico, the average low-temperature is an agreeable 21°C (69.8°F).

Heat index

The average heat index in December is calculated to be a tropical 32°C (89.6°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

In December, the average relative humidity is 67%.

Rainfall

December is the month with the least rainfall in San Simón Almolongas. Rain falls for 3.2 days and accumulates 2mm (0.08") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 12min of daylight.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:52 pm. On the last day of December, sunrise is at 6:55 am and sunset at 6:05 pm CST.

Sunshine

In December, the average sunshine is 8.7h.

UV index

The months with the lowest UV index are January, August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

How hot does it get in San Simón Almolongas in December?
December temperatures vary between a high-temperature of 29°C (84.2°F) and a low-temperature of 21°C (69.8°F). In December, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 32°C (89.6°F).
What is the average humidity in December in San Simón Almolongas?
In San Simón Almolongas, Mexico, the average relative humidity in December is 67%.
What is the driest month in San Simón Almolongas?
December is the month with the least rainfall in San Simón Almolongas. Rain falls for 3.2 days and accumulates 2mm (0.08") of precipitation.
How much does it rain in San Simón Almolongas in December?
In December, in San Simón Almolongas, Mexico, the rain falls for 3.2 days. Throughout December, 2mm (0.08") of precipitation is accumulated.
What is the month with the shortest days in San Simón Almolongas?
With an average of 11h and 12min of daylight, December has the shortest days of the year in San Simón Almolongas.
How many hours of daylight does San Simón Almolongas have in December?
The average day length in December is 11h and 10min.
What time are sunrise and sunset in December in San Simón Almolongas?
In December, on the first day of the month, sunrise is at 6:39 am and sunset at 5:52 pm. On the last day of the month, in San Simón Almolongas, sunrise is at 6:55 am and sunset at 6:05 pm CST.
How long on average sun shines in December in San Simón Almolongas?
In December, the average sunshine duration in San Simón Almolongas, Mexico, is 8.7h.
What is the month with the lowest UV index in San Simón Almolongas?
The months with the lowest UV index are January, August, October through December, with an average maximum UV index of 6.
How high is the UV index in December in San Simón Almolongas?
In San Simón Almolongas, Mexico, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - San Simón Almolongas, Mexico
Average temperature in December
San Simón Almolongas, Mexico
  • Average high temperature in December: 29°C

The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (28.9°C).

  • Average low temperature in December: 21°C

The month with the highest average low temperature is May (24.6°C).
The coldest months (with the lowest average low temperature) are January and December (21°C).

Average pressure in December - San Simón Almolongas, Mexico
Average pressure in December
San Simón Almolongas, Mexico
  • Average pressure in December: 1013.6mbar

The month with the highest atmospheric pressure is January (1014.2mbar).
The month with the lowest atmospheric pressure is May (1011.5mbar).

Average wind speed in December - San Simón Almolongas, Mexico
Average wind speed in December
San Simón Almolongas, Mexico
  • Average wind speed in December: 7.2km/h

The windiest month (with the highest average wind speed) is April (8.9km/h).
The calmest month (with the lowest average wind speed) is November (7.1km/h).

Average humidity in December - San Simón Almolongas, Mexico
Average humidity in December
San Simón Almolongas, Mexico
  • Average humidity in December: 67%

The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (63%).

Average rainfall in December - San Simón Almolongas, Mexico
Average rainfall in December
San Simón Almolongas, Mexico
  • Average rainfall in December: 2mm

The wettest month (with the highest rainfall) is September (160mm).
The driest month (with the least rainfall) is December (2mm).

Average rainfall days in December - San Simón Almolongas, Mexico
Average rainfall days in December
San Simón Almolongas, Mexico
  • Average rainfall days in December: 3.2 days

The month with the highest number of rainy days is September (27.5 days).
The months with the least rainy days are January and February (3.1 days).

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

The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).

  • Average sunshine in December: 8h and 4min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 7h and 36min).

Average sunshine days in December - San Simón Almolongas, Mexico
Average sunshine days in December
San Simón Almolongas, Mexico
  • Average sunshine days in December: 26 days

The month with the most sunshine days is December (26 days).
The month with the least sunshine days is September (0.9 days).

Average UV index in December - San Simón Almolongas, Mexico
Average UV index in December
San Simón Almolongas, Mexico
  • Average UV index in December: 6

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

Average cloud cover in December - San Simón Almolongas, Mexico
Average cloud cover in December
San Simón Almolongas, Mexico
  • Average cloud cover in December: 9

The month with the most cloud cover is September (Cloud cover 37).
The months with the least cloud cover are February and December (Cloud cover 9).

Average visibility in December - San Simón Almolongas, Mexico
Average visibility in December
San Simón Almolongas, 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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