December weather forecast
San José El Idolo, Guatemala

December

Weather in December

The first month of the winter, December, is also a moderately hot month in San José El Idolo, Guatemala, with an average temperature varying between 17.6°C (63.7°F) and 29.5°C (85.1°F).

Temperature

An average high-temperature of a still moderately hot 29.5°C (85.1°F) marks December, exhibiting a close resemblance to the conditions in November. San José El Idolo's average low-temperature in the month of December is recorded at a comfortable 17.6°C (63.7°F).

Heat index

December's mean heat index is appraised at a hot 32°C (89.6°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.

Humidity

In San José El Idolo, the average relative humidity in December is 63%.

Rainfall

In San José El Idolo, in December, it is raining for 7.6 days, with typically 17mm (0.67") of accumulated precipitation. Throughout the year, in San José El Idolo, there are 222.8 rainfall days, and 1491mm (58.7") of precipitation is accumulated.

Daylight

The month with the shortest days in San José El Idolo is December, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:15 and sunset at 17:34. On the last day of December, in San José El Idolo, sunrise is at 06:30 and sunset at 17:47 CST.

Sunshine

The average sunshine in December is 7.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

Is it hot in San José El Idolo during December?
The high-temperature during December is 29.5°C (85.1°F) and the low-temperature is 17.6°C (63.7°F). In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 32°C (89.6°F).
What is the average humidity in December in San José El Idolo?
In December, the average relative humidity in San José El Idolo, Guatemala, is 63%.
How many days does it rain in December in San José El Idolo?
In San José El Idolo, Guatemala, during December, the rain falls for 7.6 days and regularly aggregates up to 17mm (0.67") of precipitation.
What is the month with the shortest days in San José El Idolo?
December has the shortest days of the year in San José El Idolo, with an average of 11h and 18min of daylight.
How many hours of daylight does San José El Idolo have in December?
In San José El Idolo, the average day length in December is 11h and 17min.
When is the sunrise / sunset in December in San José El Idolo?
On the first day of December in San José El Idolo, sunrise is at 06:15 and sunset at 17:34. On the last day of the month, sunrise is at 06:30 and sunset at 17:47 CST.
How many hours of sunshine does San José El Idolo have in December?
In December, the average sunshine duration is 7.5h.
What is the month with the highest UV index in San José El Idolo?
January through December, with an average maximum UV index of 6, are months with the highest UV index in San José El Idolo, Guatemala.
When is the lowest UV index in San José El Idolo?
The months with the lowest UV index in San José El Idolo, Guatemala, are January through December, with an average maximum UV index of 6.
How high is the UV index in December in San José El Idolo?
The average daily maximum UV index in December in San José El Idolo, Guatemala, is 6. A UV Index value of 6 to 7 symbolizes 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 José El Idolo, Guatemala
  • Average high temperature in December: 29.5°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is September (28.5°C).

  • Average low temperature in December: 17.6°C

The month with the highest average low temperature is May (20.5°C).
The coldest month (with the lowest average low temperature) is December (17.6°C).

Average pressure in December
San José El Idolo, Guatemala
  • Average pressure in December: 1013.9mbar

The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).

Average wind speed in December
San José El Idolo, Guatemala
  • Average wind speed in December: 6.4km/h

The windiest month (with the highest average wind speed) is March (6.6km/h).
The calmest month (with the lowest average wind speed) is May (5.1km/h).

Average humidity in December
San José El Idolo, Guatemala
  • Average humidity in December: 63%

The months with the highest relative humidity are September and October (79%).
The months with the lowest relative humidity are January, February and March (59%).

Average rainfall in December
San José El Idolo, Guatemala
  • Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is May (274mm).
The driest months (with the least rainfall) are January and February (7mm).

Average rainfall days in December
San José El Idolo, Guatemala
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (4.8 days).

Average daylight in December /
Average sunshine in December
San José El Idolo, Guatemala
  • Average daylight in December: 11h and 2min

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 18min).

  • Average sunshine in December: 7h and 3min

The months with the most sunshine are April and July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).

Average sunshine days in December
San José El Idolo, Guatemala
  • Average sunshine days in December: 21.5 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is September (1.5 days).

Average UV index in December
San José El Idolo, Guatemala
  • Average UV index in December: 6

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

Average cloud cover in December
San José El Idolo, Guatemala
  • Average cloud cover in December: 13

The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 12).

Average visibility in December
San José El Idolo, Guatemala
  • Average visibility in December: 10km

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

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