December weather forecastColomba, Guatemala

December

Weather in December

The first month of the winter, December, is still a tropical month in Colomba, Guatemala, with temperature in the range of an average high of 30.5°C (86.9°F) and an average low of 19.5°C (67.1°F).

Temperature

As November transitions into December, Colomba records an average high-temperature of a still tropical 30.5°C (86.9°F), showing a gentle shift from the preceding month. During the month of December, Colomba anticipates a mean low-temperature of 19.5°C (67.1°F).

Heat index

The heat index in December is calculated to be a fiery hot 35°C (95°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity in Colomba is 64%.

Rainfall

In Colomba, in December, it is raining for 7.6 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 222.8 rainfall days, and 1340mm (52.76") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Colomba, with an average of 11h and 18min of daylight.
On the first day of December, sunrise is at 06:16 and sunset at 17:35. On the last day of the month, sunrise is at 06:32 and sunset at 17:48 CST.

Sunshine

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

UV index

January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

December temperatures vary between a high-temperature of 30.5°C (86.9°F) and a low-temperature of 19.5°C (67.1°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is calculated to be 35°C (95°F).

The average relative humidity in December is 64%.

In Colomba, Guatemala, during December, the rain falls for 7.6 days and regularly aggregates up to 21mm (0.83") of precipitation.

The month with the shortest days in Colomba, Guatemala, is December, with an average of 11h and 18min of daylight.

The average day length in December in Colomba is 11h and 16min.

In December, on the first day of the month, sunrise is at 06:16 and sunset at 17:35. On the last day of the month, sunrise is at 06:32 and sunset at 17:48 CST.

The average sunshine duration in December in Colomba, Guatemala, is 7.6h.

January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index in Colomba.

In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Colomba, Guatemala

  • Average high temperature in December: 30.5°C

The warmest month (with the highest average high temperature) is April (32.5°C).
The month with the lowest average high temperature is October (29.8°C).

  • Average low temperature in December: 19.5°C

The month with the highest average low temperature is May (22.7°C).
The coldest month (with the lowest average low temperature) is December (19.5°C).

Average pressure in December
Colomba, Guatemala

  • Average pressure in December: 1013.7mbar

The month with the highest atmospheric pressure is January (1014.3mbar).
The month with the lowest atmospheric pressure is October (1012mbar).

Average wind speed in December
Colomba, Guatemala

  • Average wind speed in December: 6.1km/h

The windiest month (with the highest average wind speed) is March (6.7km/h).
The calmest months (with the lowest average wind speed) are May, June, September and October (5.5km/h).

Average humidity in December
Colomba, Guatemala

  • Average humidity in December: 64%

The months with the highest relative humidity are September and October (78%).
The months with the lowest relative humidity are January, February and March (59%).

Average rainfall in December
Colomba, Guatemala

  • Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is May (261mm).
The driest months (with the least rainfall) are January and February (11mm).

Average rainfall days in December
Colomba, Guatemala

  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is September (27.7 days).
The month with the least rainy days is February (5.3 days).

Average daylight in December /
Average sunshine in December
Colomba, Guatemala

  • Average daylight in December: 11h and 18min

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 36min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 30min).

Average sunshine days in December
Colomba, Guatemala

  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is September (1.3 days).

Average UV index in December
Colomba, Guatemala

  • Average UV index in December: 6

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

Average cloud cover in December
Colomba, Guatemala

  • Average cloud cover in December: 12

The month with the most cloud cover is September (Cloud cover 35).
The month with the least cloud cover is January (Cloud cover 11).

Average visibility in December
Colomba, Guatemala

  • Average visibility in December: 10km

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