Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The arrival of December brings an average high-temperature of a still warm 28.6°C (83.5°F), nearly identical to November's 28.2°C (82.8°F). The average low-temperature, in December, in Ciudad Vieja, Guatemala, is an enjoyable 17.3°C (63.1°F).Heat index
The heat index value for December is computed to be a hot 31°C (87.8°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
In Ciudad Vieja, the average relative humidity in December is 67%.Rainfall
In December, in Ciudad Vieja, the rain falls for 6.7 days. Throughout December, 6mm (0.24") of precipitation is accumulated. In Ciudad Vieja, during the entire year, the rain falls for 228.7 days and collects up to 1368mm (53.86") of precipitation.Daylight
The month with the shortest days in Ciudad Vieja is December, with an average of 11h and 18min of daylight.On the first day of December, sunrise is at 06:12 and sunset at 17:32. On the last day of the month, sunrise is at 06:27 and sunset at 17:44 CST.
Sunshine
The month with the least sunshine in Ciudad Vieja is December, with an average of 7.6h of sunshine.UV index
January through December, with an average maximum UV index of 6, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 6 suggests these recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Ciudad Vieja in December?
What is the average humidity in December in Ciudad Vieja?
How many days does it rain in December in Ciudad Vieja?
What is the month with the shortest days in Ciudad Vieja?
How many hours of daylight does Ciudad Vieja have in December?
When is the sunrise / sunset in December in Ciudad Vieja?
What is the month with the least sunshine in Ciudad Vieja?
How long on average sun shines in December in Ciudad Vieja?
What are the months with the highest UV index in Ciudad Vieja?
When is the lowest UV index in Ciudad Vieja?
What is the UV index intensity in December in Ciudad Vieja?
Average temperature in December
Ciudad Vieja, Guatemala
- Average high temperature in December: 28.6°C
The warmest month (with the highest average high temperature) is March (30.6°C).
The month with the lowest average high temperature is October (27.1°C).
- Average low temperature in December: 17.3°C
The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (17.2°C).
Average pressure in December
Ciudad Vieja, Guatemala
- Average pressure in December: 1014mbar
The month with the highest atmospheric pressure is January (1014.6mbar).
The months with the lowest atmospheric pressure are May and October (1012.2mbar).
Average wind speed in December
Ciudad Vieja, Guatemala
- Average wind speed in December: 8.7km/h
The windiest month (with the highest average wind speed) is January (9.3km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).
Average humidity in December
Ciudad Vieja, Guatemala
- Average humidity in December: 67%
The month with the highest relative humidity is September (84%).
The month with the lowest relative humidity is March (61%).
Average rainfall in December
Ciudad Vieja, Guatemala
- Average rainfall in December: 6mm
The wettest month (with the highest rainfall) is June (240mm).
The driest month (with the least rainfall) is January (4mm).
Average rainfall days in December
Ciudad Vieja, Guatemala
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is September (29.4 days).
The month with the least rainy days is January (4.3 days).
Average daylight in December /
Average sunshine in December
Ciudad Vieja, 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 4min
The month with the most sunshine is April (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in December
Ciudad Vieja, Guatemala
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is September (0.3 days).
Average UV index in December
Ciudad Vieja, 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
Ciudad Vieja, Guatemala
- Average cloud cover in December: 11
The month with the most cloud cover is September (Cloud cover 42).
The months with the least cloud cover are January and December (Cloud cover 11).
Average visibility in December
Ciudad Vieja, 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).
