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
Weather in December
Temperature
The shift from November to December is characterized by an average high-temperature of a still pleasant 22.1°C (71.8°F), not significantly different from the 22.5°C (72.5°F) of November. La Unión observes an average low-temperature of 14.4°C (57.9°F) during December.Humidity
The average relative humidity in December in La Unión is 89%.Rainfall
In La Unión, Guatemala, during December, the rain falls for 21.4 days and regularly aggregates up to 37mm (1.46") of precipitation. Throughout the year, there are 297.7 rainfall days, and 1500mm (59.06") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 11h and 18min of daylight.On the first day of the month, sunrise is at 06:07 and sunset at 17:25. On the last day of December, sunrise is at 06:22 and sunset at 17:38 CST.
Sunshine
The average sunshine in December in La Unión is 5.6h.UV index
The months with the lowest UV index in La Unión, Guatemala, are January, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 during December translates into the following guidance:
Ensure safety - Sun damage prevention is strongly urged. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What are the temperatures in La Unión in December?
What is the average humidity in December in La Unión?
How much does it rain in La Unión in December?
What is the month with the shortest days in La Unión?
How many hours of daylight does La Unión have in December?
When is the sunrise / sunset in December in La Unión?
How many hours of sunshine does La Unión have in December?
What are the months with the lowest UV index in La Unión?
What is the UV index reading in December in La Unión?
Average temperature in December
La Unión, Guatemala
- Average high temperature in December: 22.1°C
The warmest month (with the highest average high temperature) is April (28.8°C).
The month with the lowest average high temperature is January (21.8°C).
- Average low temperature in December: 14.4°C
The month with the highest average low temperature is May (18.6°C).
The coldest month (with the lowest average low temperature) is January (14.1°C).
Average pressure in December
La Unión, Guatemala
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is January (1015.9mbar).
The months with the lowest atmospheric pressure are May and September (1012.2mbar).
Average wind speed in December
La Unión, Guatemala
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is January (7.8km/h).
The calmest month (with the lowest average wind speed) is September (4.4km/h).
Average humidity in December
La Unión, Guatemala
- Average humidity in December: 89%
The months with the highest relative humidity are October and November (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
La Unión, Guatemala
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is September (261mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in December
La Unión, Guatemala
- Average rainfall days in December: 21.4 days
The month with the highest number of rainy days is September (29.2 days).
The month with the least rainy days is February (19.1 days).
Average daylight in December /
Average sunshine in December
La Unión, 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: 5h and 4min
The month with the most sunshine is April (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).
Average sunshine days in December
La Unión, Guatemala
- Average sunshine days in December: 6 days
The month with the most sunshine days is March (8.3 days).
The month with the least sunshine days is September (0.7 days).
Average UV index in December
La Unión, Guatemala
- Average UV index in December: 4
The months with the highest UV index are March, April, May and June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 4).
Average cloud cover in December
La Unión, Guatemala
- Average cloud cover in December: 68
The month with the most cloud cover is November (Cloud cover 75).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in December
La Unión, Guatemala
- Average visibility in December: 5km
The month with the highest visibility is April (8km).
The months with the lowest visibility are October, November and December (5km).
La Unión, Guatemala
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