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
Unión Roja records an average high-temperature of a warm 29.8°C (85.6°F) as December arrives, nearly mirroring the previous month's climate. In December, Unión Roja reports a consistent average low-temperature of 22.2°C (72°F) during the nights.Heat index
The heat index value during December is estimated at a tropical 34°C (93.2°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Know that the heat index computations account for shaded terrains and slight winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
The average relative humidity in December is 66%.Rainfall
In Unión Roja, in December, it is raining for 6.7 days, with typically 15mm (0.59") of accumulated precipitation. Throughout the year, there are 227 rainfall days, and 1231mm (48.46") of precipitation is accumulated.Daylight
With an average of 11h and 18min of daylight, December has the shortest days of the year.On the first day of December in Unión Roja, sunrise is at 6:19 am and sunset at 5:37 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 5:49 pm CST.
Sunshine
In Unión Roja, the average sunshine in December is 7.6h.UV index
January through December, with an average maximum UV index of 7, 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 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 7 in December translates into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Unión Roja have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Unión Roja have in December?
What are the months with the highest UV index?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Unión Roja, Mexico
- Average high temperature in December: 29.8°C
The warmest month (with the highest average high temperature) is April (31.8°C).
The month with the lowest average high temperature is October (29.7°C).
- Average low temperature in December: 22.2°C
The month with the highest average low temperature is May (25.1°C).
The coldest months (with the lowest average low temperature) are January and December (22.2°C).
Average pressure in December
Unión Roja, Mexico
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is October (1011.6mbar).
Average wind speed in December
Unión Roja, Mexico
- Average wind speed in December: 6.7km/h
The windiest month (with the highest average wind speed) is March (8.1km/h).
The calmest month (with the lowest average wind speed) is November (6.4km/h).
Average humidity in December
Unión Roja, Mexico
- Average humidity in December: 66%
The months with the highest relative humidity are September and October (76%).
The months with the lowest relative humidity are January, February and March (63%).
Average rainfall in December
Unión Roja, Mexico
- Average rainfall in December: 15mm
The wettest month (with the highest rainfall) is May (244mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in December
Unión Roja, Mexico
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is May (29.1 days).
The month with the least rainy days is January (3.9 days).
Average daylight in December /
Average sunshine in December
Unión Roja, Mexico
- 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 months with the most sunshine are May and July (Average sunshine: 11h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).
Average sunshine days in December
Unión Roja, Mexico
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (0.6 days).
Average UV index in December
Unión Roja, Mexico
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Unión Roja, Mexico
- Average cloud cover in December: 11
The month with the most cloud cover is September (Cloud cover 38).
The months with the least cloud cover are January and December (Cloud cover 11).
Average visibility in December
Unión Roja, Mexico
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, October, November and December (10km).
The months with the lowest visibility are May, August and September (9km).
