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 sees a slight increase in the average high-temperature, transitioning from a warm 23.8°C (74.8°F) to a still moderately hot 27.6°C (81.7°F). Chillán Viejo, in December, displays a significant temperature downturn during the night, with an average reading of 11.2°C (52.2°F).Heat index
For December, the heat index is calculated to be 29°C (84.2°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Consider that heat index readings are for situations in the shade and light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The average relative humidity in December is 56%.Rainfall
In December, the rain falls for 3.4 days. Throughout December, 12mm (0.47") of precipitation is accumulated. Throughout the year, there are 88.3 rainfall days, and 706mm (27.8") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 36min of daylight.On the first day of the month, sunrise is at 06:23 and sunset at 20:52. On the last day of December, sunrise is at 06:33 and sunset at 21:10 -03.
Sunshine
In Chillán Viejo, the average sunshine in December is 10.8h.UV index
In December, the average daily maximum UV index in Chillán Viejo is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 5 in December leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the temperature in December in Chillán Viejo?
What is the average humidity in December in Chillán Viejo?
How much does it rain in Chillán Viejo in December?
When are the longest days in Chillán Viejo?
How many hours of daylight does Chillán Viejo have in December?
What time are sunrise and sunset in December in Chillán Viejo?
How long on average sun shines in December in Chillán Viejo?
How high is the UV index in December in Chillán Viejo?
Average temperature in December
Chillán Viejo, Chile
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is January (30.9°C).
The month with the lowest average high temperature is July (12.4°C).
- Average low temperature in December: 11.2°C
The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.7°C).
Average pressure in December
Chillán Viejo, Chile
- Average pressure in December: 1014.9mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in December
Chillán Viejo, Chile
- Average wind speed in December: 11.8km/h
The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).
Average humidity in December
Chillán Viejo, Chile
- Average humidity in December: 56%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (50%).
Average rainfall in December
Chillán Viejo, Chile
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is June (178mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days in December
Chillán Viejo, Chile
- Average rainfall days in December: 3.4 days
The months with the highest number of rainy days are July and August (13.7 days).
The month with the least rainy days is January (1.8 days).
Average daylight in December /
Average sunshine in December
Chillán Viejo, Chile
- Average daylight in December: 14h and 4min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in December: 10h and 5min
The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).
Average sunshine days in December
Chillán Viejo, Chile
- Average sunshine days in December: 27.2 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is July (16.5 days).
Average UV index in December
Chillán Viejo, Chile
- Average UV index in December: 5
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are May, June, July and September (UV index 3).
Average cloud cover in December
Chillán Viejo, Chile
- Average cloud cover in December: 13
The months with the most cloud cover are June, July and August (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 8).
Average visibility in December
Chillán Viejo, Chile
- 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).
Chillán Viejo, Chile
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