December weather forecastCerro Viejo, Chile
December weather for Cerro Viejo, Chile: The first month of the summer, December, is still a warm month in Cerro Viejo, Chile, with an average temperature ranging between max 27.8°C (82°F) and min 12.3°C (54.1°F). December has the longest days of the year in Cerro Viejo, Chile, with an average of 14h and 18min of daylight.
December
Weather in December
The first month of the summer, December, is still a warm month in Cerro Viejo, Chile, with an average temperature ranging between max 27.8°C (82°F) and min 12.3°C (54.1°F).Temperature
Transitioning from November to December, Cerro Viejo observes an average high-temperature of a still moderately hot 27.8°C (82°F), differing subtly from the previous month. A marked difference from the daytime temperatures, Cerro Viejo's nighttime temperature falls to an average low of 12.3°C (54.1°F) in December.Heat index
The heat index in December is appraised at 29°C (84.2°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Heat index determinations are made taking into account the shade and light air movements. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In December, the average relative humidity is 55%.Rainfall
In Cerro Viejo, during December, the rain falls for 1.3 days and regularly aggregates up to 4mm (0.16") of precipitation. Throughout the year, in Cerro Viejo, there are 42.3 rainfall days, and 215mm (8.46") of precipitation is accumulated.Daylight
With an average of 14h and 18min of daylight, December has the longest days of the year in Cerro Viejo.On the first day of December, sunrise is at 06:28 and sunset at 20:39. On the last day of the month, sunrise is at 06:38 and sunset at 20:57 -03.
Sunshine
In December, the average sunshine in Cerro Viejo is 9.8h.UV index
January, February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during December translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cerro Viejo, Chile
- Average high temperature in December: 27.8°C
The warmest month (with the highest average high temperature) is January (29.3°C).
The month with the lowest average high temperature is July (15.8°C).
- Average low temperature in December: 12.3°C
The month with the highest average low temperature is January (13.9°C).
The coldest month (with the lowest average low temperature) is July (5.9°C).
Average pressure in December
Cerro Viejo, Chile
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is February (1014.5mbar).
Average wind speed in December
Cerro Viejo, Chile
- Average wind speed in December: 8.2km/h
The windiest month (with the highest average wind speed) is December (8.2km/h).
The calmest month (with the lowest average wind speed) is May (5.8km/h).
Average humidity in December
Cerro Viejo, Chile
- Average humidity in December: 55%
The months with the highest relative humidity are July and August (67%).
The months with the lowest relative humidity are January, March and April (54%).
Average rainfall in December
Cerro Viejo, Chile
- Average rainfall in December: 4mm
The wettest month (with the highest rainfall) is June (71mm).
The driest months (with the least rainfall) are February and March (1mm).
Average rainfall days in December
Cerro Viejo, Chile
- Average rainfall days in December: 1.3 days
The month with the highest number of rainy days is June (7.1 days).
The month with the least rainy days is February (0.9 days).
Average daylight in December /
Average sunshine in December
Cerro Viejo, Chile
- Average daylight in December: 14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 9h and 48min
The month with the most sunshine is February (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 8h and 6min).
Average sunshine days in December
Cerro Viejo, Chile
- Average sunshine days in December: 29 days
The month with the most sunshine days is March (29.8 days).
The month with the least sunshine days is June (22.2 days).
Average UV index in December
Cerro Viejo, Chile
- Average UV index in December: 6
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Cerro Viejo, Chile
- Average cloud cover in December: 7
The month with the most cloud cover is June (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 5).
Average visibility in December
Cerro Viejo, Chile
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (10km).
The months with the lowest visibility are August and September (9km).
