December weather forecastChacabuco, Argentina
December
Weather in December
December, the first month of the summer in Chacabuco, is a hot month, with an average temperature ranging between min 16.1°C (61°F) and max 30.3°C (86.5°F).Temperature
As December arrives, Chacabuco's weather shows a minor increase in high-temperatures, edging from November's moderately hot 26.6°C (79.9°F) to a tropical 30.3°C (86.5°F). Chacabuco measures a considerable dip from daytime highs with an average low-temperature of 16.1°C (61°F) during December.Heat index
The average heat index in December is evaluated at a hot 32°C (89.6°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. 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 children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In December, the average relative humidity in Chacabuco is 54%.Rainfall
December is the month with the most rainfall in Chacabuco. Rain falls for 9 days and accumulates 66mm (2.6") of precipitation.Snowfall
January through June, August through December are months without snowfall in Chacabuco.Daylight
The month with the longest days in Chacabuco is December, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 05:41 and sunset at 20:00. On the last day of December, sunrise is at 05:52 and sunset at 20:18 -03.
Sunshine
The month with the most sunshine is December, with an average of 11.1h of sunshine.UV index
The months with the highest UV index are January, February and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 6 in December leads to these recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chacabuco, Argentina
- Average high temperature in December: 30.3°C
The warmest month (with the highest average high temperature) is January (32.3°C).
The month with the lowest average high temperature is July (14.3°C).
- Average low temperature in December: 16.1°C
The month with the highest average low temperature is January (17.2°C).
The coldest month (with the lowest average low temperature) is July (6°C).
Average pressure in December
Chacabuco, Argentina
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).
Average wind speed in December
Chacabuco, Argentina
- Average wind speed in December: 12.5km/h
The windiest months (with the highest average wind speed) are August and September (14.5km/h).
The calmest month (with the lowest average wind speed) is February (11.7km/h).
Average humidity in December
Chacabuco, Argentina
- Average humidity in December: 54%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (53%).
Average rainfall in December
Chacabuco, Argentina
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is July (18mm).
Average rainfall days in December
Chacabuco, Argentina
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is October (11.1 days).
The month with the least rainy days is June (5.3 days).
Average snowfall days in December
Chacabuco, Argentina
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Chacabuco, Argentina
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 11h and 6min
The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is June (Average sunshine: 7h and 0min).
Average sunshine days in December
Chacabuco, Argentina
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is August (23.7 days).
The month with the least sunshine days is October (18.1 days).
Average UV index in December
Chacabuco, Argentina
- 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 May, June and July (UV index 3).
Average cloud cover in December
Chacabuco, Argentina
- Average cloud cover in December: 19
The month with the most cloud cover is May (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in December
Chacabuco, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, June, August, September and December (10km).
The months with the lowest visibility are March, April, May, July, October and November (9km).





