December weather forecastLas Rosas, Chile
December
Weather in December
December, the first month of the summer in Las Rosas, is also a moderately hot month, with an average temperature ranging between max 27.8°C (82°F) and min 12.3°C (54.1°F).Temperature
The onset of December brings with it an average high-temperature of a still warm 27.8°C (82°F), showing a negligible variation from the month before. In Las Rosas, December nights witness a remarkable decline from the day's zenith to a cool 12.3°C (54.1°F).Heat index
Throughout December, the heat index is appraised at 29°C (84.2°F). With extended exposure and activity, one might feel exhausted and experience heat cramps.Consider that heat index readings are for situations in the shade and light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The average relative humidity in December is 55%.Rainfall
In Las Rosas, in December, it is raining for 1.3 days, with typically 4mm (0.16") of accumulated precipitation. In Las Rosas, during the entire year, the rain falls for 42.3 days and collects up to 215mm (8.46") of precipitation.Daylight
The month with the longest days in Las Rosas is December, with an average of 14h and 18min of daylight.On the first day of December, sunrise is at 06:27 and sunset at 20:40. On the last day of the month, sunrise is at 06:38 and sunset at 20:57 -03.
Sunshine
The average sunshine in December in Las Rosas, Chile, 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 estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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
Las Rosas, 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).





