December weather forecastOlivos, Argentina
December
Weather in December
The first month of the summer, December, is still a warm month in Olivos, Argentina, with temperature in the range of an average high of 27.3°C (81.1°F) and an average low of 18.9°C (66°F).Temperature
The onset of December marks a slight increase in the average high-temperature, moving from 23.6°C (74.5°F) in November to a still moderately hot 27.3°C (81.1°F). Olivos, during the nights of December, experiences an average temperature drop to a comfortable 18.9°C (66°F).Heat index
December's average heat index is evaluated at 29°C (84.2°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In December, the average relative humidity is 61%.Rainfall
In Olivos, in December, during 9.1 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, in Olivos, there are 100.8 rainfall days, and 618mm (24.33") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December, sunrise is at 05:34 and sunset at 19:52. On the last day of the month, sunrise is at 05:44 and sunset at 20:09 -03.
Sunshine
With an average of 11.2h of sunshine, December has the most sunshine of the year.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Olivos. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 6 in December transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Olivos, Argentina
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is January (29°C).
The month with the lowest average high temperature is July (13.4°C).
- Average low temperature in December: 18.9°C
The month with the highest average low temperature is January (20.9°C).
The coldest month (with the lowest average low temperature) is July (8.9°C).
Average pressure in December
Olivos, Argentina
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in December
Olivos, Argentina
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is September (18.1km/h).
The calmest month (with the lowest average wind speed) is December (15.4km/h).
Average humidity in December
Olivos, Argentina
- Average humidity in December: 61%
The months with the highest relative humidity are May and July (75%).
The month with the lowest relative humidity is January (60%).
Average rainfall in December
Olivos, Argentina
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is September (37mm).
Average rainfall days in December
Olivos, Argentina
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is April (9.3 days).
The month with the least rainy days is August (6.1 days).
Average daylight in December /
Average sunshine in December
Olivos, 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 12min
The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Olivos, Argentina
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is February (18.2 days).
Average UV index in December
Olivos, Argentina
- Average UV index in December: 6
The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
Olivos, Argentina
- Average cloud cover in December: 18
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 16).
Average visibility in December
Olivos, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





