December weather forecastAlvarez, Argentina

December

Weather in December

The first month of the summer, December, is a hot month in Alvarez, Argentina, with an average temperature varying between 31.7°C (89.1°F) and 17.5°C (63.5°F).

Temperature

Alvarez's weather shows a minor temperature rise with the arrival of December, moving from a warm 28.5°C (83.3°F) in November to a hot 31.7°C (89.1°F). Alvarez endures a clear shift from daytime heat to a mean low-temperature of 17.5°C (63.5°F) during December nights.

Heat index

For most parts of December, the heat index is computed to be a torrid 35°C (95°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
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 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In December, the average relative humidity in Alvarez is 54%.

Rainfall

December is the month with the most rainfall in Alvarez, Argentina. Rain falls for 9.1 days and accumulates 72mm (2.83") of precipitation.

Daylight

With an average of 14h and 18min of daylight, December has the longest days of the year in Alvarez, Argentina.
On the first day of December in Alvarez, sunrise is at 05:46 and sunset at 19:58. On the last day of the month, sunrise is at 05:57 and sunset at 20:15 -03.

Sunshine

December has the most sunshine of the year in Alvarez, with an average of 11.1h of sunshine.

UV index

The average daily maximum UV index in December is 6. 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: The daily maximum UV index of 6 in December interprets into the following advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Alvarez during December is 31.7°C (89.1°F) and the low-temperature is 17.5°C (63.5°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 35°C (95°F).

In Alvarez, the average relative humidity in December is 54%.

The month with the most rainfall in Alvarez, Argentina, is December, when the rain falls for 9.1 days and typically aggregates up to 72mm (2.83") of precipitation.

In Alvarez, in December, during 9.1 rainfall days, 72mm (2.83") of precipitation is typically accumulated.

The month with the longest days in Alvarez is December, with an average of 14h and 18min of daylight.

In December, the average day length in Alvarez, Argentina, is 14h and 18min.

In December, on the first day of the month, sunrise is at 05:46 and sunset at 19:58. On the last day of the month, in Alvarez, Argentina, sunrise is at 05:57 and sunset at 20:15 -03.

With an average of 11.1h of sunshine, December has the most sunshine of the year in Alvarez.

In Alvarez, Argentina, the average sunshine duration in December is 11.1h.

In Alvarez, Argentina, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.5°C

31.7°C

33.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.9km/h

11.8km/h

11.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

20.1

20.7

22.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Alvarez, Argentina

Average high temperature in December: 31.7°C

The warmest month (with the highest average high temperature) is January (33.4°C).
The month with the lowest average high temperature is July (15.7°C).

Average low temperature in December: 17.5°C

The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (7.5°C).

Average pressure in December
Alvarez, Argentina

Average pressure in December: 1009.6mbar

The month with the highest atmospheric pressure is July (1019mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).

Average wind speed in December
Alvarez, Argentina

Average wind speed in December: 10.9km/h

The windiest months (with the highest average wind speed) are August and September (13km/h).
The calmest month (with the lowest average wind speed) is March (10.2km/h).

Average humidity in December
Alvarez, Argentina

Average humidity in December: 54%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is January (52%).

Average rainfall in December
Alvarez, Argentina

Average rainfall in December: 72mm

The wettest month (with the highest rainfall) is December (72mm).
The driest month (with the least rainfall) is June (16mm).

Average rainfall days in December
Alvarez, Argentina

Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is October (10 days).
The month with the least rainy days is June (4.8 days).

Average daylight in December /
Average sunshine in December
Alvarez, Argentina

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: 11h and 6min

The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is May (Average sunshine: 7h and 24min).

Average sunshine days in December
Alvarez, Argentina

Average sunshine days in December: 20.7 days

The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is October (19.7 days).

Average UV index in December
Alvarez, Argentina

Average UV index in December: 6

The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).

Average cloud cover in December
Alvarez, Argentina

Average cloud cover in December: 19

The month with the most cloud cover is May (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 17).

Average visibility in December
Alvarez, Argentina

Average visibility in December: 10km

The months with the highest visibility are January, February, March, June and December (10km).
The months with the lowest visibility are April, May, July, August, September, October and November (9km).