December weather forecastBernal, Argentina

December

Weather in December

The first month of the summer, December, is still a warm month in Bernal, Argentina, with an average temperature varying between 27.4°C (81.3°F) and 18.5°C (65.3°F).

Temperature

The start of December brings a subtle rise in the average high-temperature, moving from 23.6°C (74.5°F) in November to a still moderately hot 27.4°C (81.3°F). During the month of December, Bernal anticipates a mean low-temperature of 18.5°C (65.3°F).

Heat index

During December, the heat index is computed to be 29°C (84.2°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.

Humidity

The average relative humidity in December in Bernal is 61%.

Rainfall

In Bernal, in December, during 7.2 rainfall days, 21mm (0.83") of precipitation is typically accumulated. Throughout the year, in Bernal, there are 83.4 rainfall days, and 197mm (7.76") of precipitation is accumulated.

Daylight

With an average of 14h and 24min of daylight, December has the longest days of the year in Bernal.
On the first day of December, sunrise is at 05:32 and sunset at 19:51. On the last day of the month, sunrise is at 05:43 and sunset at 20:09 -03.

Sunshine

The month with the most sunshine in Bernal, Argentina, is December, with an average of 11.2h of sunshine.

UV index

The months with the highest UV index in Bernal, Argentina, are January through March, November and December, with an average maximum UV index of 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 high UV index of 6 in December translates into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

The high-temperature in Bernal during December is 27.4°C (81.3°F) and the low-temperature is 18.5°C (65.3°F). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in December is computed to be 29°C (84.2°F).

The average relative humidity in December in Bernal is 61%.

In December, in Bernal, Argentina, the rain falls for 7.2 days. Throughout December, 21mm (0.83") of precipitation is accumulated.

With an average of 14h and 24min of daylight, December has the longest days of the year in Bernal.

The average day length in December in Bernal, Argentina, is 14h and 26min.

On the first day of December in Bernal, sunrise is at 05:32 and sunset at 19:51. On the last day of the month, sunrise is at 05:43 and sunset at 20:09 -03.

The month with the most sunshine in Bernal is December, with an average of 11.2h of sunshine.

In Bernal, the average sunshine duration in December is 11.2h.

The months with the highest UV index in Bernal are January through March, November and December, with an average maximum UV index of 6.

The average daily maximum UV index in December in Bernal is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bernal, Argentina

  • Average high temperature in December: 27.4°C

The warmest month (with the highest average high temperature) is January (29°C).
The month with the lowest average high temperature is July (13.3°C).

  • Average low temperature in December: 18.5°C

The month with the highest average low temperature is January (20.7°C).
The coldest month (with the lowest average low temperature) is July (8.4°C).

Average pressure in December
Bernal, Argentina

  • Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in December
Bernal, Argentina

  • Average wind speed in December: 15.4km/h

The windiest month (with the highest average wind speed) is September (17.9km/h).
The calmest month (with the lowest average wind speed) is March (15.2km/h).

Average humidity in December
Bernal, Argentina

  • Average humidity in December: 61%

The months with the highest relative humidity are May and July (76%).
The month with the lowest relative humidity is January (60%).

Average rainfall in December
Bernal, Argentina

  • Average rainfall in December: 21mm

The wettest month (with the highest rainfall) is October (26mm).
The driest month (with the least rainfall) is May (9mm).

Average rainfall days in December
Bernal, Argentina

  • Average rainfall days in December: 7.2 days

The months with the highest number of rainy days are March and April (8.2 days).
The month with the least rainy days is August (5.8 days).

Average daylight in December /
Average sunshine in December
Bernal, 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: 6h and 0min).

Average sunshine days in December
Bernal, Argentina

  • Average sunshine days in December: 21.4 days

The month with the most sunshine days is August (23.1 days).
The month with the least sunshine days is February (19.5 days).

Average UV index in December
Bernal, 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
Bernal, 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
Bernal, 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).