December weather forecast
Monte Castro, Argentina

December

Weather in December

December, the first month of the summer in Monte Castro, is still a warm month, with an average temperature varying between 18.5°C (65.3°F) and 28.8°C (83.8°F).

Temperature

A minor escalation in the average high-temperature is seen with the onset of December, moving from 24.7°C (76.5°F) in November to a still moderately hot 28.8°C (83.8°F). The average temperature in Monte Castro during December nights dips to a comfortable 18.5°C (65.3°F).

Heat index

The heat index value for December is estimated at a hot 31°C (87.8°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In Monte Castro, the average relative humidity in December is 59%.

Rainfall

In December, in Monte Castro, the rain falls for 8.6 days. Throughout December, 62mm (2.44") of precipitation is accumulated. Throughout the year, there are 100.3 rainfall days, and 586mm (23.07") 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 the month, sunrise is at 05:34 and sunset at 19:52. On the last day of December, sunrise is at 05:44 and sunset at 20:10 -03.

Sunshine

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

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

How hot does it get in Monte Castro in December?
The high-temperature, in December, in Monte Castro, is 28.8°C (83.8°F), while the low-temperature averages to 18.5°C (65.3°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 31°C (87.8°F).
What is the average humidity in December in Monte Castro?
The average relative humidity in December in Monte Castro, Argentina, is 59%.
How many days does it rain in December in Monte Castro?
In December, in Monte Castro, the rain falls for 8.6 days. Throughout December, 62mm (2.44") of precipitation is accumulated.
When are the longest days in Monte Castro?
With an average of 14h and 24min of daylight, December has the longest days of the year in Monte Castro, Argentina.
How many hours of daylight does Monte Castro have in December?
The average day length in December in Monte Castro, Argentina, is 14h and 26min.
What time are sunrise and sunset in December in Monte Castro?
On the first day of December in Monte Castro, 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 20:10 -03.
What month has the most sunshine in Monte Castro?
December has the most sunshine of the year in Monte Castro, with an average of 11.2h of sunshine.
How long on average sun shines in December in Monte Castro?
The average sunshine duration in December in Monte Castro, Argentina, is 11.2h.
When is the highest UV index in Monte Castro?
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Monte Castro.
What is the UV index intensity in December in Monte Castro?
In Monte Castro, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Monte Castro, Argentina
Average temperature in December
Monte Castro, Argentina
  • Average high temperature in December: 28.8°C

The warmest month (with the highest average high temperature) is January (30.3°C).
The month with the lowest average high temperature is July (13.8°C).

  • Average low temperature in December: 18.5°C

The month with the highest average low temperature is January (20.2°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).

Average pressure in December - Monte Castro, Argentina
Average pressure in December
Monte Castro, 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 - Monte Castro, Argentina
Average wind speed in December
Monte Castro, Argentina
  • Average wind speed in December: 14km/h

The windiest month (with the highest average wind speed) is September (16.4km/h).
The calmest month (with the lowest average wind speed) is March (13.8km/h).

Average humidity in December - Monte Castro, Argentina
Average humidity in December
Monte Castro, Argentina
  • Average humidity in December: 59%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is January (57%).

Average rainfall in December - Monte Castro, Argentina
Average rainfall in December
Monte Castro, Argentina
  • Average rainfall in December: 62mm

The wettest month (with the highest rainfall) is November (70mm).
The driest month (with the least rainfall) is September (36mm).

Average rainfall days in December - Monte Castro, Argentina
Average rainfall days in December
Monte Castro, Argentina
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is August (5.8 days).

Average daylight in December / Average sunshine in December - Monte Castro, Argentina
Average daylight in December /
Average sunshine in December
Monte Castro, Argentina
  • Average daylight in December: 14h and 2min

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 1min

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 - Monte Castro, Argentina
Average sunshine days in December
Monte Castro, Argentina
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is August (24.1 days).
The month with the least sunshine days is February (18.3 days).

Average UV index in December - Monte Castro, Argentina
Average UV index in December
Monte Castro, 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 - Monte Castro, Argentina
Average cloud cover in December
Monte Castro, Argentina
  • Average cloud cover in December: 18

The month with the most cloud cover is July (Cloud cover 36).
The month with the least cloud cover is January (Cloud cover 16).

Average visibility in December - Monte Castro, Argentina
Average visibility in December
Monte Castro, 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).

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