December weather forecast
Monteros, Argentina

December

Weather in December

December, the first month of the summer in Monteros, is still a warm month, with an average temperature fluctuating between 18.3°C (64.9°F) and 29.6°C (85.3°F).

Temperature

As Monteros transitions into December, the average high-temperature stands at a still warm 29.6°C (85.3°F), offering little variation from the preceding month. Monteros experiences a mean temperature of 18.3°C (64.9°F) during December nights.

Heat index

The heat index value during December is estimated at a hot 33°C (91.4°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

In Monteros, the average relative humidity in December is 64%.

Rainfall

In December, in Monteros, Argentina, the rain falls for 19.5 days. Throughout December, 122mm (4.8") of precipitation is accumulated. In Monteros, during the entire year, the rain falls for 159.5 days and collects up to 702mm (27.64") of precipitation.

Snowfall

In Monteros, snow does not fall in January through June, August through December.

Daylight

The month with the longest days is December, with an average of 13h and 48min of daylight.
On the first day of December in Monteros, sunrise is at 06:19 and sunset at 20:03. On the last day of the month, sunrise is at 06:30 and sunset at 20:19 -03.

Sunshine

The average sunshine in December is 9h.

UV index

January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 6 during December leads to these advisories:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How hot is December in Monteros?
In December, the average high-temperature and low-temperature are 29.6°C (85.3°F) and 18.3°C (64.9°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in December is estimated at 33°C (91.4°F).
What is the average humidity in December in Monteros?
In December, the average relative humidity in Monteros, Argentina, is 64%.
How many days does it rain in December in Monteros?
In Monteros, in December, it is raining for 19.5 days, with typically 122mm (4.8") of accumulated precipitation.
When it does not snow in Monteros?
January through June, August through December are months without snowfall.
When are the longest days in Monteros?
With an average of 13h and 48min of daylight, December has the longest days of the year in Monteros, Argentina.
How many hours of daylight does Monteros have in December?
The average day length in December in Monteros is 13h and 49min.
What time are sunrise and sunset in December in Monteros?
On the first day of December in Monteros, Argentina, sunrise is at 06:19 and sunset at 20:03. On the last day of the month, sunrise is at 06:30 and sunset at 20:19 -03.
How many hours of sunshine does Monteros have in December?
In December, the average sunshine duration is 9h.
What is the month with the highest UV index in Monteros?
January through March, October through December, with an average maximum UV index of 6, are months with the highest UV index in Monteros.
How high is the UV index in December in Monteros?
The average daily maximum UV index in December in Monteros is 6. A UV Index of 6 to 7 symbolizes a high health risk 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 snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Monteros, Argentina
Average temperature in December
Monteros, Argentina
  • Average high temperature in December: 29.6°C

The warmest month (with the highest average high temperature) is January (29.8°C).
The month with the lowest average high temperature is July (16.8°C).

  • Average low temperature in December: 18.3°C

The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).

Average pressure in December - Monteros, Argentina
Average pressure in December
Monteros, Argentina
  • Average pressure in December: 1008.8mbar

The month with the highest atmospheric pressure is July (1016.3mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).

Average wind speed in December - Monteros, Argentina
Average wind speed in December
Monteros, Argentina
  • Average wind speed in December: 7.4km/h

The windiest month (with the highest average wind speed) is October (8.6km/h).
The calmest month (with the lowest average wind speed) is June (6.3km/h).

Average humidity in December - Monteros, Argentina
Average humidity in December
Monteros, Argentina
  • Average humidity in December: 64%

The month with the highest relative humidity is April (79%).
The month with the lowest relative humidity is August (51%).

Average rainfall in December - Monteros, Argentina
Average rainfall in December
Monteros, Argentina
  • Average rainfall in December: 122mm

The wettest month (with the highest rainfall) is January (132mm).
The driest month (with the least rainfall) is August (4mm).

Average rainfall days in December - Monteros, Argentina
Average rainfall days in December
Monteros, Argentina
  • Average rainfall days in December: 19.5 days

The month with the highest number of rainy days is January (21.3 days).
The month with the least rainy days is August (2.6 days).

Average snowfall in December - Monteros, Argentina
Average snowfall in December
Monteros, Argentina
  • Average snowfall in December: 0mm

The month with the highest snowfall is July (2mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).

Average snowfall days in December - Monteros, Argentina
Average snowfall days in December
Monteros, Argentina
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is July (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).

Average daylight in December / Average sunshine in December - Monteros, Argentina
Average daylight in December /
Average sunshine in December
Monteros, Argentina
  • Average daylight in December: 13h and 5min

The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).

  • Average sunshine in December: 9h and 0min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is April (Average sunshine: 8h and 24min).

Average sunshine days in December - Monteros, Argentina
Average sunshine days in December
Monteros, Argentina
  • Average sunshine days in December: 6.8 days

The month with the most sunshine days is August (25.3 days).
The months with the least sunshine days are January and February (5.2 days).

Average UV index in December - Monteros, Argentina
Average UV index in December
Monteros, Argentina
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).

Average cloud cover in December - Monteros, Argentina
Average cloud cover in December
Monteros, Argentina
  • Average cloud cover in December: 26

The months with the most cloud cover are March and April (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 8).

Average visibility in December - Monteros, Argentina
Average visibility in December
Monteros, Argentina
  • Average visibility in December: 10km

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

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