Tres Arroyos
Argentina
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Tres Arroyos, Argentina

December, the first month of the summer, in Tres Arroyos, is still a warm month, with average temperature fluctuating between 14.1°C (57.4°F) and 28°C (82.4°F).

Temperature

In December, the average high-temperature rises, from a moderately hot 23°C (73.4°F) in November, to a still warm 28°C (82.4°F). The average low-temperature, in Tres Arroyos, is 14.1°C (57.4°F).

Heat index

In December, the average heat index is evaluated at 28.7°C (83.7°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like pregnancy, clothing, metabolic differences, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Tres Arroyos, the average relative humidity is 53%.

Rainfall

In Tres Arroyos, during December, the rain falls for 8.4 days and regularly aggregates up to 37mm (1.46") of precipitation. In Tres Arroyos, during the entire year, the rain falls for 105.6 days and collects up to 399mm (15.71") of precipitation.

Snowfall

January through July, October through December are months without snowfall.

Daylight

December has the longest days of the year, with an average of 14.8h of daylight.

Sunshine

December has the most sunshine of the year, with an average of 11.3h of sunshine.

UV index

January, February 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 threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 6 in December transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Tres Arroyos?

In Tres Arroyos, Argentina, in December, the average high-temperature is 28°C (82.4°F), and the average low-temperature is 14.1°C (57.4°F). In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), that calculates temperature value influenced by the moisture in the air, is estimated at 28.7°C (83.7°F).

What is the average humidity in December in Tres Arroyos?

In December, the average relative humidity in Tres Arroyos is 53%.

How many days does it rain in December in Tres Arroyos?

In Tres Arroyos, during December, the rain falls for 8.4 days and regularly aggregates up to 37mm (1.46") of precipitation.

When it does not snow in Tres Arroyos?

January through July, October through December are months without snowfall in Tres Arroyos.

When are the longest days in Tres Arroyos?

With an average of 14.8h of daylight, December has the longest days of the year.

What is the average length of the day in December in Tres Arroyos?

In Tres Arroyos, Argentina, the average length of the day in December is 14.8h.

What month has the most sunshine in Tres Arroyos?

The month with the most sunshine is December, with an average of 11.3h of sunshine.

How many hours of sunshine does Tres Arroyos have in December?

In December, the average sunshine is 11.3h.

What are the months with the highest UV index in Tres Arroyos?

January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Tres Arroyos.

What is the UV index reading in December in Tres Arroyos?

In Tres Arroyos, 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 the exposure to the Sun's UV rays.
Average temperature in December - Tres Arroyos, Argentina
  • Average high temperature in December: 28°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 (12°C).

  • Average low temperature in December: 14.1°C

The month with the highest average low temperature is January (15.9°C).
The coldest month (with the lowest average low temperature) is July (4.6°C).

Average humidity in December - Tres Arroyos, Argentina
  • Average humidity in December: 53%

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

Average rainfall in December - Tres Arroyos, Argentina
  • Average rainfall in December: 37mm

The wettest month (with the highest rainfall) is November (60mm).
The driest month (with the lowest rainfall) is August (19mm).

Average rainfall days in December - Tres Arroyos, Argentina
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is October (11.7 days).
The month with the lowest number of rainy days is August (6.7 days).

Average snowfall days in December - Tres Arroyos, Argentina
  • Average snowfall days in December: 0 days

Months with the highest number of snowfall days are August and September (0.2 days).
Months with the lowest number of snowfall days are January, February, March, April, May, June, July, October, November and December (0 days).

Average daylight in December / Average sunshine in December - Tres Arroyos, Argentina
  • Average daylight in December: 14.8h

The month with the longest days is December (Average daylight: 14.8h).
The month with shortest days is June (Average daylight: 9.5h).

  • Average sunshine in December: 11.3h

The month with most sunshine is December (Average sunshine: 11.3h).
The month with least sunshine is June (Average sunshine: 6h).

Average UV index in December - Tres Arroyos, Argentina
  • Average UV index in December: 6

Months with the highest UV index are January, February and December (UV index 6).
Months with the lowest UV index are May, June, July, August and September (UV index 3).