December weather forecast
San Jose del Rincon, Argentina

December

Weather in December

December, the first month of the summer in San Jose del Rincon, is a tropical month, with an average temperature varying between 18.3°C (64.9°F) and 31.7°C (89.1°F).

Temperature

San Jose del Rincon's average high-temperature marks a hot 31.7°C (89.1°F) with the advent of December, closely mirroring that of the preceding month. December nights present a stark temperature decrease to an enjoyable 18.3°C (64.9°F).

Heat index

The heat index for December is estimated at a sweltering 35°C (95°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In December, the average relative humidity is 56%.

Rainfall

In San Jose del Rincon, in December, during 9.6 rainfall days, 69mm (2.72") of precipitation is typically accumulated. Throughout the year, in San Jose del Rincon, there are 105.9 rainfall days, and 576mm (22.68") of precipitation is accumulated.

Daylight

With an average of 14h and 12min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:49 and sunset at 19:53. On the last day of the month, sunrise is at 06:00 and sunset at 20:10 -03.

Sunshine

The month with the most sunshine in San Jose del Rincon is December, with an average of 11.1h of sunshine.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

Is it hot during December?
The average high-temperature and low-temperature during December are 31.7°C (89.1°F) and 18.3°C (64.9°F) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in December is estimated at 35°C (95°F).
What is the average humidity in December in San Jose del Rincon?
In December, the average relative humidity is 56%.
How much does it rain in December?
In San Jose del Rincon, in December, it is raining for 9.6 days, with typically 69mm (2.72") of accumulated precipitation.
When are the longest days?
With an average of 14h and 12min of daylight, December has the longest days of the year.
What is the average length of the day in December?
In San Jose del Rincon, the average day length in December is 14h and 10min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 05:49 and sunset at 19:53. On the last day of the month, sunrise is at 06:00 and sunset at 20:10 -03.
What month has the most sunshine?
December has the most sunshine of the year, with an average of 11.1h of sunshine.
How long on average sun shines in December in San Jose del Rincon?
In San Jose del Rincon, Argentina, the average sunshine duration in December is 11.1h.
What is the month with the highest UV index?
The months with the highest UV index in San Jose del Rincon are January and December, with an average maximum UV index of 7.
What is the UV index intensity in December?
The average daily maximum UV index in December is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
San Jose del Rincon, Argentina
  • Average high temperature in December: 31.7°C

The warmest month (with the highest average high temperature) is January (33.5°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in December: 18.3°C

The month with the highest average low temperature is January (20.5°C).
The coldest month (with the lowest average low temperature) is July (8.3°C).

Average pressure in December
San Jose del Rincon, Argentina
  • Average pressure in December: 1009.2mbar

The month with the highest atmospheric pressure is July (1018.6mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in December
San Jose del Rincon, Argentina
  • Average wind speed in December: 12.2km/h

The windiest month (with the highest average wind speed) is September (14.8km/h).
The calmest month (with the lowest average wind speed) is March (11.3km/h).

Average humidity in December
San Jose del Rincon, Argentina
  • Average humidity in December: 56%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is January (51%).

Average rainfall in December
San Jose del Rincon, Argentina
  • Average rainfall in December: 69mm

The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is June (24mm).

Average rainfall days in December
San Jose del Rincon, Argentina
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is October (10.9 days).
The month with the least rainy days is July (6.9 days).

Average daylight in December /
Average sunshine in December
San Jose del Rincon, Argentina
  • Average daylight in December: 14h and 1min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in December: 11h and 1min

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 18min).

Average sunshine days in December
San Jose del Rincon, Argentina
  • Average sunshine days in December: 20 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (18 days).

Average UV index in December
San Jose del Rincon, Argentina
  • Average UV index in December: 7

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

Average cloud cover in December
San Jose del Rincon, 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 18).

Average visibility in December
San Jose del Rincon, Argentina
  • Average visibility in December: 10km

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

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