December weather forecastRafael Castillo, Argentina

December

Weather in December

December, the first month of the summer in Rafael Castillo, is also a moderately hot month, with an average temperature ranging between min 18.5°C (65.3°F) and max 28.8°C (83.8°F).

Temperature

December witnesses a minor rise in the average high-temperature, transitioning from 24.7°C (76.5°F) in November to a still warm 28.8°C (83.8°F). Rafael Castillo observes an average nighttime low-temperature of 18.5°C (65.3°F) during the month of December.

Heat index

The average heat index in December is estimated at a hot 31°C (87.8°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The average relative humidity in December is 59%.

Rainfall

In December, the rain falls for 8.6 days. Throughout December, 62mm (2.44") of precipitation is accumulated. In Rafael Castillo, during the entire year, the rain falls for 100.3 days and collects up to 586mm (23.07") of precipitation.

Daylight

With an average of 14h and 24min of daylight, December has the longest days of the year in Rafael Castillo.
On the first day of December in Rafael Castillo, sunrise is at 05:34 and sunset at 19:53. On the last day of the month, sunrise is at 05:44 and sunset at 20:10 -03.

Sunshine

With an average of 11.2h of sunshine, December has the most sunshine of the year in Rafael Castillo.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in Rafael Castillo. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

The average high-temperature and low-temperature during December are 28.8°C (83.8°F) and 18.5°C (65.3°F) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in December is estimated at 31°C (87.8°F).

In December, the average relative humidity in Rafael Castillo, Argentina, is 59%.

In December, the rain falls for 8.6 days. Throughout December, 62mm (2.44") of precipitation is accumulated.

December has the longest days of the year in Rafael Castillo, with an average of 14h and 24min of daylight.

In Rafael Castillo, the average day length in December is 14h and 26min.

On the first day of December in Rafael Castillo, Argentina, sunrise is at 05:34 and sunset at 19:53. On the last day of the month, sunrise is at 05:44 and sunset at 20:10 -03.

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

The average sunshine duration in December in Rafael Castillo is 11.2h.

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

In Rafael Castillo, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health risk 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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: 5h and 54min).

Average sunshine days in December
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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
Rafael Castillo, 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).