December weather forecast
Plácido Rosas, Uruguay

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Plácido Rosas, Uruguay, with an average temperature fluctuating between 15.9°C (60.6°F) and 28.5°C (83.3°F).

Temperature

The advent of December signifies a minor shift to an average high-temperature of a still warm 28.5°C (83.3°F), aligning closely with November. Plácido Rosas's nighttime average of 15.9°C (60.6°F) during December reflects a substantial decrease from the daytime temperature.

Heat index

For December, the heat index is evaluated at a hot 32°C (89.6°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

The months with the lowest humidity are January and December, with an average relative humidity of 69%.

Rainfall

In December, the rain falls for 11.3 days. Throughout December, 65mm (2.56") of precipitation is accumulated. In Plácido Rosas, during the entire year, the rain falls for 136.4 days and collects up to 834mm (32.83") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 18min of daylight.
On the first day of December, sunrise is at 05:19 and sunset at 19:28. On the last day of the month, sunrise is at 05:30 and sunset at 19:46 -03.

Sunshine

The month with the most sunshine is December, with an average of 10.2h of sunshine.

UV index

The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

Is it hot during December?
The high-temperature, in December, in Plácido Rosas, is 28.5°C (83.3°F), while the low-temperature averages to 15.9°C (60.6°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in December is evaluated at 32°C (89.6°F).
What are the least humid months?
The months with the lowest humidity are January and December, with an average relative humidity of 69%.
What is the average humidity in December?
The average relative humidity in December is 69%.
How much does it rain in December?
In Plácido Rosas, during December, the rain falls for 11.3 days and regularly aggregates up to 65mm (2.56") of precipitation.
When are the longest days?
With an average of 14h and 18min of daylight, December has the longest days of the year.
How many hours of daylight does Plácido Rosas have in December?
The average day length in December is 14h and 16min.
What time are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 05:19 and sunset at 19:28. On the last day of the month, sunrise is at 05:30 and sunset at 19:46 -03.
What month has the most sunshine?
December has the most sunshine of the year, with an average of 10.2h of sunshine.
How long on average sun shines in December?
The average sunshine duration in December in Plácido Rosas is 10.2h.
What is the month with the highest UV index?
The months with the highest UV index are January through March and December, with an average maximum UV index of 6.
What is the UV index reading in December?
In Plácido Rosas, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents 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 - Plácido Rosas, Uruguay
Average temperature in December
Plácido Rosas, Uruguay
  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is January (30°C).
The month with the lowest average high temperature is July (15.8°C).

  • Average low temperature in December: 15.9°C

The months with the highest average low temperature are January and February (17.8°C).
The coldest month (with the lowest average low temperature) is July (7.3°C).

Average pressure in December - Plácido Rosas, Uruguay
Average pressure in December
Plácido Rosas, Uruguay
  • Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

Average wind speed in December - Plácido Rosas, Uruguay
Average wind speed in December
Plácido Rosas, Uruguay
  • Average wind speed in December: 14.3km/h

The windiest month (with the highest average wind speed) is October (15.6km/h).
The calmest month (with the lowest average wind speed) is May (12.7km/h).

Average humidity in December - Plácido Rosas, Uruguay
Average humidity in December
Plácido Rosas, Uruguay
  • Average humidity in December: 69%

The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are January and December (69%).

Average rainfall in December - Plácido Rosas, Uruguay
Average rainfall in December
Plácido Rosas, Uruguay
  • Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is January (96mm).
The driest month (with the least rainfall) is March (41mm).

Average rainfall days in December - Plácido Rosas, Uruguay
Average rainfall days in December
Plácido Rosas, Uruguay
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is January (14.4 days).
The month with the least rainy days is June (9.3 days).

Average daylight in December / Average sunshine in December - Plácido Rosas, Uruguay
Average daylight in December /
Average sunshine in December
Plácido Rosas, Uruguay
  • Average daylight in December: 14h and 2min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in December: 10h and 1min

The month with the most sunshine is December (Average sunshine: 10h and 12min).
The month with the least sunshine is May (Average sunshine: 5h and 36min).

Average sunshine days in December - Plácido Rosas, Uruguay
Average sunshine days in December
Plácido Rosas, Uruguay
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is July (19.3 days).
The month with the least sunshine days is February (14.4 days).

Average UV index in December - Plácido Rosas, Uruguay
Average UV index in December
Plácido Rosas, Uruguay
  • Average UV index in December: 6

The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is May (UV index 3).

Average cloud cover in December - Plácido Rosas, Uruguay
Average cloud cover in December
Plácido Rosas, Uruguay
  • Average cloud cover in December: 28

The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is December (Cloud cover 28).

Average visibility in December - Plácido Rosas, Uruguay
Average visibility in December
Plácido Rosas, Uruguay
  • Average visibility in December: 9km

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

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