December weather forecastCerro Chato, Uruguay

December

Weather in December

December, the first month of the summer in Cerro Chato, is still a warm month, with an average temperature ranging between min 15.3°C (59.5°F) and max 28.2°C (82.8°F).

Temperature

With the onset of December, Cerro Chato's average high-temperature experiences a slight rise, moving from November's warm 25.2°C (77.4°F) to a still moderately hot 28.2°C (82.8°F). Cerro Chato logs a considerable temperature decrease from the daytime highs during the nights in December, with an average reading of 15.3°C (59.5°F).

Heat index

The heat index for December is estimated at a hot 31°C (87.8°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In Cerro Chato, the average relative humidity in December is 70%.

Rainfall

In Cerro Chato, in December, it is raining for 11.3 days, with typically 63mm (2.48") of accumulated precipitation. Throughout the year, there are 139.1 rainfall days, and 799mm (31.46") of precipitation is accumulated.

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 05:24 and sunset at 19:35. On the last day of the month, sunrise is at 05:34 and sunset at 19:52 -03.

Sunshine

The month with the most sunshine is December, with an average of 10.3h 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 value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 6 during December translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Cerro Chato, the average high-temperature is 28.2°C (82.8°F), and the average low-temperature is 15.3°C (59.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in December is estimated at 31°C (87.8°F).

In December, the average relative humidity is 70%.

In Cerro Chato, in December, it is raining for 11.3 days, with typically 63mm (2.48") of accumulated precipitation.

With an average of 14h and 18min of daylight, December has the longest days of the year.

In Cerro Chato, the average day length in December is 14h and 18min.

In December, on the first day of the month, sunrise is at 05:24 and sunset at 19:35. On the last day of the month, sunrise is at 05:34 and sunset at 19:52 -03.

December has the most sunshine of the year, with an average of 10.3h of sunshine.

In December, the average sunshine duration is 10.3h.

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

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

25.2°C

28.2°C

29.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.8km/h

15.7km/h

15.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

17.5

15.9

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Cerro Chato, Uruguay

Average high temperature in December: 28.2°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 (15.3°C).

Average low temperature in December: 15.3°C

The month with the highest average low temperature is February (17.5°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).

Average pressure in December
Cerro Chato, Uruguay

Average pressure in December: 1011.4mbar

The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).

Average wind speed in December
Cerro Chato, Uruguay

Average wind speed in December: 14.4km/h

The windiest months (with the highest average wind speed) are September and October (15.4km/h).
The calmest month (with the lowest average wind speed) is May (12.6km/h).

Average humidity in December
Cerro Chato, Uruguay

Average humidity in December: 70%

The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is January (68%).

Average rainfall in December
Cerro Chato, Uruguay

Average rainfall in December: 63mm

The wettest month (with the highest rainfall) is October (99mm).
The driest months (with the least rainfall) are March and April (44mm).

Average rainfall days in December
Cerro Chato, Uruguay

Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is January (13.2 days).
The month with the least rainy days is June (9.6 days).

Average daylight in December /
Average sunshine in December
Cerro Chato, Uruguay

Average daylight in December: 14h and 18min

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 18min

The month with the most sunshine is December (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 5h and 36min).

Average sunshine days in December
Cerro Chato, Uruguay

Average sunshine days in December: 17.5 days

The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is February (13.6 days).

Average UV index in December
Cerro Chato, 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
Cerro Chato, Uruguay

Average cloud cover in December: 28

The month with the most cloud cover is September (Cloud cover 42).
The month with the least cloud cover is December (Cloud cover 28).

Average visibility in December
Cerro Chato, 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).