December weather forecastBolivar, Uruguay

December

Weather in December

December, the first month of the summer in Bolivar, is a moderately hot month, with an average temperature fluctuating between 17.8°C (64°F) and 25.2°C (77.4°F).

Temperature

Bolivar, Uruguay, in December experiences a slight uptick in the average high-temperature, adjusting from November's agreeable 22°C (71.6°F) to a warm 25.2°C (77.4°F). In December, Bolivar reports a consistent average low-temperature of 17.8°C (64°F) during the nights.

Humidity

In Bolivar, the average relative humidity in December is 68%.

Rainfall

In Bolivar, Uruguay, in December, it is raining for 9.9 days, with typically 62mm (2.44") of accumulated precipitation. Throughout the year, there are 122.1 rainfall days, and 681mm (26.81") of precipitation is accumulated.

Daylight

The month with the longest days in Bolivar is December, with an average of 14h and 24min of daylight.
On the first day of December, sunrise is at 05:23 and sunset at 19:40. On the last day of the month, sunrise is at 05:34 and sunset at 19:58 -03.

Sunshine

January and December, with an average of 10.9h of sunshine, are months with the most sunshine.

UV index

January through March and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.

Frequently asked questions

The average high-temperature, in December, in Bolivar, is 25.2°C (77.4°F), while the average low-temperature is 17.8°C (64°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in January is estimated at 29°C (84.2°F).

In December, the average relative humidity is 68%.

In December, the rain falls for 9.9 days. Throughout December, 62mm (2.44") of precipitation is accumulated.

The month with the longest days is December, with an average of 14h and 24min of daylight.

In Bolivar, the average day length in December is 14h and 24min.

On the first day of December, sunrise is at 05:23 and sunset at 19:40. On the last day of the month, sunrise is at 05:34 and sunset at 19:58 -03.

January and December, with an average of 10.9h of sunshine, are months with the most sunshine.

The average sunshine duration in December is 10.9h.

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 reading of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.
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
Bolivar, Uruguay

  • Average high temperature in December: 25.2°C

The warmest month (with the highest average high temperature) is January (27.2°C).
The month with the lowest average high temperature is July (13.3°C).

  • Average low temperature in December: 17.8°C

The month with the highest average low temperature is January (20°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).

Average pressure in December
Bolivar, Uruguay

  • Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1018.8mbar).
The month with the lowest atmospheric pressure is December (1011.2mbar).

Average wind speed in December
Bolivar, Uruguay

  • Average wind speed in December: 17.4km/h

The windiest month (with the highest average wind speed) is September (19.6km/h).
The calmest month (with the lowest average wind speed) is May (17.2km/h).

Average humidity in December
Bolivar, Uruguay

  • Average humidity in December: 68%

The months with the highest relative humidity are July and September (79%).
The month with the lowest relative humidity is January (65%).

Average rainfall in December
Bolivar, Uruguay

  • Average rainfall in December: 62mm

The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is January (42mm).

Average rainfall days in December
Bolivar, Uruguay

  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is January (8.4 days).

Average daylight in December /
Average sunshine in December
Bolivar, Uruguay

  • 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: 10h and 54min

The months with the most sunshine are January and December (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 30min).

Average sunshine days in December
Bolivar, Uruguay

  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is September (16.5 days).

Average UV index in December
Bolivar, 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 July (UV index 3).

Average cloud cover in December
Bolivar, Uruguay

  • Average cloud cover in December: 22

The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).

Average visibility in December
Bolivar, Uruguay

  • 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).