December weather forecastBaltasar Brum, Uruguay

December

Weather in December

The first month of the summer, December, is a hot month in Baltasar Brum, Uruguay, with an average temperature varying between 18.7°C (65.7°F) and 30.7°C (87.3°F).

Temperature

The advent of December sees the average high-temperature at a tropical 30.7°C (87.3°F), subtly shifted from November's 28.3°C (82.9°F). A pronounced dip becomes evident during the nights in December as Baltasar Brum logs a consistent average temperature of 18.7°C (65.7°F).

Heat index

The heat index value for December is calculated to be a hot 34°C (93.2°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

January and December, with an average relative humidity of 61%, are the least humid months.

Rainfall

In December, the rain falls for 11.8 days. Throughout December, 98mm (3.86") of precipitation is accumulated. In Baltasar Brum, during the entire year, the rain falls for 132.8 days and collects up to 952mm (37.48") of precipitation.

Daylight

The month with the longest days in Baltasar Brum is December, with an average of 14h and 6min of daylight.
On the first day of December, sunrise is at 05:38 and sunset at 19:38. On the last day of the month, sunrise is at 05:49 and sunset at 19:55 -03.

Sunshine

With an average of 9h of sunshine, December has the most sunshine of the year.

UV index

January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

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

Frequently asked questions

The average high-temperature, in December, in Baltasar Brum, is 30.7°C (87.3°F), while the average low-temperature is 18.7°C (65.7°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is calculated to be 34°C (93.2°F).

January and December, with an average relative humidity of 61%, are the least humid months.

In Baltasar Brum, the average relative humidity in December is 61%.

In Baltasar Brum, in December, during 11.8 rainfall days, 98mm (3.86") of precipitation is typically accumulated.

With an average of 14h and 6min of daylight, December has the longest days of the year.

In Baltasar Brum, the average day length in December is 14h and 6min.

In December, on the first day of the month, sunrise is at 05:38 and sunset at 19:38. On the last day of the month, sunrise is at 05:49 and sunset at 19:55 -03.

With an average of 9h of sunshine, December has the most sunshine of the year.

The average sunshine duration in December is 9h.

The months with the highest UV index are January and December, with an average maximum UV index of 7.

The average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

28.3°C

30.7°C

31.6°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.6km/h

16.3km/h

15.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

18.5

17.7

16.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Baltasar Brum, Uruguay

Average high temperature in December: 30.7°C

The warmest month (with the highest average high temperature) is January (31.6°C).
The month with the lowest average high temperature is July (17°C).

Average low temperature in December: 18.7°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 (8.8°C).

Average pressure in December
Baltasar Brum, Uruguay

Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is December (1009.9mbar).

Average wind speed in December
Baltasar Brum, Uruguay

Average wind speed in December: 15.2km/h

The windiest month (with the highest average wind speed) is October (17.4km/h).
The calmest month (with the lowest average wind speed) is April (13.6km/h).

Average humidity in December
Baltasar Brum, Uruguay

Average humidity in December: 61%

The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are January and December (61%).

Average rainfall in December
Baltasar Brum, Uruguay

Average rainfall in December: 98mm

The wettest month (with the highest rainfall) is November (115mm).
The driest month (with the least rainfall) is August (54mm).

Average rainfall days in December
Baltasar Brum, Uruguay

Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is January (13.1 days).
The month with the least rainy days is August (9.3 days).

Average daylight in December /
Average sunshine in December
Baltasar Brum, Uruguay

Average daylight in December: 14h and 6min

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

Average sunshine in December: 9h

The month with the most sunshine is December (Average sunshine: 9h).
The month with the least sunshine is May (Average sunshine: 7h).

Average sunshine days in December
Baltasar Brum, Uruguay

Average sunshine days in December: 17.7 days

The month with the most sunshine days is August (19.7 days).
The month with the least sunshine days is February (15.4 days).

Average UV index in December
Baltasar Brum, Uruguay

Average UV index in December: 7

The months with the highest UV index are January and December (UV index 7).
The month with the lowest UV index is May (UV index 3).

Average cloud cover in December
Baltasar Brum, Uruguay

Average cloud cover in December: 24

The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is November (Cloud cover 23).

Average visibility in December
Baltasar Brum, Uruguay

Average visibility in December: 10km

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