December weather forecastBiassini, Uruguay
December
Weather in December
December, the first month of the summer in Biassini, is a tropical month, with temperature in the range of an average low of 18.1°C (64.6°F) and an average high of 30°C (86°F).Temperature
December's arrival coincides with a subtle temperature rise, moving from November's moderately hot 27°C (80.6°F) to a tropical 30°C (86°F). December witnesses an average low-temperature hovering around an enjoyable 18.1°C (64.6°F).Heat index
The heat index value during December is computed to be a tropical 34°C (93.2°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.One should consider that heat index numbers are for shaded settings and light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in December in Biassini is 64%.Rainfall
In Biassini, during December, the rain falls for 11.6 days and regularly aggregates up to 81mm (3.19") of precipitation. In Biassini, during the entire year, the rain falls for 116 days and collects up to 832mm (32.76") of precipitation.Daylight
The month with the longest days is December, with an average of 14h and 6min of daylight.On the first day of the month, sunrise is at 05:36 and sunset at 19:38. On the last day of December, sunrise is at 05:47 and sunset at 19:56 -03.
Sunshine
With an average of 10.9h 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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 7 in December transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Biassini, Uruguay
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is January (32.1°C).
The month with the lowest average high temperature is July (15.9°C).
- Average low temperature in December: 18.1°C
The month with the highest average low temperature is January (20.3°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).
Average pressure in December
Biassini, Uruguay
- Average pressure in December: 1010.3mbar
The month with the highest atmospheric pressure is July (1019.3mbar).
The month with the lowest atmospheric pressure is December (1010.3mbar).
Average wind speed in December
Biassini, Uruguay
- Average wind speed in December: 11km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is April (10.4km/h).
Average humidity in December
Biassini, Uruguay
- Average humidity in December: 64%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is January (60%).
Average rainfall in December
Biassini, Uruguay
- Average rainfall in December: 81mm
The wettest month (with the highest rainfall) is January (103mm).
The driest month (with the least rainfall) is July (41mm).
Average rainfall days in December
Biassini, Uruguay
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is December (11.6 days).
The month with the least rainy days is August (8.3 days).
Average daylight in December /
Average sunshine in December
Biassini, 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 6min).
- Average sunshine in December: 10h and 54min
The month with the most sunshine is December (Average sunshine: 10h and 54min).
The month with the least sunshine is June (Average sunshine: 5h and 36min).
Average sunshine days in December
Biassini, Uruguay
- Average sunshine days in December: 18 days
The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is February (17.1 days).
Average UV index in December
Biassini, 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
Biassini, Uruguay
- Average cloud cover in December: 22
The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 21).
Average visibility in December
Biassini, Uruguay
- Average visibility in December: 10km
The months with the highest visibility are January, February, March and December (10km).
The month with the lowest visibility is May (8km).





