December weather forecastRisso, Uruguay
December
Weather in December
The first month of the summer, December, is a hot month in Risso, Uruguay, with an average temperature varying between 30.3°C (86.5°F) and 16.3°C (61.3°F).Temperature
Risso in December observes a minor temperature shift, with average high-temperatures adjusting from a moderately hot 26.7°C (80.1°F) in November to a tropical 30.3°C (86.5°F). In December, the recorded average low-temperature in Risso, of 16.3°C (61.3°F), exhibits a significant fall from the daytime highs.Heat index
December's mean heat index is calculated to be a hot 34°C (93.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in December is 61%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 76mm (2.99") of precipitation is accumulated. In Risso, during the entire year, the rain falls for 111.9 days and collects up to 698mm (27.48") 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 the month, sunrise is at 05:32 and sunset at 19:46. On the last day of December, sunrise is at 05:43 and sunset at 20:03 -03.
Sunshine
The month with the most sunshine is December, with an average of 10.8h of sunshine.UV index
The months with the highest UV index are January through March, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 in December translates into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Risso, Uruguay
- Average high temperature in December: 30.3°C
The warmest month (with the highest average high temperature) is January (32.4°C).
The month with the lowest average high temperature is July (15.1°C).
- Average low temperature in December: 16.3°C
The month with the highest average low temperature is January (18.6°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in December
Risso, Uruguay
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in December
Risso, Uruguay
- Average wind speed in December: 11.4km/h
The windiest month (with the highest average wind speed) is September (13.2km/h).
The calmest month (with the lowest average wind speed) is April (10.8km/h).
Average humidity in December
Risso, Uruguay
- Average humidity in December: 61%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is January (57%).
Average rainfall in December
Risso, Uruguay
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is February (80mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in December
Risso, Uruguay
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is October (11.7 days).
The month with the least rainy days is June (7 days).
Average daylight in December /
Average sunshine in December
Risso, 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 48min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Risso, Uruguay
- Average sunshine days in December: 19.9 days
The month with the most sunshine days is June (21.7 days).
The month with the least sunshine days is September (17.6 days).
Average UV index in December
Risso, Uruguay
- Average UV index in December: 6
The months with the highest UV index are January, February, March, November and December (UV index 6).
The month with the lowest UV index is May (UV index 3).
Average cloud cover in December
Risso, 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 20).
Average visibility in December
Risso, Uruguay
- Average visibility in December: 9km
The month with the highest visibility is January (10km).
The month with the lowest visibility is May (8km).
