December weather forecastSan Roque, Argentina
December
Weather in December
December, the first month of the summer in San Roque, is a tropical month, with an average temperature fluctuating between 32.2°C (90°F) and 19.4°C (66.9°F).Temperature
The transition into December notes an average high-temperature of a tropical 32.2°C (90°F), revealing a mild distinction from the 29.4°C (84.9°F) in November. San Roque, in the heat of December, registers a significant plunge to a mean of 19.4°C (66.9°F) during the nights.Heat index
The heat index in December is appraised at a fiery hot 39°C (102.2°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In December, the average relative humidity in San Roque is 64%.Rainfall
The month with the most rainfall in San Roque is December, when the rain falls for 11.7 days and typically aggregates up to 109mm (4.29") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 54min of daylight.On the first day of the month, sunrise is at 05:49 and sunset at 19:39. On the last day of December, in San Roque, sunrise is at 06:00 and sunset at 19:56 -03.
Sunshine
With an average of 10.8h of sunshine, December has the most sunshine of the year in San Roque.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: An average UV index of 7 in December transforms into this advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Roque, Argentina
- Average high temperature in December: 32.2°C
The warmest month (with the highest average high temperature) is January (33.3°C).
The month with the lowest average high temperature is July (18.1°C).
- Average low temperature in December: 19.4°C
The month with the highest average low temperature is January (21.1°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in December
San Roque, Argentina
- Average pressure in December: 1008.7mbar
The month with the highest atmospheric pressure is July (1018mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).
Average wind speed in December
San Roque, Argentina
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is October (12.1km/h).
The calmest month (with the lowest average wind speed) is April (9.1km/h).
Average humidity in December
San Roque, Argentina
- Average humidity in December: 64%
The months with the highest relative humidity are May and June (83%).
The month with the lowest relative humidity is January (62%).
Average rainfall in December
San Roque, Argentina
- Average rainfall in December: 109mm
The wettest month (with the highest rainfall) is December (109mm).
The driest month (with the least rainfall) is July (18mm).
Average rainfall days in December
San Roque, Argentina
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is January (12.5 days).
The month with the least rainy days is August (5.9 days).
Average daylight in December /
Average sunshine in December
San Roque, Argentina
- Average daylight in December: 13h and 54min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- 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 May (Average sunshine: 6h and 48min).
Average sunshine days in December
San Roque, Argentina
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is February (15.4 days).
Average UV index in December
San Roque, Argentina
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
San Roque, Argentina
- Average cloud cover in December: 23
The month with the most cloud cover is May (Cloud cover 47).
The months with the least cloud cover are January and December (Cloud cover 23).
Average visibility in December
San Roque, Argentina
- Average visibility in December: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are May, June and July (8km).





