Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Observing a slight rise in December, the average high-temperature shifts from November's moderately hot 28.3°C (82.9°F) to a tropical 31.6°C (88.9°F). A steep decline to a comfortable 16.8°C (62.2°F) characterizes the December nights.Heat index
In December, the average heat index is calculated to be a fiery hot 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In December, the average relative humidity in San Nicolás de los Arroyos is 55%.Rainfall
December is the month with the most rainfall in San Nicolás de los Arroyos, Argentina. Rain falls for 9.5 days and accumulates 73mm (2.87") 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 December, sunrise is at 05:44 and sunset at 19:56. On the last day of the month, sunrise is at 05:54 and sunset at 20:13 -03.
Sunshine
December has the most sunshine of the year, with an average of 11.1h of sunshine.UV index
In December, the average daily maximum UV index in San Nicolás de los Arroyos is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 during December translates into the following guidance:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in San Nicolás de los Arroyos in December?
What is the average humidity in December in San Nicolás de los Arroyos?
What is the rainiest month in San Nicolás de los Arroyos?
How many days does it rain in December in San Nicolás de los Arroyos?
When are the longest days in San Nicolás de los Arroyos?
How many hours of daylight does San Nicolás de los Arroyos have in December?
What time are sunrise and sunset in December in San Nicolás de los Arroyos?
What month has the most sunshine in San Nicolás de los Arroyos?
How long on average sun shines in December in San Nicolás de los Arroyos?
What is the UV index intensity in December in San Nicolás de los Arroyos?
Average temperature in December
San Nicolás de los Arroyos, Argentina
- Average high temperature in December: 31.6°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 (15.3°C).
- Average low temperature in December: 16.8°C
The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (7°C).
Average pressure in December
San Nicolás de los Arroyos, Argentina
- Average pressure in December: 1009.9mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1009.9mbar).
Average wind speed in December
San Nicolás de los Arroyos, Argentina
- Average wind speed in December: 10.4km/h
The windiest month (with the highest average wind speed) is September (12.4km/h).
The calmest months (with the lowest average wind speed) are February and March (9.7km/h).
Average humidity in December
San Nicolás de los Arroyos, Argentina
- Average humidity in December: 55%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is January (53%).
Average rainfall in December
San Nicolás de los Arroyos, Argentina
- Average rainfall in December: 73mm
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is June (18mm).
Average rainfall days in December
San Nicolás de los Arroyos, Argentina
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is October (10.6 days).
The month with the least rainy days is June (5.3 days).
Average daylight in December /
Average sunshine in December
San Nicolás de los Arroyos, Argentina
- Average daylight in December: 14h and 2min
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: 11h and 1min
The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 54min).
Average sunshine days in December
San Nicolás de los Arroyos, Argentina
- Average sunshine days in December: 20.3 days
The months with the most sunshine days are June and August (23.8 days).
The month with the least sunshine days is October (19.4 days).
Average UV index in December
San Nicolás de los Arroyos, Argentina
- Average UV index in December: 6
The month with the highest UV index is January (UV index 7).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in December
San Nicolás de los Arroyos, Argentina
- Average cloud cover in December: 20
The month with the most cloud cover is May (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
San Nicolás de los Arroyos, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February and December (10km).
The months with the lowest visibility are March, April, May, June, July, August, September, October and November (9km).
San Nicolás de los Arroyos, Argentina
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