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 snowfall 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
With the onset of December, San Isidro observes a minor temperature ascent, with the average high-temperature adjusting from November's moderately hot 24.6°C (76.3°F) to a still warm 28.4°C (83.1°F). The month of December records an average low-temperature of 18.5°C (65.3°F) in San Isidro.Heat index
December's mean heat index is computed to be a tropical 30°C (86°F). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In San Isidro, the average relative humidity in December is 59%.Rainfall
In San Isidro, in December, it is raining for 8.6 days, with typically 51mm (2.01") of accumulated precipitation. In San Isidro, Argentina, during the entire year, the rain falls for 100 days and collects up to 474mm (18.66") of precipitation.Snowfall
In San Isidro, snow does not fall in January through June, August through December.Daylight
December has the longest days of the year in San Isidro, Argentina, with an average of 14h and 24min of daylight.On the first day of December in San Isidro, sunrise is at 05:34 and sunset at 19:52. On the last day of the month, sunrise is at 05:44 and sunset at 20:09 -03.
Sunshine
December has the most sunshine of the year, with an average of 11.1h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index in San Isidro. 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 daily high UV index of 6 during December translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
How hot is December in San Isidro?
What is the average humidity in December in San Isidro?
How many days does it rain in December in San Isidro?
When it does not snow in San Isidro?
When are the longest days in San Isidro?
How many hours of daylight does San Isidro have in December?
When are sunrise and sunset in December in San Isidro?
What month has the most sunshine in San Isidro?
How long on average sun shines in December in San Isidro?
What are the months with the highest UV index in San Isidro?
What is the UV index intensity in December in San Isidro?
Average temperature in December
San Isidro, Argentina
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is January (30°C).
The month with the lowest average high temperature is July (14°C).
- Average low temperature in December: 18.5°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 (8.4°C).
Average pressure in December
San Isidro, Argentina
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011mbar).
Average wind speed in December
San Isidro, Argentina
- Average wind speed in December: 14km/h
The windiest month (with the highest average wind speed) is September (16.6km/h).
The calmest months (with the lowest average wind speed) are March and December (14km/h).
Average humidity in December
San Isidro, Argentina
- Average humidity in December: 59%
The months with the highest relative humidity are May and July (75%).
The month with the lowest relative humidity is January (58%).
Average rainfall in December
San Isidro, Argentina
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in December
San Isidro, Argentina
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is October (9.6 days).
The month with the least rainy days is August (6.9 days).
Average snowfall days in December
San Isidro, Argentina
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
San Isidro, Argentina
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- 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: 5h and 48min).
Average sunshine days in December
San Isidro, Argentina
- Average sunshine days in December: 20.7 days
The months with the most sunshine days are January and August (22.1 days).
The month with the least sunshine days is February (18.6 days).
Average UV index in December
San Isidro, Argentina
- 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 July (UV index 3).
Average cloud cover in December
San Isidro, Argentina
- Average cloud cover in December: 19
The month with the most cloud cover is July (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
San Isidro, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
San Isidro, Argentina
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