December weather forecastSiján, Argentina
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Siján, Argentina, with an average temperature varying between 15.8°C (60.4°F) and 26.3°C (79.3°F).Temperature
December begins with an average high-temperature of a still moderately hot 26.3°C (79.3°F), reflecting close similarity to the preceding month. Siján registers a consistent average low-temperature of 15.8°C (60.4°F) during December.Humidity
The average relative humidity in December is 63%.Rainfall
In December, the rain falls for 20.7 days. Throughout December, 174mm (6.85") of precipitation is accumulated. In Siján, Argentina, during the entire year, the rain falls for 147.6 days and collects up to 870mm (34.25") of precipitation.Snowfall
In Siján, Argentina, snow does not fall in January through June, August through December.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 06:19 and sunset at 20:08. On the last day of December, sunrise is at 06:31 and sunset at 20:25 -03.
Sunshine
In Siján, the average sunshine in December is 9h.UV index
The month with the highest UV index is December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: An average UV index of 6 in December transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. 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. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Siján, Argentina
- Average high temperature in December: 26.3°C
The warmest month (with the highest average high temperature) is January (26.8°C).
The month with the lowest average high temperature is July (14.8°C).
- Average low temperature in December: 15.8°C
The month with the highest average low temperature is January (16.5°C).
The coldest month (with the lowest average low temperature) is July (4.6°C).
Average pressure in December
Siján, Argentina
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is July (1015.9mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Siján, Argentina
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is November (14.9km/h).
The calmest month (with the lowest average wind speed) is June (10.7km/h).
Average humidity in December
Siján, Argentina
- Average humidity in December: 63%
The month with the highest relative humidity is April (75%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Siján, Argentina
- Average rainfall in December: 174mm
The wettest month (with the highest rainfall) is January (189mm).
The driest months (with the least rainfall) are July and August (4mm).
Average rainfall days in December
Siján, Argentina
- Average rainfall days in December: 20.7 days
The month with the highest number of rainy days is January (22.1 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in December
Siján, Argentina
- Average snowfall in December: 0mm
The month with the highest snowfall is July (3mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in December
Siján, Argentina
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.3 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
Siján, 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: 9h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is April (Average sunshine: 8h and 30min).
Average sunshine days in December
Siján, Argentina
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Siján, Argentina
- Average UV index in December: 6
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).
Average cloud cover in December
Siján, Argentina
- Average cloud cover in December: 27
The month with the most cloud cover is April (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in December
Siján, Argentina
- Average visibility in December: 9km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).
