December weather forecastMonteros, Argentina
December
Weather in December
December, the first month of the summer in Monteros, is still a warm month, with an average temperature fluctuating between 18.3°C (64.9°F) and 29.6°C (85.3°F).Temperature
As Monteros transitions into December, the average high-temperature stands at a still warm 29.6°C (85.3°F), offering little variation from the preceding month. Monteros experiences a mean temperature of 18.3°C (64.9°F) during December nights.Heat index
The heat index value during December is estimated at a hot 33°C (91.4°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In Monteros, the average relative humidity in December is 64%.Rainfall
In December, in Monteros, Argentina, the rain falls for 19.5 days. Throughout December, 122mm (4.8") of precipitation is accumulated. In Monteros, during the entire year, the rain falls for 159.5 days and collects up to 702mm (27.64") of precipitation.Snowfall
In Monteros, 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 48min of daylight.On the first day of December in Monteros, sunrise is at 06:19 and sunset at 20:03. On the last day of the month, sunrise is at 06:30 and sunset at 20:19 -03.
Sunshine
The average sunshine in December is 9h.UV index
January through March, October through December, with an average maximum UV index of 6, 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 the ordinary person.Note: The UV index of 6 during December leads to these advisories:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monteros, Argentina
- Average high temperature in December: 29.6°C
The warmest month (with the highest average high temperature) is January (29.8°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in December: 18.3°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 (7.2°C).
Average pressure in December
Monteros, Argentina
- Average pressure in December: 1008.8mbar
The month with the highest atmospheric pressure is July (1016.3mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in December
Monteros, Argentina
- Average wind speed in December: 7.4km/h
The windiest month (with the highest average wind speed) is October (8.6km/h).
The calmest month (with the lowest average wind speed) is June (6.3km/h).
Average humidity in December
Monteros, Argentina
- Average humidity in December: 64%
The month with the highest relative humidity is April (79%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Monteros, Argentina
- Average rainfall in December: 122mm
The wettest month (with the highest rainfall) is January (132mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in December
Monteros, Argentina
- Average rainfall days in December: 19.5 days
The month with the highest number of rainy days is January (21.3 days).
The month with the least rainy days is August (2.6 days).
Average snowfall in December
Monteros, Argentina
- Average snowfall in December: 0mm
The month with the highest snowfall is July (2mm).
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
Monteros, Argentina
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.2 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
Monteros, Argentina
- Average daylight in December: 13h and 48min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in December: 9h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is April (Average sunshine: 8h and 24min).
Average sunshine days in December
Monteros, Argentina
- Average sunshine days in December: 6.8 days
The month with the most sunshine days is August (25.3 days).
The months with the least sunshine days are January and February (5.2 days).
Average UV index in December
Monteros, Argentina
- Average UV index in December: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Monteros, Argentina
- Average cloud cover in December: 26
The months with the most cloud cover are March and April (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Monteros, Argentina
- Average visibility in December: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).





