December weather forecastRío Segundo, Argentina
December
Weather in December
December, the first month of the summer in Río Segundo, is a hot month, with an average temperature fluctuating between 18.7°C (65.7°F) and 31.5°C (88.7°F).Temperature
December ushers in an average high-temperature of a hot 31.5°C (88.7°F), aligning closely with the preceding month. December nights in Río Segundo report a substantial dip from daytime highs to an average of 18.7°C (65.7°F).Heat index
December's average heat index is appraised at a hot 33°C (91.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. 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', comes about by integrating the temperature readings with the humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The least humid month is December, with an average relative humidity of 48%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 57mm (2.24") of precipitation is accumulated. Throughout the year, there are 103.7 rainfall days, and 427mm (16.81") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 12min of daylight.On the first day of the month, sunrise is at 06:02 and sunset at 20:06. On the last day of December, in Río Segundo, sunrise is at 06:13 and sunset at 20:24 -03.
Sunshine
The average sunshine in December is 9.3h.UV index
December is the month with the highest UV index in Río Segundo, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 7 in December translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Río Segundo, Argentina
- Average high temperature in December: 31.5°C
The warmest month (with the highest average high temperature) is January (32.8°C).
The month with the lowest average high temperature is July (16.3°C).
- Average low temperature in December: 18.7°C
The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (6.9°C).
Average pressure in December
Río Segundo, Argentina
- Average pressure in December: 1010.3mbar
The month with the highest atmospheric pressure is July (1019.1mbar).
The month with the lowest atmospheric pressure is December (1010.3mbar).
Average wind speed in December
Río Segundo, Argentina
- Average wind speed in December: 13.9km/h
The windiest month (with the highest average wind speed) is September (16km/h).
The calmest month (with the lowest average wind speed) is February (12.2km/h).
Average humidity in December
Río Segundo, Argentina
- Average humidity in December: 48%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is December (48%).
Average rainfall in December
Río Segundo, Argentina
- Average rainfall in December: 57mm
The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in December
Río Segundo, Argentina
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is November (12.9 days).
The month with the least rainy days is August (2.6 days).
Average daylight in December /
Average sunshine in December
Río Segundo, Argentina
- Average daylight in December: 14h and 12min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 9h and 18min
The month with the most sunshine is January (Average sunshine: 9h and 24min).
The month with the least sunshine is May (Average sunshine: 8h and 0min).
Average sunshine days in December
Río Segundo, Argentina
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is November (15 days).
Average UV index in December
Río Segundo, Argentina
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Río Segundo, Argentina
- Average cloud cover in December: 20
The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Río Segundo, Argentina
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is May (9km).





