December weather forecastNancagua, Chile

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Nancagua, Chile, with an average temperature ranging between min 11.4°C (52.5°F) and max 29.7°C (85.5°F).

Temperature

The onset of December manifests an average high-temperature of a still moderately hot 29.7°C (85.5°F), demonstrating a minor variation from the preceding month. Despite a significant deviation from daily highs, December sees an average nighttime temperature of 11.4°C (52.5°F).

Heat index

The heat index for December is evaluated at a tropical 30°C (86°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Realize that the values for the heat index are set for shaded places and light winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Nancagua, Chile, the average relative humidity in December is 46%.

Rainfall

December is the last month it rains in Nancagua. During 1.4 rainfall days, in December, Nancagua aggregates 4mm (0.16") of precipitation. In Nancagua, during the entire year, the rain falls for 48.3 days and collects up to 349mm (13.74") of precipitation.

Daylight

With an average of 14h and 24min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 06:24 and sunset at 20:43. On the last day of December, in Nancagua, sunrise is at 06:35 and sunset at 21:01 -03.

Sunshine

The average sunshine in December is 9.7h.

UV index

The months with the highest UV index are January, February, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Updated: Jan 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Nancagua, is 29.7°C (85.5°F), while the average low-temperature is 11.4°C (52.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in December is evaluated at 30°C (86°F).

The average relative humidity in December in Nancagua, Chile, is 46%.

December is the last month it rains in Nancagua. During 1.4 rainfall days, in December, Nancagua aggregates 4mm (0.16") of precipitation.

With an average of 14h and 24min of daylight, December has the longest days of the year in Nancagua, Chile.

In December, the average day length in Nancagua is 14h and 26min.

In December, on the first day of the month, sunrise is at 06:24 and sunset at 20:43. On the last day of the month, in Nancagua, sunrise is at 06:35 and sunset at 21:01 -03.

In December, the average sunshine duration in Nancagua is 9.7h.

The months with the highest UV index in Nancagua, Chile, are January, February, November and December, with an average maximum UV index of 6.

In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

27.1°C

29.7°C

32.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.9km/h

9.4km/h

9.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

27.7

29.5

30.1

Average UV index

Average cloud cover

12%

Average visibility

10km

Average temperature in December
Nancagua, Chile

Average high temperature in December: 29.7°C

The warmest month (with the highest average high temperature) is January (32.1°C).
The month with the lowest average high temperature is July (14.3°C).

Average low temperature in December: 11.4°C

The month with the highest average low temperature is January (13.1°C).
The coldest month (with the lowest average low temperature) is July (4.8°C).

Average pressure in December
Nancagua, Chile

Average pressure in December: 1014.9mbar

The month with the highest atmospheric pressure is July (1019.9mbar).
The month with the lowest atmospheric pressure is February (1014.2mbar).

Average wind speed in December
Nancagua, Chile

Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is June (8.1km/h).
The calmest month (with the lowest average wind speed) is April (6.7km/h).

Average humidity in December
Nancagua, Chile

Average humidity in December: 46%

The months with the highest relative humidity are July and August (65%).
The months with the lowest relative humidity are February and March (44%).

Average rainfall in December
Nancagua, Chile

Average rainfall in December: 4mm

The wettest month (with the highest rainfall) is June (112mm).
The driest month (with the least rainfall) is January (0mm).

Average rainfall days in December
Nancagua, Chile

Average rainfall days in December: 1.4 days

The month with the highest number of rainy days is June (8.1 days).
The months with the least rainy days are January and February (0.8 days).

Average daylight in December /
Average sunshine in December
Nancagua, Chile

Average daylight in December: 14h and 24min

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: 9h and 42min

The month with the most sunshine is January (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 7h and 48min).

Average sunshine days in December
Nancagua, Chile

Average sunshine days in December: 29.5 days

The month with the most sunshine days is January (30.1 days).
The month with the least sunshine days is June (21.3 days).

Average UV index in December
Nancagua, Chile

Average UV index in December: 6

The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).

Average cloud cover in December
Nancagua, Chile

Average cloud cover in December: 8

The months with the most cloud cover are June and August (Cloud cover 31).
The months with the least cloud cover are January and February (Cloud cover 5).

Average visibility in December
Nancagua, Chile

Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).