December weather forecastPenco, Chile

December

Weather in December

The first month of the summer, December, is a pleasant month in Penco, Chile, with temperature in the range of an average high of 20.1°C (68.2°F) and an average low of 11.8°C (53.2°F).

Temperature

Penco sees the arrival of December with an average high-temperature of a pleasant 20.1°C (68.2°F), indicating a subtle variation from November. An average low-temperature of 11.8°C (53.2°F) is expected during December.

Humidity

The average relative humidity in December is 72%.

Rainfall

In Penco, in December, during 4.1 rainfall days, 8mm (0.31") of precipitation is typically accumulated. In Penco, during the entire year, the rain falls for 99.3 days and collects up to 574mm (22.6") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 36min of daylight.
On the first day of the month, sunrise is at 06:26 and sunset at 20:56. On the last day of December, sunrise is at 06:36 and sunset at 21:14 -03.

Sunshine

The average sunshine in December is 11.2h.

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 5 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

In December, the average high-temperature and low-temperature are 20.1°C (68.2°F) and 11.8°C (53.2°F) respectively.

In December, the average relative humidity is 72%.

In Penco, in December, during 4.1 rainfall days, 8mm (0.31") of precipitation is typically accumulated.

The month with the longest days is December, with an average of 14h and 36min of daylight.

In Penco, the average day length in December is 14h and 38min.

In December, on the first day of the month, sunrise is at 06:26 and sunset at 20:56. On the last day of the month, in Penco, sunrise is at 06:36 and sunset at 21:14 -03.

In Penco, the average sunshine duration in December is 11.2h.

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 5.

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Penco, Chile

  • Average high temperature in December: 20.1°C

The warmest month (with the highest average high temperature) is January (22.4°C).
The month with the lowest average high temperature is July (12.1°C).

  • Average low temperature in December: 11.8°C

The month with the highest average low temperature is January (13.5°C).
The coldest month (with the lowest average low temperature) is July (7.4°C).

Average pressure in December
Penco, Chile

  • Average pressure in December: 1015.7mbar

The months with the highest atmospheric pressure are July and September (1019.9mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).

Average wind speed in December
Penco, Chile

  • Average wind speed in December: 14.7km/h

The windiest month (with the highest average wind speed) is January (15.1km/h).
The calmest month (with the lowest average wind speed) is May (11.9km/h).

Average humidity in December
Penco, Chile

  • Average humidity in December: 72%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is January (69%).

Average rainfall in December
Penco, Chile

  • Average rainfall in December: 8mm

The wettest month (with the highest rainfall) is June (156mm).
The driest month (with the least rainfall) is January (4mm).

Average rainfall days in December
Penco, Chile

  • Average rainfall days in December: 4.1 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (2.6 days).

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

  • Average daylight in December: 14h and 36min

The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).

  • Average sunshine in December: 11h and 12min

The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 30min).

Average sunshine days in December
Penco, Chile

  • Average sunshine days in December: 26 days

The month with the most sunshine days is January (27.9 days).
The month with the least sunshine days is July (13.4 days).

Average UV index in December
Penco, Chile

  • Average UV index in December: 5

The months with the highest UV index are January, February, March, November and December (UV index 5).
The months with the lowest UV index are June, July and August (UV index 3).

Average cloud cover in December
Penco, Chile

  • Average cloud cover in December: 15

The month with the most cloud cover is June (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 10).

Average visibility in December
Penco, Chile

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, June, October, November and December (10km).
The months with the lowest visibility are May, July, August and September (9km).