December weather forecastGuayacán, Chile

December

Weather in December

The first month of the summer, December, is an agreeable month in Guayacán, Chile, with an average temperature varying between 15.3°C (59.5°F) and 20.5°C (68.9°F).

Temperature

The advent of December reveals an average high-temperature of a pleasant 20.5°C (68.9°F), showing minimal difference from the prior month. The mean low-temperature during December nights is a moderate 15.3°C (59.5°F).

Humidity

The average relative humidity in December is 72%.

Rainfall

January, November and December are months without rainfall.

Daylight

The month with the longest days is December, with an average of 14h and 0min of daylight.
On the first day of the month, sunrise is at 06:36 and sunset at 20:32. On the last day of December, sunrise is at 06:47 and sunset at 20:49 -03.

Sunshine

The months with the most sunshine are January, February and December, with an average of 9.9h of sunshine.

UV index

In December, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 5 during December morphs into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Updated: Jul 13, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during December are 20.5°C (68.9°F) and 15.3°C (59.5°F) respectively.

In December, the average relative humidity is 72%.

January, November and December are months without rainfall.

With an average of 14h and 0min of daylight, December has the longest days of the year.

In December, the average day length is 14h and 2min.

In December, on the first day of the month, sunrise is at 06:36 and sunset at 20:32. On the last day of the month, sunrise is at 06:47 and sunset at 20:49 -03.

The months with the most sunshine are January, February and December, with an average of 9.9h of sunshine.

In Guayacán, the average sunshine duration in December is 9.9h.

The average daily maximum UV index in December in Guayacán is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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

19.9°C

20.5°C

22°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

14.8km/h

14.4km/h

13.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

28.9

29.1

29.3

Average UV index

Average cloud cover

Average visibility

10km

Average temperature in December
Guayacán, Chile

Average high temperature in December: 20.5°C

The warmest month (with the highest average high temperature) is February (22.3°C).
The month with the lowest average high temperature is July (16.3°C).

Average low temperature in December: 15.3°C

The month with the highest average low temperature is February (17°C).
The coldest month (with the lowest average low temperature) is July (11.7°C).

Average pressure in December
Guayacán, Chile

Average pressure in December: 1014.9mbar

The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is February (1014.1mbar).

Average wind speed in December
Guayacán, Chile

Average wind speed in December: 13.3km/h

The windiest month (with the highest average wind speed) is November (13.5km/h).
The calmest month (with the lowest average wind speed) is May (9.9km/h).

Average humidity in December
Guayacán, Chile

Average humidity in December: 72%

The months with the highest relative humidity are January and February (73%).
The months with the lowest relative humidity are June and July (66%).

Average rainfall in December
Guayacán, Chile

Average rainfall in December: 0mm

The wettest month (with the highest rainfall) is June (20mm).
The driest months (with the least rainfall) are January, November and December (0mm).

Average rainfall days in December
Guayacán, Chile

Average rainfall days in December: 0.8 days

The month with the highest number of rainy days is June (3.1 days).
The month with the least rainy days is November (0.3 days).

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

Average daylight in December: 14h and 0min

The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 12min).

Average sunshine in December: 9h and 54min

The months with the most sunshine are January, February and December (Average sunshine: 9h and 54min).
The months with the least sunshine are May, June and July (Average sunshine: 9h and 6min).

Average sunshine days in December
Guayacán, Chile

Average sunshine days in December: 29.1 days

The month with the most sunshine days is March (29.9 days).
The month with the least sunshine days is June (26.5 days).

Average UV index in December
Guayacán, Chile

Average UV index in December: 5

The month with the highest UV index is January (UV index 6).
The months with the lowest UV index are June, July, August and September (UV index 4).

Average cloud cover in December
Guayacán, Chile

Average cloud cover in December: 7

The month with the most cloud cover is May (Cloud cover 16).
The month with the least cloud cover is February (Cloud cover 6).

Average visibility in December
Guayacán, 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).