December weather forecastVallenar, Chile
December
Weather in December
December, the first month of the summer in Vallenar, is also a moderately hot month, with an average temperature fluctuating between 25.4°C (77.7°F) and 14.5°C (58.1°F).Temperature
Vallenar marks the arrival of December with an average high-temperature of a still moderately hot 25.4°C (77.7°F), hardly different from November's 24.5°C (76.1°F). Throughout the month of December, Vallenar observes an average nighttime temperature of 14.5°C (58.1°F).Humidity
In December, the average relative humidity is 52%.Rainfall
February, November and December are months without rainfall.Daylight
The month with the longest days is December, with an average of 13h and 54min of daylight.On the first day of the month, sunrise is at 06:37 and sunset at 20:27. On the last day of December, sunrise is at 06:48 and sunset at 20:44 -03.
Sunshine
In December, the average sunshine is 9.9h.UV index
The months with the highest UV index are January, February and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 6 suggests these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vallenar, Chile
- Average high temperature in December: 25.4°C
The warmest month (with the highest average high temperature) is February (26.5°C).
The month with the lowest average high temperature is July (18.8°C).
- Average low temperature in December: 14.5°C
The months with the highest average low temperature are January and February (15.3°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure in December
Vallenar, Chile
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is February (1014.5mbar).
Average wind speed in December
Vallenar, Chile
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is January (9.4km/h).
The calmest month (with the lowest average wind speed) is June (6.4km/h).
Average humidity in December
Vallenar, Chile
- Average humidity in December: 52%
The months with the highest relative humidity are January and February (56%).
The months with the lowest relative humidity are June, July and August (43%).
Average rainfall in December
Vallenar, Chile
- Average rainfall in December: 0mm
The wettest month (with the highest rainfall) is May (12mm).
The driest months (with the least rainfall) are February, November and December (0mm).
Average rainfall days in December
Vallenar, Chile
- Average rainfall days in December: 0.5 days
The month with the highest number of rainy days is July (2.6 days).
The month with the least rainy days is November (0.1 days).
Average daylight in December /
Average sunshine in December
Vallenar, Chile
- Average daylight in December: 13h and 54min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 9h and 54min
The months with the most sunshine are January and February (Average sunshine: 10h and 0min).
The month with the least sunshine is May (Average sunshine: 9h and 12min).
Average sunshine days in December
Vallenar, Chile
- Average sunshine days in December: 30.6 days
The month with the most sunshine days is December (30.6 days).
The month with the least sunshine days is February (27.3 days).
Average UV index in December
Vallenar, Chile
- Average UV index in December: 6
The months with the highest UV index are January, February 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
Vallenar, Chile
- Average cloud cover in December: 4
The month with the most cloud cover is May (Cloud cover 13).
The months with the least cloud cover are February, March, November and December (Cloud cover 4).
Average visibility in December
Vallenar, 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).
