Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
In December, Viña del Mar notes an average high-temperature of a still agreeable 21.9°C (71.4°F), hardly different from the preceding month. December nights in Viña del Mar experience a consistent temperature drop to a fresh 12.8°C (55°F).Humidity
In December, the average relative humidity is 69%.Rainfall
December is the last month it rains. During 0.8 rainfall days, in December, Viña del Mar aggregates 2mm (0.08") of precipitation. In Viña del Mar, during the entire year, the rain falls for 33.7 days and collects up to 178mm (7.01") of precipitation.Sea temperature
In Viña del Mar, in December, the average water temperature is 16.4°C (61.5°F).Note: Swimming in 16.4°C (61.5°F) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the longest days of the year, with an average of 14h and 18min of daylight.On the first day of the month, sunrise is at 06:30 and sunset at 20:40. On the last day of December, sunrise is at 06:40 and sunset at 20:58 -03.
Sunshine
In December, the average sunshine is 9.8h.UV index
January through April, November and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during December translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
What is the last month it rains in Viña del Mar?
What is the sea temperature in December?
When are the longest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Viña del Mar have in December?
What is the month with the highest UV index?
What is the UV index reading in December?
Average temperature in December
Viña del Mar, Chile
- Average high temperature in December: 21.9°C
The warmest months (with the highest average high temperature) are January and February (23.3°C).
The month with the lowest average high temperature is July (15.4°C).
- Average low temperature in December: 12.8°C
The month with the highest average low temperature is January (14.7°C).
The coldest month (with the lowest average low temperature) is July (8.3°C).
Average pressure in December
Viña del Mar, Chile
- Average pressure in December: 1015.6mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).
Average wind speed in December
Viña del Mar, Chile
- Average wind speed in December: 12.9km/h
The windiest month (with the highest average wind speed) is November (13.6km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).
Average humidity in December
Viña del Mar, Chile
- Average humidity in December: 69%
The months with the highest relative humidity are July, August and September (72%).
The month with the lowest relative humidity is April (66%).
Average rainfall in December
Viña del Mar, Chile
- Average rainfall in December: 2mm
The wettest month (with the highest rainfall) is June (71mm).
The driest months (with the least rainfall) are January and February (0mm).
Average rainfall days in December
Viña del Mar, Chile
- Average rainfall days in December: 0.8 days
The month with the highest number of rainy days is June (6.8 days).
The month with the least rainy days is February (0.3 days).
Average sea temperature in December
Viña del Mar, Chile
- Average sea temperature in December: 16.4°C
The best month for swimming (with the highest average sea temperature) is February (17.9°C).
The coldest month (with the lowest average sea temperature) is July (13.1°C).
Average daylight in December /
Average sunshine in December
Viña del Mar, Chile
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 9h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 0min).
Average sunshine days in December
Viña del Mar, Chile
- Average sunshine days in December: 29.8 days
The months with the most sunshine days are January and March (30.3 days).
The month with the least sunshine days is June (22.7 days).
Average UV index in December
Viña del Mar, Chile
- Average UV index in December: 5
The months with the highest UV index are January, February, March, April, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August, September and October (UV index 4).
Average cloud cover in December
Viña del Mar, Chile
- Average cloud cover in December: 11
The month with the most cloud cover is June (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 7).
Average visibility in December
Viña del Mar, Chile
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May and June (10km).
The months with the lowest visibility are July, August, September, October, November and December (9km).
