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 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
Weather in December
Temperature
December's weather records an average high-temperature of a still enjoyable 19.8°C (67.6°F), showing little deviation from November. San Antonio's nights in December experience an average temperature drop to a mild 13°C (55.4°F).Humidity
The average relative humidity in December in San Antonio is 74%.Rainfall
In San Antonio, during December, the rain falls for 1.1 days and regularly aggregates up to 2mm (0.08") of precipitation. In San Antonio, Chile, during the entire year, the rain falls for 40.9 days and collects up to 190mm (7.48") of precipitation.Daylight
With an average of 14h and 18min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 06:29 and sunset at 20:42. On the last day of December, in San Antonio, sunrise is at 06:39 and sunset at 20:59 -03.
Sunshine
The average sunshine in December 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 in San Antonio, Chile. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during December translates into the following guidance:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in San Antonio?
What is the average humidity in December in San Antonio?
How many days does it rain in December in San Antonio?
When are the longest days in San Antonio?
How many hours of daylight does San Antonio have in December?
When is the sunrise / sunset in December in San Antonio?
How many hours of sunshine does San Antonio have in December?
When is the highest UV index in San Antonio?
What is the UV index reading in December in San Antonio?
Average temperature in December
San Antonio, Chile
- Average high temperature in December: 19.8°C
The warmest month (with the highest average high temperature) is February (21.7°C).
The month with the lowest average high temperature is July (14.4°C).
- Average low temperature in December: 13°C
The months with the highest average low temperature are January and February (14.8°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).
Average pressure in December
San Antonio, Chile
- Average pressure in December: 1015.5mbar
The month with the highest atmospheric pressure is July (1019.6mbar).
The month with the lowest atmospheric pressure is February (1014.3mbar).
Average wind speed in December
San Antonio, Chile
- Average wind speed in December: 14.6km/h
The windiest month (with the highest average wind speed) is November (15.3km/h).
The calmest month (with the lowest average wind speed) is May (12km/h).
Average humidity in December
San Antonio, Chile
- Average humidity in December: 74%
The months with the highest relative humidity are August and September (76%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
San Antonio, Chile
- Average rainfall in December: 2mm
The wettest month (with the highest rainfall) is June (74mm).
The driest months (with the least rainfall) are January, February, March and November (1mm).
Average rainfall days in December
San Antonio, Chile
- Average rainfall days in December: 1.1 days
The month with the highest number of rainy days is June (7.3 days).
The month with the least rainy days is February (0.5 days).
Average daylight in December /
Average sunshine in December
San Antonio, 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 6min).
Average sunshine days in December
San Antonio, Chile
- Average sunshine days in December: 28.5 days
The month with the most sunshine days is January (28.8 days).
The month with the least sunshine days is June (21.9 days).
Average UV index in December
San Antonio, 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
San Antonio, Chile
- Average cloud cover in December: 12
The months with the most cloud cover are June and August (Cloud cover 28).
The month with the least cloud cover is February (Cloud cover 9).
Average visibility in December
San Antonio, 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).
San Antonio, Chile
Weather forecast for your location
2. Allow the app to use your location