December weather forecastSan Bernardo, Chile
December
Weather in December
As the year concludes in San Bernardo, December continues to boast warm temperatures, touching on the higher end of the scale. Remaining quite dry with a marginal rainfall of 4mm (0.16"), December exhibits a classic summer climate. Long, sunny days provide an extended window for outdoor activities. The pleasant breeze accompanied by a moderate cloud cover adds to the December charm. Marking the year-end, the city brims with enthusiasm under the warm December sun.Temperature
As November transitions into December, the average high-temperature in San Bernardo rests at a still warm 26.7°C (80.1°F), maintaining a close resemblance to the previous month. San Bernardo experiences a significant contrast between daily highs and an average nighttime temperature of 11.9°C (53.4°F) during December.Humidity
In December, the average relative humidity is 44%.Rainfall
In San Bernardo, during December, the rain falls for 1.5 days and regularly aggregates up to 4mm (0.16") of precipitation. In San Bernardo, Chile, during the entire year, the rain falls for 47.7 days and collects up to 171mm (6.73") of precipitation.Snowfall
January through June, August through December are months without snowfall in San Bernardo.Daylight
With an average of 14h and 18min of daylight, December has the longest days of the year in San Bernardo.On the first day of the month, sunrise is at 06:25 and sunset at 20:38. On the last day of December, sunrise is at 06:35 and sunset at 20:56 -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 in San Bernardo is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during December leads to these advisories:
Undertake precautions - Guarding against sun damage is counselled. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Bernardo, Chile
- Average high temperature in December: 26.7°C
The warmest month (with the highest average high temperature) is January (28.4°C).
The month with the lowest average high temperature is July (13.3°C).
- Average low temperature in December: 11.9°C
The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.3°C).
Average pressure in December
San Bernardo, Chile
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is February (1014.4mbar).
Average wind speed in December
San Bernardo, Chile
- Average wind speed in December: 7.3km/h
The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is May (5.8km/h).
Average humidity in December
San Bernardo, Chile
- Average humidity in December: 44%
The month with the highest relative humidity is July (59%).
The month with the lowest relative humidity is March (40%).
Average rainfall in December
San Bernardo, Chile
- Average rainfall in December: 4mm
The wettest month (with the highest rainfall) is June (50mm).
The driest months (with the least rainfall) are February and March (1mm).
Average rainfall days in December
San Bernardo, Chile
- Average rainfall days in December: 1.5 days
The month with the highest number of rainy days is July (7.3 days).
The month with the least rainy days is February (0.6 days).
Average snowfall in December
San Bernardo, Chile
- Average snowfall in December: 0mm
The month with the highest snowfall is July (1mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in December
San Bernardo, Chile
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is July (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
San Bernardo, Chile
- Average daylight in December: 14h and 18min
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 54min
The months with the most sunshine are January, February and December (Average sunshine: 9h and 54min).
The month with the least sunshine is June (Average sunshine: 8h and 12min).
Average sunshine days in December
San Bernardo, Chile
- Average sunshine days in December: 28.3 days
The month with the most sunshine days is March (29.3 days).
The months with the least sunshine days are June and September (21.8 days).
Average UV index in December
San Bernardo, 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 and September (UV index 3).
Average cloud cover in December
San Bernardo, Chile
- Average cloud cover in December: 6
The month with the most cloud cover is June (Cloud cover 26).
The month with the least cloud cover is February (Cloud cover 3).
Average visibility in December
San Bernardo, 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).
