December weather forecastSan Diego Country Estates, CA
December
Weather in December
The first month of the winter, December, is still a refreshing month in San Diego Country Estates, California, with an average temperature varying between 44.6°F (7°C) and 61.3°F (16.3°C).Temperature
San Diego Country Estates's temperature records reveal December as the coldest month, marked by average highs of 61.3°F (16.3°C) and lows of 44.6°F (7°C).Humidity
In San Diego Country Estates, the average relative humidity in December is 57%.Rainfall
In December, in San Diego Country Estates, the rain falls for 5.5 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. In San Diego Country Estates, during the entire year, the rain falls for 62 days and collects up to 6.38" (162mm) of precipitation.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in San Diego Country Estates, sunrise is at 6:32 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:51 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.7h of sunshine.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
San Diego Country Estates, CA
- Average high temperature in December: 61.3°F
The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).
- Average low temperature in December: 44.6°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).
Average pressure in December
San Diego Country Estates, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
San Diego Country Estates, CA
- Average wind speed in December: 5.1mph
The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in December
San Diego Country Estates, CA
- Average humidity in December: 57%
The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).
Average rainfall in December
San Diego Country Estates, CA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
San Diego Country Estates, CA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).
Average daylight in December /
Average sunshine in December
San Diego Country Estates, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
San Diego Country Estates, CA
- Average sunshine days in December: 24 days
The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in December
San Diego Country Estates, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
San Diego Country Estates, CA
- Average cloud cover in December: 23
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
San Diego Country Estates, CA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
