December weather forecastCoto de Caza, CA
December
Weather in December
The first month of the winter, December, is also an enjoyable month in Coto de Caza, California, with an average temperature ranging between min 49.8°F (9.9°C) and max 63°F (17.2°C).Temperature
The month of December sees the lowest average temperatures, reaching 63°F (17.2°C) at the peak and 49.8°F (9.9°C) at the low.Humidity
In December, the average relative humidity is 60%.Rainfall
The month with the most rainfall in Coto de Caza is December, when the rain falls for 6.7 days and typically aggregates up to 0.98" (25mm) of precipitation.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:37 am and sunset at 4:42 pm. On the last day of December, in Coto de Caza, sunrise is at 6:54 am and sunset at 4:52 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.6h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in December, converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coto de Caza, CA
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in December: 49.8°F
The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).
Average pressure in December
Coto de Caza, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in December
Coto de Caza, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Coto de Caza, CA
- Average humidity in December: 60%
The months with the highest relative humidity are May and June (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in December
Coto de Caza, CA
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is December (0.98").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Coto de Caza, CA
- Average rainfall days in December: 6.7 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.3 days).
Average daylight in December /
Average sunshine in December
Coto de Caza, 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 36min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Coto de Caza, CA
- Average sunshine days in December: 22.6 days
The months with the most sunshine days are January and August (24.4 days).
The month with the least sunshine days is May (19.5 days).
Average UV index in December
Coto de Caza, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in December
Coto de Caza, CA
- Average cloud cover in December: 25
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility in December
Coto de Caza, 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).
