December weather forecastSanta Ynez, CA
December
Weather in December
December, the first month of the winter in Santa Ynez, is still a comfortable month, with an average temperature ranging between max 61°F (16.1°C) and min 47.1°F (8.4°C).Temperature
December is the month when Santa Ynez experiences its coldest temperatures, averaging a high of 61°F (16.1°C) and a low of 47.1°F (8.4°C).Humidity
In Santa Ynez, the average relative humidity in December is 60%.Rainfall
In Santa Ynez, in December, it is raining for 6.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Santa Ynez, during the entire year, the rain falls for 48.3 days and collects up to 9.84" (250mm) of precipitation.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Santa Ynez.On the first day of December in Santa Ynez, sunrise is at 6:49 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:00 pm PST.
Sunshine
In December, the average sunshine is 6.8h.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index in Santa Ynez. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Santa Ynez, CA
- Average high temperature in December: 61°F
The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (61°F).
- Average low temperature in December: 47.1°F
The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is February (46.8°F).
Average pressure in December
Santa Ynez, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in December
Santa Ynez, CA
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are April and May (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Santa Ynez, CA
- Average humidity in December: 60%
The month with the highest relative humidity is March (64%).
The month with the lowest relative humidity is October (54%).
Average rainfall in December
Santa Ynez, CA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is January (2.09").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Santa Ynez, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is August (0.8 days).
Average daylight in December /
Average sunshine in December
Santa Ynez, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 48min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in December
Santa Ynez, CA
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is August (29.1 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in December
Santa Ynez, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Santa Ynez, CA
- Average cloud cover in December: 23
The month with the most cloud cover is March (Cloud cover 25).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in December
Santa Ynez, 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).
