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, marked by an average high-temperature of 61.9°F (16.6°C) and a low-temperature of 51.6°F (10.9°C), is the coldest month.Humidity
The average relative humidity in December in Capistrano Beach is 63%.Rainfall
The month with the most rainfall is December, when the rain falls for 6.8 days and typically aggregates up to 1.93" (49mm) 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 December, sunrise is at 6:37 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:53 pm PST.
Sunshine
December has the least sunshine of the year in Capistrano Beach, with an average of 6.4h 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 unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What month is the coldest in Capistrano Beach?
What are the temperatures in Capistrano Beach in December?
What is the average humidity in December in Capistrano Beach?
What is the wettest month in Capistrano Beach?
How many days does it rain in December in Capistrano Beach?
What is the month with the shortest days in Capistrano Beach?
What is the average length of the day in December in Capistrano Beach?
When is the sunrise / sunset in December in Capistrano Beach?
What is the month with the least sunshine in Capistrano Beach?
How many hours of sunshine does Capistrano Beach have in December?
What is the month with the lowest UV index in Capistrano Beach?
How high is the UV index in December in Capistrano Beach?
Average temperature in December
Capistrano Beach, CA
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is September (75.7°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in December: 51.6°F
The month with the highest average low temperature is September (63.5°F).
The coldest month (with the lowest average low temperature) is February (51.1°F).
Average pressure in December
Capistrano Beach, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in December
Capistrano Beach, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is October (5.1mph).
Average humidity in December
Capistrano Beach, CA
- Average humidity in December: 63%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is November (61%).
Average rainfall in December
Capistrano Beach, CA
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is December (1.93").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in December
Capistrano Beach, CA
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is March (8.1 days).
The month with the least rainy days is June (3.6 days).
Average daylight in December /
Average sunshine in December
Capistrano Beach, 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 2min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in December
Capistrano Beach, CA
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is February (20.3 days).
Average UV index in December
Capistrano Beach, CA
- Average UV index in December: 4
The months with the highest UV index are 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
Capistrano Beach, CA
- Average cloud cover in December: 26
The months with the most cloud cover are March and May (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in December
Capistrano Beach, 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).
Capistrano Beach, California, USA
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