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 sea temperature 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
The temperature hits its lowest levels in February and December, recording an average high-temperature of 63°F (17.2°C).Humidity
The average relative humidity in December in Coronado is 63%.Rainfall
December is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.81" (46mm) of precipitation.Ocean temperature
In Coronado, the average seawater temperature in December is 60.4°F (15.8°C).Note: Swimming in water with a temperature of 60.4°F (15.8°C) is not a pleasurable experience for the majority. As the temperature falls below 69.8°F (21°C), it becomes increasingly hard to control one's breathing.
Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year in Coronado.On the first day of the month, sunrise is at 6:33 am and sunset at 4:42 pm. On the last day of December, sunrise is at 6:50 am and sunset at 4:53 pm PST.
Sunshine
The month with the least sunshine in Coronado is December, with an average of 6.7h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during December morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What time of the year is the coldest in Coronado?
What are the temperatures in Coronado in December?
What is the average humidity in December in Coronado?
What is the rainiest month in Coronado?
How much does it rain in Coronado in December?
What is the ocean temperature in December in Coronado?
What is the month with the shortest days in Coronado?
What is the average length of the day in December in Coronado?
What time are sunrise and sunset in December in Coronado?
What is the month with the least sunshine in Coronado?
How many hours of sunshine does Coronado have in December?
What is the month with the lowest UV index in Coronado?
What is the UV index intensity in December in Coronado?
Average temperature in December
Coronado, CA
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (75.6°F).
The months with the lowest average high temperature are February and December (63°F).
- Average low temperature in December: 53.6°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is February (53.1°F).
Average pressure in December
Coronado, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).
Average wind speed in December
Coronado, CA
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is October (5.5mph).
Average humidity in December
Coronado, CA
- Average humidity in December: 63%
The month with the highest relative humidity is June (76%).
The months with the lowest relative humidity are January and November (61%).
Average rainfall in December
Coronado, CA
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in December
Coronado, CA
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is June (2.8 days).
Average sea temperature in December
Coronado, CA
- Average sea temperature in December: 60.4°F
The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).
Average daylight in December /
Average sunshine in December
Coronado, 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 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Coronado, CA
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (20.1 days).
Average UV index in December
Coronado, 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
Coronado, CA
- Average cloud cover in December: 24
The months with the most cloud cover are March, May and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Coronado, 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).
Coronado, California, USA
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