December weather forecastCarmel-by-the-Sea, CA
December
Weather in December
December is the coldest month in Carmel-by-the-Sea, with the lowest temperature recorded at 46.9°F (8.3°C). This month also receives the highest rainfall in the year at 2.48" (63mm), marking the onset of winter. Despite the chilly temperatures, the sea temperature is mild enough to allow certain water activities. Esthetically, December is one of the most beautiful months in Carmel-by-the-Sea, transforming the city into a winter wonderland.Temperature
With average temperatures fluctuating between a high of 57°F (13.9°C) and a low of 46.9°F (8.3°C), December stands out as the coldest month.Humidity
In December, the average relative humidity is 72%.Rainfall
December is the month with the most rainfall. Rain falls for 9.8 days and accumulates 2.48" (63mm) of precipitation.Ocean temperature
In December, the average ocean temperature is 55.6°F (13.1°C).Note: Navigating the 55.6°F (13.1°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:01 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:02 pm PST.
Sunshine
With an average of 5.9h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 3 in December transforms into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Carmel-by-the-Sea, CA
- Average high temperature in December: 57°F
The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in December: 46.9°F
The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).
Average pressure in December
Carmel-by-the-Sea, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.93"Hg).
Average wind speed in December
Carmel-by-the-Sea, CA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Carmel-by-the-Sea, CA
- Average humidity in December: 72%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is November (70%).
Average rainfall in December
Carmel-by-the-Sea, CA
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is December (2.48").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in December
Carmel-by-the-Sea, CA
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (1.3 days).
Average sea temperature in December
Carmel-by-the-Sea, CA
- Average sea temperature in December: 55.6°F
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight in December /
Average sunshine in December
Carmel-by-the-Sea, CA
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Carmel-by-the-Sea, CA
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in December
Carmel-by-the-Sea, CA
- Average UV index in December: 3
The months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Carmel-by-the-Sea, CA
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Carmel-by-the-Sea, 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).
