December weather forecast
Dillon Beach, CA

Weather in December

The first month of the winter, December, is also a moderate month in Dillon Beach, California, with an average temperature varying between 55.4°F (13°C) and 45.3°F (7.4°C).

Temperature

December is the coldest month, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C).

Humidity

In December, the average relative humidity in Dillon Beach is 75%.

Rainfall

In Dillon Beach, during December, the rain falls for 12 days and regularly aggregates up to 3.54" (90mm) of precipitation. Throughout the year, in Dillon Beach, there are 83.1 rainfall days, and 20" (508mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 34min of daylight.
On the first day of the month, sunrise is at 7:09 am and sunset at 4:52 pm. On the last day of December, in Dillon Beach, sunrise is at 7:28 am and sunset at 5:01 pm PST.

Sunshine

With an average of 5.7h of sunshine, December has the least sunshine of the year in Dillon Beach.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 3 in December interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the coldest month in Dillon Beach?

December is the coldest month, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C).

What is the temperature in December in Dillon Beach?

The average high-temperature, in December, in Dillon Beach, is 55.4°F (13°C), while the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in December in Dillon Beach?

In Dillon Beach, California, the average relative humidity in December is 75%.

How many days does it rain in December in Dillon Beach?

In Dillon Beach, in December, it is raining for 12 days, with typically 3.54" (90mm) of accumulated precipitation.

What is the month with the shortest days in Dillon Beach?

December has the shortest days of the year in Dillon Beach, California, with an average of 9h and 34min of daylight.

What is the average length of the day in December in Dillon Beach?

The average day length in December in Dillon Beach, California, is 9h and 34min.

When is the sunrise / sunset in December in Dillon Beach?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:52 pm. On the last day of the month, in Dillon Beach, California, sunrise is at 7:28 am and sunset at 5:01 pm PST.

What is the month with the least sunshine in Dillon Beach?

With an average of 5.7h of sunshine, December has the least sunshine of the year in Dillon Beach.

How many hours of sunshine does Dillon Beach have in December?

The average sunshine duration in December is 5.7h.

What are the months with the lowest UV index in Dillon Beach?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Dillon Beach?

The average daily maximum UV index in December in Dillon Beach is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dillon Beach, CA

Average temperature in December - Dillon Beach, CA
  • Average high temperature in December: 55.4°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in December: 45.3°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

[Resources]

Average pressure in December
Dillon Beach, CA

Average pressure in December - Dillon Beach, CA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.92"Hg).

[Resources]

Average wind speed in December
Dillon Beach, CA

Average wind speed in December - Dillon Beach, CA
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is May (9.9mph).
The calmest month (with the lowest average wind speed) is November (6.7mph).

[Resources]

Average humidity in December
Dillon Beach, CA

Average humidity in December - Dillon Beach, CA
  • Average humidity in December: 75%

The month with the highest relative humidity is March (78%).
The months with the lowest relative humidity are September and October (71%).

[Resources]

Average rainfall in December
Dillon Beach, CA

Average rainfall in December - Dillon Beach, CA
  • Average rainfall in December: 3.54"

The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is August (0.04").

[Resources]

Average rainfall days in December
Dillon Beach, CA

Average rainfall days in December - Dillon Beach, CA
  • Average rainfall days in December: 12 days

The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (1.1 days).

[Resources]

Average daylight in December /
Average sunshine in December
Dillon Beach, CA

Average daylight in December / Average sunshine in December - Dillon Beach, CA
  • Average daylight in December: 9h and 34min

The month with the longest days is June (Average daylight: 14h and 47min).
The month with the shortest days is December (Average daylight: 9h and 34min).

  • Average sunshine in December: 5h and 42min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

[Resources]

Average sunshine days in December
Dillon Beach, CA

Average sunshine days in December - Dillon Beach, CA
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (14.8 days).

[Resources]

Average UV index in December
Dillon Beach, CA

Average UV index in December - Dillon Beach, CA
  • Average UV index in December: 3

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in December
Dillon Beach, CA

Average cloud cover in December - Dillon Beach, CA
  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 12).

[Resources]

Average visibility in December
Dillon Beach, CA

Average visibility in December - Dillon 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location