December weather forecast and climate
Bodega Bay, CA

Weather in December

The first month of the winter, December, is still a mild month in Bodega Bay, California, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 55.4°F (13°C).

Temperature

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

Humidity

In December, the average relative humidity is 75%.

Rainfall

In December, in Bodega Bay, the rain falls for 12 days. Throughout December, 3.54" (90mm) of precipitation is accumulated. Throughout the year, there are 83.1 rainfall days, and 20" (508mm) of precipitation is accumulated.

Ocean temperature

In Bodega Bay, the average seawater temperature in December is 54°F (12.2°C).
Note: Swimming in 54°F (12.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

With an average of 9.5h of daylight, December has the shortest days of the year.

Sunshine

The month with the least sunshine in Bodega Bay, California, is December, with an average of 5.7h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the coldest month in Bodega Bay?

December is the coldest month in Bodega Bay, California, 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 Bodega Bay?

In December, in Bodega Bay, the average high-temperature is 55.4°F (13°C), and the average low-temperature is 45.3°F (7.4°C).

What is the average humidity in December in Bodega Bay?

The average relative humidity in December in Bodega Bay, California, is 75%.

How many days does it rain in December in Bodega Bay?

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

What is the ocean temperature in December in Bodega Bay?

In December, the average ocean temperature in Bodega Bay, California, is 54°F (12.2°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Bodega Bay?

December has the shortest days of the year in Bodega Bay, with an average of 9.5h of daylight.

How many hours of daylight does Bodega Bay have in December?

The average length of the day in December in Bodega Bay, California, is 9.5h.

What is the month with the least sunshine in Bodega Bay?

The month with the least sunshine in Bodega Bay is December, with an average of 5.7h of sunshine.

How many hours of sunshine does Bodega Bay have in December?

In Bodega Bay, the average sunshine in December is 5.7h.

What are the months with the lowest UV index in Bodega Bay?

Months with the lowest UV index in Bodega Bay, California, are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in December in Bodega Bay?

In Bodega Bay, California, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Bodega Bay, CA

Average temperature in December - Bodega Bay, 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
Bodega Bay, CA

Average pressure in December - Bodega Bay, CA
  • Average pressure in December: 30.1"

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

[Resources]

Average wind speed in December
Bodega Bay, CA

Average wind speed in December - Bodega Bay, 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
Bodega Bay, CA

Average humidity in December - Bodega Bay, CA
  • Average humidity in December: 75%

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

[Resources]

Average rainfall in December
Bodega Bay, CA

Average rainfall in December - Bodega Bay, 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
Bodega Bay, CA

Average rainfall days in December - Bodega Bay, 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 sea temperature in December
Bodega Bay, CA

Average sea temperature in December - Bodega Bay, CA
  • Average sea temperature in December: 54°F

The best month for swimming (with the highest average sea temperature) is October (56.2°F).
The coldest month (with the lowest average sea temperature) is June (51.6°F).

[Resources]

Average daylight in December /
Average sunshine in December
Bodega Bay, CA

Average daylight in December / Average sunshine in December - Bodega Bay, CA
  • Average daylight in December: 9.5h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in December: 5.7h

Months with the most sunshine are July and August (Average sunshine: 11.7h).
The month with the least sunshine is December (Average sunshine: 5.7h).

[Resources]

Average sunshine days in December
Bodega Bay, CA

Average sunshine days in December - Bodega Bay, 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
Bodega Bay, CA

Average UV index in December - Bodega Bay, CA
  • Average UV index in December: 3

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

[Resources]

Average cloud cover in December
Bodega Bay, CA

Average cloud cover in December - Bodega Bay, 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
Bodega Bay, CA

Average visibility in December - Bodega Bay, CA
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]