December weather forecast
Bayview, CA

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Weather in December

The first month of the winter, December, is still a cool month in Bayview, California, with an average temperature fluctuating between 52.9°F (11.6°C) and 43.7°F (6.5°C).

Temperature

Bayview experiences the lowest of its temperatures in February and December, when the average high-temperatures rise to 52.9°F (11.6°C).

Humidity

In December, the average relative humidity is 78%.

Rainfall

The month with the most rainfall is December, when the rain falls for 10.8 days and typically aggregates up to 1.73" (44mm) of precipitation.

Snowfall

In Bayview, snow does not fall in January, March through December.

Daylight

December has the shortest days of the year in Bayview, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:22 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:59 pm PST.

Sunshine

December has the least sunshine of the year, with an average of 5.2h of sunshine.

UV index

The months with the lowest UV index in Bayview are January through March, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. 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. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Frequently asked questions

What is the coldest time of year in Bayview?

February and December, with an average high-temperature of 52.9°F (11.6°C), are the coldest months.

What is the temperature in December in Bayview?

The average high-temperature and low-temperature during December are 52.9°F (11.6°C) and 43.7°F (6.5°C) respectively.

What is the average humidity in December in Bayview?

In Bayview, California, the average relative humidity in December is 78%.

What is the wettest month in Bayview?

The month with the most rainfall in Bayview, California, is December, when the rain falls for 10.8 days and typically aggregates up to 1.73" (44mm) of precipitation.

How much does it rain in Bayview in December?

In Bayview, California, in December, it is raining for 10.8 days, with typically 1.73" (44mm) of accumulated precipitation.

When it does not snow in Bayview?

In Bayview, snow does not fall in January, March through December.

What is the month with the shortest days in Bayview?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Bayview, California.

How many hours of daylight does Bayview have in December?

In Bayview, California, the average day length in December is 9h and 19min.

When are sunrise and sunset in December in Bayview?

On the first day of December in Bayview, California, sunrise is at 7:22 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:59 pm PST.

What is the month with the least sunshine in Bayview?

With an average of 5.2h of sunshine, December has the least sunshine of the year in Bayview, California.

How many hours of sunshine does Bayview have in December?

In December, the average sunshine duration in Bayview is 5.2h.

What are the months with the lowest UV index in Bayview?

January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Bayview.

What is the UV index reading in December in Bayview?

The average daily maximum UV index in December in Bayview is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bayview, CA

Average temperature in December - Bayview, CA
  • Average high temperature in December: 52.9°F

The warmest month (with the highest average high temperature) is August (68.4°F).
The months with the lowest average high temperature are February and December (52.9°F).

  • Average low temperature in December: 43.7°F

The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (42.4°F).

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Average pressure in December
Bayview, CA

Average pressure in December - Bayview, CA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

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Average wind speed in December
Bayview, CA

Average wind speed in December - Bayview, CA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in December
Bayview, CA

Average humidity in December - Bayview, CA
  • Average humidity in December: 78%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in December
Bayview, CA

Average rainfall in December - Bayview, CA
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is December (1.73").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in December
Bayview, CA

Average rainfall days in December - Bayview, CA
  • Average rainfall days in December: 10.8 days

The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.7 days).

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Average snowfall in December
Bayview, CA

Average snowfall in December - Bayview, CA
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Bayview, CA

Average snowfall days in December - Bayview, CA
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Bayview, CA

Average daylight in December / Average sunshine in December - Bayview, CA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 5h and 1min

The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in December
Bayview, CA

Average sunshine days in December - Bayview, CA
  • Average sunshine days in December: 18.9 days

The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is March (17.9 days).

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Average UV index in December
Bayview, CA

Average UV index in December - Bayview, CA
  • Average UV index in December: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in December
Bayview, CA

Average cloud cover in December - Bayview, CA
  • Average cloud cover in December: 43

The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 16).

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Average visibility in December
Bayview, CA

Average visibility in December - Bayview, CA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

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Bayview, California, USA

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