December weather forecast and climate
Manhattan Beach, CA

Weather in December

December, the first month of the winter, in Manhattan Beach, is also an enjoyable month, with average temperature varying between 52.7°F (11.5°C) and 62.8°F (17.1°C).

Temperature

With an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 52.7°F (11.5°C), December is the coldest month.

Humidity

The average relative humidity in December is 59%.

Rainfall

In Manhattan Beach, during 5.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 54.5 rainfall days, and 7.91" (201mm) of precipitation is accumulated.

Ocean temperature

In Manhattan Beach, the average water temperature is 60.4°F (15.8°C).
Note: Swimming in 60.4°F (15.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year.

Sunshine

With an average of 6.6h of sunshine, December has the least sunshine of the year in Manhattan Beach, California.

UV index

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for 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.
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FAQ

What is the coldest month in Manhattan Beach?

December is the coldest month, with an average high-temperature of 62.8°F (17.1°C) and an average low-temperature of 52.7°F (11.5°C).

What is the temperature in December in Manhattan Beach?

In December, in Manhattan Beach, the average high-temperature is 62.8°F (17.1°C), and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in December in Manhattan Beach?

In Manhattan Beach, the average relative humidity in December is 59%.

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

In Manhattan Beach, California, in December, it is raining for 5.7 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the ocean temperature in December in Manhattan Beach?

In Manhattan Beach, California, the average seawater temperature in December is 60.4°F (15.8°C). For most, swimming in 60.4°F (15.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

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

With an average of 9.9h of daylight, December has the shortest days of the year in Manhattan Beach, California.

How many hours of daylight does Manhattan Beach have in December?

In December, the average length of the day in Manhattan Beach is 9.9h.

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

The month with the least sunshine in Manhattan Beach, California, is December, with an average of 6.6h of sunshine.

How long on average sun shines in December in Manhattan Beach?

The average sunshine in December in Manhattan Beach, California, is 6.6h.

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

Months with the lowest UV index in Manhattan Beach, California, are January through March, November and December, with an average maximum UV index of 4.

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

In Manhattan Beach, the average daily maximum UV index in December is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in December
Manhattan Beach, CA

Average temperature in December - Manhattan Beach, CA
  • Average high temperature in December: 62.8°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in December: 52.7°F

Months with the highest average low temperature are August and September (64.2°F).
The coldest month (with the lowest average low temperature) is February (52.2°F).

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Average pressure in December
Manhattan Beach, CA

Average pressure in December - Manhattan Beach, CA
  • Average pressure in December: 30.07"

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are June and September (29.9").

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Average wind speed in December
Manhattan Beach, CA

Average wind speed in December - Manhattan Beach, CA
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

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Average humidity in December
Manhattan Beach, CA

Average humidity in December - Manhattan Beach, CA
  • Average humidity in December: 59%

The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (57%).

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Average rainfall in December
Manhattan Beach, CA

Average rainfall in December - Manhattan Beach, CA
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in December
Manhattan Beach, CA

Average rainfall days in December - Manhattan Beach, CA
  • Average rainfall days in December: 5.7 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (3 days).

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Average sea temperature in December
Manhattan Beach, CA

Average sea temperature in December - Manhattan Beach, CA
  • Average sea temperature in December: 60.4°F

The best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).

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

Average daylight in December / Average sunshine in December - Manhattan Beach, CA
  • Average daylight in December: 9.9h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6.6h

The month with the most sunshine is August (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in December
Manhattan Beach, CA

Average sunshine days in December - Manhattan Beach, CA
  • Average sunshine days in December: 23.5 days

Months with the most sunshine days are January and October (24.9 days).
The month with the least sunshine days is June (19.6 days).

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Average UV index in December
Manhattan Beach, CA

Average UV index in December - Manhattan Beach, CA
  • Average UV index in December: 4

Months with the highest UV index are July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).

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Average cloud cover in December
Manhattan Beach, CA

Average cloud cover in December - Manhattan Beach, CA
  • Average cloud cover in December: 23

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in December
Manhattan Beach, CA

Average visibility in December - Manhattan Beach, 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).

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