December weather forecast and climate
Redondo Beach, CA

Weather in December

The first month of the winter, December, is still a comfortable month in Redondo Beach, California, with average temperature fluctuating 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

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

Rainfall

In December, the rain falls for 5.7 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 54.5 rainfall days, and 7.91" (201mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature in Redondo Beach, California, 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

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

Sunshine

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

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 health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. 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 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 Redondo Beach?

December is the coldest month in Redondo Beach, California, 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 average humidity in December in Redondo Beach?

The average relative humidity in December in Redondo Beach is 59%.

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

In Redondo Beach, California, during December, the rain falls for 5.7 days and regularly aggregates up to 1.42" (36mm) of precipitation.

How cold is the water in December in Redondo Beach?

In Redondo Beach, in December, the average water temperature is 60.4°F (15.8°C). 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).

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

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

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

The average length of the day in December is 9.9h.

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

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

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

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

When is the lowest UV index in Redondo Beach?

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

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

In December, the average daily maximum UV index in Redondo Beach, California, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Redondo Beach, CA

Average temperature in December - Redondo 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
Redondo Beach, CA

Average pressure in December - Redondo 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
Redondo Beach, CA

Average wind speed in December - Redondo 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
Redondo Beach, CA

Average humidity in December - Redondo 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
Redondo Beach, CA

Average rainfall in December - Redondo 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
Redondo Beach, CA

Average rainfall days in December - Redondo 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
Redondo Beach, CA

Average sea temperature in December - Redondo 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
Redondo Beach, CA

Average daylight in December / Average sunshine in December - Redondo 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
Redondo Beach, CA

Average sunshine days in December - Redondo 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
Redondo Beach, CA

Average UV index in December - Redondo 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
Redondo Beach, CA

Average cloud cover in December - Redondo 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
Redondo Beach, CA

Average visibility in December - Redondo 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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