September weather forecast and climate
Malibu, CA

Weather in September

The first month of the autumn, September, is still a warm month in Malibu, California, with average temperature ranging between min 63.1°F (17.3°C) and max 78.3°F (25.7°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still moderately hot 78.3°F (25.7°C). In September, in Malibu, California, the average low-temperature is 63.1°F (17.3°C).

Humidity

The average relative humidity in September is 61%.

Rainfall

In Malibu, in September, it is raining for 2.8 days, with typically 0.16" (4mm) of accumulated precipitation. In Malibu, during the entire year, the rain falls for 52.4 days and collects up to 9.96" (253mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Malibu is 65.1°F (18.4°C).
Note: For swimming, a surface water temperature of 65.1°F (18.4°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in September is 12.4h.

Sunshine

In Malibu, the average sunshine in September is 10.9h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Malibu, California. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 temperature in September in Malibu?

In Malibu, in September, the average high-temperature is 78.3°F (25.7°C), and the average low-temperature is 63.1°F (17.3°C).

What is the average humidity in September in Malibu?

In Malibu, the average relative humidity in September is 61%.

How much does it rain in Malibu in September?

In Malibu, in September, it is raining for 2.8 days, with typically 0.16" (4mm) of accumulated precipitation.

What is the ocean temperature in September in Malibu?

In Malibu, the average seawater temperature in September is 65.1°F (18.4°C). For most, swimming in 65.1°F (18.4°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).

How many hours of daylight does Malibu have in September?

The average length of the day in September in Malibu is 12.4h.

How many hours of sunshine does Malibu have in September?

In September, the average sunshine in Malibu, California, is 10.9h.

What is the month with the highest UV index in Malibu?

Months with the highest UV index in Malibu are June through September, with an average maximum UV index of 6.

What is the UV index intensity in September in Malibu?

In Malibu, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Malibu, CA

Average temperature in September - Malibu, CA
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is August (64°F).
The coldest month (with the lowest average low temperature) is February (49.3°F).

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Average pressure in September
Malibu, CA

Average pressure in September - Malibu, CA
  • Average pressure in September: 29.9"

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 September
Malibu, CA

Average wind speed in September - Malibu, CA
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are April and December (6.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.7mph).

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Average humidity in September
Malibu, CA

Average humidity in September - Malibu, CA
  • Average humidity in September: 61%

The month with the highest relative humidity is June (69%).
The month with the lowest relative humidity is November (53%).

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Average rainfall in September
Malibu, CA

Average rainfall in September - Malibu, CA
  • Average rainfall in September: 0.16"

The wettest months (with the highest rainfall) are January and February (2.09").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Malibu, CA

Average rainfall days in September - Malibu, CA
  • Average rainfall days in September: 2.8 days

The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is August (1.9 days).

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Average sea temperature in September
Malibu, CA

Average sea temperature in September - Malibu, CA
  • Average sea temperature in September: 65.2°F

The best month for swimming (with the highest average sea temperature) is August (66.1°F).
The coldest month (with the lowest average sea temperature) is March (57.7°F).

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Average daylight in September /
Average sunshine in September
Malibu, CA

Average daylight in September / Average sunshine in September - Malibu, CA
  • Average daylight in September: 12.4h

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 September: 10.9h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

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Average sunshine days in September
Malibu, CA

Average sunshine days in September - Malibu, CA
  • Average sunshine days in September: 23.7 days

The month with the most sunshine days is October (26.4 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in September
Malibu, CA

Average UV index in September - Malibu, CA
  • Average UV index in September: 6

Months with the highest UV index are June, 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 September
Malibu, CA

Average cloud cover in September - Malibu, CA
  • Average cloud cover in September: 8

The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in September
Malibu, CA

Average visibility in September - Malibu, CA
  • Average visibility in September: 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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