September weather forecast
Rancho Palos Verdes, CA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Rancho Palos Verdes, California, with an average temperature ranging between max 73.2°F (22.9°C) and min 64.2°F (17.9°C).

Temperature

Rancho Palos Verdes's temperature peaks during August and September, with an average high-temperature of 73.2°F (22.9°C).

Humidity

In Rancho Palos Verdes, the average relative humidity in September is 72%.

Rainfall

In Rancho Palos Verdes, in September, during 3.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Rancho Palos Verdes, during the entire year, the rain falls for 62.1 days and collects up to 8.62" (219mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Rancho Palos Verdes, California, is 66.7°F (19.3°C).
Note: Most people do not find swimming enjoyable in water of 66.7°F (19.3°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Rancho Palos Verdes, California, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, in Rancho Palos Verdes, California, sunrise is at 6:47 am and sunset at 6:38 pm PDT.

Sunshine

The average sunshine in September is 10.4h.

UV index

In Rancho Palos Verdes, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What part of the year is the hottest in Rancho Palos Verdes?

The months of August and September bring the highest temperatures in Rancho Palos Verdes, averaging a high of 73.2°F (22.9°C).

What is the usual temperature for Rancho Palos Verdes in September?

September temperatures in Rancho Palos Verdes vary between a high-temperature of 73.2°F (22.9°C) and a low-temperature of 64.2°F (17.9°C).

What is the average humidity in September in Rancho Palos Verdes?

In Rancho Palos Verdes, the average relative humidity in September is 72%.

How much does it rain in Rancho Palos Verdes in September?

In September, in Rancho Palos Verdes, California, the rain falls for 3.5 days. Throughout September, 0.28" (7mm) of precipitation is accumulated.

What is the ocean temperature in September in Rancho Palos Verdes?

In Rancho Palos Verdes, California, in September, the average water temperature is 66.7°F (19.3°C). For most, swimming in 66.7°F (19.3°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 average length of the day in September in Rancho Palos Verdes?

In September, the average day length in Rancho Palos Verdes is 12h and 22min.

When are sunrise and sunset in September in Rancho Palos Verdes?

On the first day of September in Rancho Palos Verdes, California, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm PDT.

How long on average sun shines in September in Rancho Palos Verdes?

In Rancho Palos Verdes, the average sunshine duration in September is 10.4h.

How high is the UV index in September in Rancho Palos Verdes?

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.

Average temperature in September
Rancho Palos Verdes, CA

Average temperature in September - Rancho Palos Verdes, CA
  • Average high temperature in September: 73.2°F

The warmest months (with the highest average high temperature) are August and September (73.2°F).
The month with the lowest average high temperature is February (61.5°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (53.2°F).

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Average pressure in September
Rancho Palos Verdes, CA

Average pressure in September - Rancho Palos Verdes, CA
  • Average pressure in September: 29.9"Hg

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

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Average wind speed in September
Rancho Palos Verdes, CA

Average wind speed in September - Rancho Palos Verdes, CA
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

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Average humidity in September
Rancho Palos Verdes, CA

Average humidity in September - Rancho Palos Verdes, CA
  • Average humidity in September: 72%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is November (61%).

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Average rainfall in September
Rancho Palos Verdes, CA

Average rainfall in September - Rancho Palos Verdes, CA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is January (1.73").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in September
Rancho Palos Verdes, CA

Average rainfall days in September - Rancho Palos Verdes, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is August (3.1 days).

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Average sea temperature in September
Rancho Palos Verdes, CA

Average sea temperature in September - Rancho Palos Verdes, CA
  • Average sea temperature in September: 66.7°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 September /
Average sunshine in September
Rancho Palos Verdes, CA

Average daylight in September / Average sunshine in September - Rancho Palos Verdes, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Rancho Palos Verdes, CA

Average sunshine days in September - Rancho Palos Verdes, CA
  • Average sunshine days in September: 22.3 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is June (20 days).

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Average UV index in September
Rancho Palos Verdes, CA

Average UV index in September - Rancho Palos Verdes, CA
  • Average UV index in September: 5

The month with the highest UV index is August (UV index 6).
The 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
Rancho Palos Verdes, CA

Average cloud cover in September - Rancho Palos Verdes, CA
  • Average cloud cover in September: 13

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 11).

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Average visibility in September
Rancho Palos Verdes, CA

Average visibility in September - Rancho Palos Verdes, CA
  • Average visibility in September: 6mi

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

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Rancho Palos Verdes, California, USA

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