September weather forecast and climate
Oxnard, CA

Light waves on the soft sand and rocks of the scenic Ocean Beach in Oxnard, California
Light waves on the soft sand and rocks of the scenic Ocean Beach in Oxnard, California

Weather in September

The first month of the autumn, September, is also a moderately hot month in Oxnard, California, with average temperature fluctuating between 73.4°F (23°C) and 63°F (17.2°C).

Temperature

The warmest months are August and September, with an average high-temperature of 73.4°F (23°C).

Humidity

In Oxnard, the average relative humidity in September is 65%.

Rainfall

In Oxnard, during September, the rain falls for 3 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, in Oxnard, there are 46.5 rainfall days, and 8.31" (211mm) of precipitation is accumulated.

Ocean temperature

In Oxnard, the average seawater temperature in September is 63.3°F (17.4°C).
Note: For swimming, a surface water temperature of 63.3°F (17.4°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

In Oxnard, the average length of the day is 12.4h.

Sunshine

The average sunshine in Oxnard is 10.9h.

UV index

The average daily maximum UV index in Oxnard is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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 are the warmest months in Oxnard?

Warmest months are August and September, with an average high-temperature of 73.4°F (23°C).

What is the temperature in September in Oxnard?

The average high-temperature, in September, is 73.4°F (23°C), while the average low-temperature is 63°F (17.2°C).

What is the average humidity in September in Oxnard?

In Oxnard, California, the average relative humidity in September is 65%.

How many days does it rain in September in Oxnard?

In September, in Oxnard, the rain falls for 3 days. Throughout September, 0.16" (4mm) of precipitation is accumulated.

What is the ocean temperature in September in Oxnard?

In September, the average ocean temperature in Oxnard is 63.3°F (17.4°C). For most, swimming in 63.3°F (17.4°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).

What is the average length of the day in September in Oxnard?

In Oxnard, the average length of the day in September is 12.4h.

How many hours of sunshine does Oxnard have in September?

The average sunshine in September is 10.9h.

What is the UV index intensity in September in Oxnard?

In Oxnard, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Oxnard, CA

Average temperature in September - Oxnard, CA
  • Average high temperature in September: 73.4°F

The warmest months (with the highest average high temperature) are August and September (73.4°F).
The month with the lowest average high temperature is February (59°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is September (63°F).
The coldest months (with the lowest average low temperature) are February and December (50.5°F).

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Average pressure in September
Oxnard, CA

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

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is September (29.9").

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Average wind speed in September
Oxnard, CA

Average wind speed in September - Oxnard, CA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Oxnard, CA

Average humidity in September - Oxnard, CA
  • Average humidity in September: 65%

The month with the highest relative humidity is June (72%).
The month with the lowest relative humidity is November (57%).

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Average rainfall in September
Oxnard, CA

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

The wettest month (with the highest rainfall) is January (1.85").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Oxnard, CA

Average rainfall days in September - Oxnard, CA
  • Average rainfall days in September: 3 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is August (1.3 days).

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Average sea temperature in September
Oxnard, CA

Average sea temperature in September - Oxnard, CA
  • Average sea temperature in September: 63.3°F

The best month for swimming (with the highest average sea temperature) is August (64.1°F).
The coldest month (with the lowest average sea temperature) is April (56.7°F).

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

Average daylight in September / Average sunshine in September - Oxnard, 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, July and August (Average sunshine: 12h).
Months with the least sunshine are January and February (Average sunshine: 6.8).

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Average sunshine days in September
Oxnard, CA

Average sunshine days in September - Oxnard, CA
  • Average sunshine days in September: 24.1 days

The month with the most sunshine days is October (27.2 days).
The month with the least sunshine days is February (21.7 days).

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Average UV index in September
Oxnard, CA

Average UV index in September - Oxnard, CA
  • Average UV index in September: 5

The month with the highest UV index is August (UV index 6).
Months with the lowest UV index are January, February, March, April, November and December (UV index 4).

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Average cloud cover in September
Oxnard, CA

Average cloud cover in September - Oxnard, CA
  • Average cloud cover in September: 7

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
Oxnard, CA

Average visibility in September - Oxnard, 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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