September weather forecast
Torrance, CA

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Weather in September

September, the first month of the autumn in Torrance, is also a moderately hot month, with an average temperature varying between 64.2°F (17.9°C) and 76.1°F (24.5°C).

Temperature

The months of August and September are noted for their peak temperatures, with an average high-temperature of 76.1°F (24.5°C).

Humidity

The average relative humidity in September in Torrance is 68%.

Rainfall

In September, in Torrance, the rain falls for 3.9 days. Throughout September, 0.28" (7mm) of precipitation is accumulated. Throughout the year, there are 57.4 rainfall days, and 7.68" (195mm) of precipitation is accumulated.

Daylight

In Torrance, 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, sunrise is at 6:47 am and sunset at 6:38 pm PDT.

Sunshine

In September, the average sunshine is 10.5h.

UV index

July through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 in September translates into these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What part of the year is the hottest in Torrance?

Torrance experiences its warmest period in August and September, averaging a high-temperature of 76.1°F (24.5°C).

What is the temperature in September in Torrance?

The average high-temperature, in September, in Torrance, is 76.1°F (24.5°C), while the average low-temperature is 64.2°F (17.9°C).

What is the average humidity in September in Torrance?

The average relative humidity in September in Torrance, California, is 68%.

How much does it rain in Torrance in September?

In Torrance, California, in September, during 3.9 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

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

In September, the average day length in Torrance, California, is 12h and 22min.

What time are sunrise and sunset in September in Torrance?

On the first day of September, 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 many hours of sunshine does Torrance have in September?

The average sunshine duration in September in Torrance, California, is 10.5h.

What are the months with the highest UV index in Torrance?

The months with the highest UV index in Torrance, California, are July through September, with an average maximum UV index of 6.

What is the UV index reading in September in Torrance?

In September, the average daily maximum UV index in Torrance is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Torrance, CA

Average temperature in September - Torrance, CA
  • Average high temperature in September: 76.1°F

The warmest months (with the highest average high temperature) are August and September (76.1°F).
The month with the lowest average high temperature is December (62.4°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (52.5°F).

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Average pressure in September
Torrance, CA

Average pressure in September - Torrance, 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
Torrance, CA

Average wind speed in September - Torrance, CA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).

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Average humidity in September
Torrance, CA

Average humidity in September - Torrance, CA
  • Average humidity in September: 68%

The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (58%).

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Average rainfall in September
Torrance, CA

Average rainfall in September - Torrance, CA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is January (1.46").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in September
Torrance, CA

Average rainfall days in September - Torrance, CA
  • Average rainfall days in September: 3.9 days

The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is August (3.3 days).

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

Average daylight in September / Average sunshine in September - Torrance, 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: 9h and 54min).

  • Average sunshine in September: 10h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Torrance, CA

Average sunshine days in September - Torrance, CA
  • Average sunshine days in September: 21.4 days

The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is June (17.8 days).

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Average UV index in September
Torrance, CA

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

The months with the highest UV index are July, August and September (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
Torrance, CA

Average cloud cover in September - Torrance, CA
  • Average cloud cover in September: 11

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

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Average visibility in September
Torrance, CA

Average visibility in September - Torrance, 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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Torrance, California, USA

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