September weather forecast
Scotts Valley, CA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Scotts Valley, California, with an average temperature ranging between min 55.4°F (13°C) and max 74.5°F (23.6°C).

Temperature

The transition into September shows a subtle variation to a still warm 74.5°F (23.6°C) from August's 74.8°F (23.8°C) in the average high-temperature. Scotts Valley, in September, experiences an average temperature of 55.4°F (13°C) at night.

Humidity

In Scotts Valley, California, the average relative humidity in September is 69%.

Rainfall

In Scotts Valley, in September, during 2.9 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 72.5 rainfall days, and 13.58" (345mm) of precipitation is accumulated.

Daylight

In Scotts Valley, California, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:52 pm PDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

The months with the highest UV index are June through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What are September temperatures in Scotts Valley?

The average high-temperature, in September, in Scotts Valley, is 74.5°F (23.6°C), while the average low-temperature is 55.4°F (13°C).

What is the average humidity in September in Scotts Valley?

In September, the average relative humidity in Scotts Valley, California, is 69%.

How many days does it rain in September in Scotts Valley?

In Scotts Valley, in September, during 2.9 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

What is the average length of the day in September in Scotts Valley?

The average day length in September in Scotts Valley is 12h and 24min.

What time are sunrise and sunset in September in Scotts Valley?

On the first day of September, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm PDT.

How long on average sun shines in September in Scotts Valley?

In September, the average sunshine duration in Scotts Valley, California, is 10.9h.

What are the months with the highest UV index in Scotts Valley?

The months with the highest UV index in Scotts Valley, California, are June through October, with an average maximum UV index of 5.

What is the UV index intensity in September in Scotts Valley?

In Scotts Valley, California, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Scotts Valley, CA

Average temperature in September - Scotts Valley, CA
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).

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Average pressure in September
Scotts Valley, CA

Average pressure in September - Scotts Valley, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in September
Scotts Valley, CA

Average wind speed in September - Scotts Valley, CA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Scotts Valley, CA

Average humidity in September - Scotts Valley, CA
  • Average humidity in September: 69%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Scotts Valley, CA

Average rainfall in September - Scotts Valley, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (2.6").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Scotts Valley, CA

Average rainfall days in September - Scotts Valley, CA
  • Average rainfall days in September: 2.9 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in September /
Average sunshine in September
Scotts Valley, CA

Average daylight in September / Average sunshine in September - Scotts Valley, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in September
Scotts Valley, CA

Average sunshine days in September - Scotts Valley, CA
  • Average sunshine days in September: 26 days

The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.5 days).

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Average UV index in September
Scotts Valley, CA

Average UV index in September - Scotts Valley, CA
  • Average UV index in September: 5

The months with the highest UV index are June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in September
Scotts Valley, CA

Average cloud cover in September - Scotts Valley, CA
  • Average cloud cover in September: 14

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 12).

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Average visibility in September
Scotts Valley, CA

Average visibility in September - Scotts Valley, 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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Scotts Valley, California, USA

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