September weather forecast
Seiad Valley, CA

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Weather in September

September, the first month of the autumn in Seiad Valley, is still a warm month, with an average temperature fluctuating between 44.8°F (7.1°C) and 76.5°F (24.7°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's moderately hot 84.4°F (29.1°C) to a still warm 76.5°F (24.7°C). Throughout September nights, a significant departure from daytime temperatures, with an average low of 44.8°F (7.1°C), is recognized in Seiad Valley.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Seiad Valley, during September, the rain falls for 4.4 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 92.5 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:55 pm PDT.

Sunshine

In September, the average sunshine is 10.5h.

UV index

The average daily maximum UV index in September in Seiad Valley, California, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 4 during September translates into the following guidance:
Ensure safety - Sun damage prevention is strongly urged. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the usual temperature for Seiad Valley in September?

September temperatures vary between a high-temperature of 76.5°F (24.7°C) and a low-temperature of 44.8°F (7.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in September in Seiad Valley?

The average relative humidity in September in Seiad Valley is 64%.

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

In Seiad Valley, in September, during 4.4 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When it does not snow in Seiad Valley?

June through September are months without snowfall in Seiad Valley, California.

Does it snow in Seiad Valley in September?

In Seiad Valley, California, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Seiad Valley have in September?

In September, the average day length is 12h and 28min.

When is the sunrise / sunset in September in Seiad Valley?

On the first day of September in Seiad Valley, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm PDT.

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

In September, the average sunshine duration is 10.5h.

How high is the UV index in September in Seiad Valley?

In Seiad Valley, California, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average wind speed gusts
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Seiad Valley, CA

Average temperature in September - Seiad Valley, CA
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is August (84.4°F).
The month with the lowest average high temperature is December (43.5°F).

  • Average low temperature in September: 44.8°F

The months with the highest average low temperature are July and August (49.5°F).
The coldest month (with the lowest average low temperature) is December (28.9°F).

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Average pressure in September
Seiad Valley, CA

Average pressure in September - Seiad Valley, CA
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).

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Average wind speed in September
Seiad Valley, CA

Average wind speed in September - Seiad Valley, CA
  • Average wind speed in September: 3.4mph

The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in September
Seiad Valley, CA

Average humidity in September - Seiad Valley, CA
  • Average humidity in September: 64%

The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in September
Seiad Valley, CA

Average rainfall in September - Seiad Valley, CA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is January (2.01").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in September
Seiad Valley, CA

Average rainfall days in September - Seiad Valley, CA
  • Average rainfall days in September: 4.4 days

The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in September
Seiad Valley, CA

Average snowfall in September - Seiad Valley, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (6.3").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Seiad Valley, CA

Average snowfall days in September - Seiad Valley, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Seiad Valley, CA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 10h and 3min

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: 5h and 0min).

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Average sunshine days in September
Seiad Valley, CA

Average sunshine days in September - Seiad Valley, CA
  • Average sunshine days in September: 25 days

The months with the most sunshine days are July and August (25.3 days).
The month with the least sunshine days is March (15 days).

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Average UV index in September
Seiad Valley, CA

Average UV index in September - Seiad Valley, CA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Seiad Valley, CA

Average cloud cover in September - Seiad Valley, CA
  • Average cloud cover in September: 22

The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in September
Seiad Valley, CA

Average visibility in September - Seiad Valley, CA
  • Average visibility in September: 6mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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Seiad Valley, California, USA

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