September weather forecast and climate
Seiad Valley, CA

Weather in September

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

Temperature

In September, the average high-temperature marginally drops, from 84.4°F (29.1°C) in August, to a still moderately hot 76.5°F (24.7°C). In Seiad Valley, the average low-temperature is 44.8°F (7.1°C).

Humidity

The average relative humidity in September is 64%.

Rainfall

In September, in Seiad Valley, the rain falls for 4.4 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. 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 Seiad Valley is 12.5h.

Sunshine

The average sunshine in Seiad Valley, California, is 10.5h.

UV index

In September, the average daily maximum UV index in Seiad Valley, California, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Seiad Valley?

The average high-temperature, in September, in Seiad Valley, is 76.5°F (24.7°C), while the average low-temperature is 44.8°F (7.1°C).

What is the average humidity in September in Seiad Valley?

In September, the average relative humidity in Seiad Valley, California, is 64%.

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

In Seiad Valley, during September, the rain falls for 4.4 days and regularly aggregates up to 0.43" (11mm) of precipitation.

Does it snow in Seiad Valley in September?

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

When it does not snow in Seiad Valley?

June through September are months without snowfall in Seiad Valley.

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

The average length of the day in September in Seiad Valley is 12.5h.

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

In September, the average sunshine is 10.5h.

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

The average daily maximum UV index in September in Seiad Valley is 4. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

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

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"

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

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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%

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").
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).
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: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 10.5h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
Months with the least sunshine are January and December (Average sunshine: 5).

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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

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).
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

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

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