September weather forecast
Skokomish, WA

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Weather in September

September, the first month of the autumn in Skokomish, is still a pleasant month, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 68.9°F (20.5°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a moderately hot 76.6°F (24.8°C) in August to a pleasant 68.9°F (20.5°C). Skokomish records an average low of 47.5°F (8.6°C) throughout the nights in September.

Humidity

The average relative humidity in September is 78%.

Rainfall

In Skokomish, in September, it is raining for 12.3 days, with typically 1.85" (47mm) of accumulated precipitation. In Skokomish, during the entire year, the rain falls for 185.4 days and collects up to 42.87" (1089mm) of precipitation.

Snowfall

In Skokomish, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 6:32 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:53 pm PDT.

Sunshine

In Skokomish, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In September, the average high-temperature and low-temperature are 68.9°F (20.5°C) and 47.5°F (8.6°C) respectively.

What is the average humidity in September?

In Skokomish, the average relative humidity in September is 78%.

How much does it rain in September?

In Skokomish, during September, the rain falls for 12.3 days and regularly aggregates up to 1.85" (47mm) of precipitation.

When it does not snow?

April through October are months without snowfall in Skokomish.

How many hours of daylight does Skokomish have in September?

In Skokomish, the average day length in September is 12h and 32min.

What time are sunrise and sunset in September in Skokomish?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:53 pm PDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September in Skokomish?

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Skokomish, WA

Average temperature in September - Skokomish, WA
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in September: 47.5°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).

Average pressure in September
Skokomish, WA

Average pressure in September - Skokomish, WA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in September
Skokomish, WA

Average wind speed in September - Skokomish, WA
  • 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 September (3.4mph).

Average humidity in September
Skokomish, WA

Average humidity in September - Skokomish, WA
  • Average humidity in September: 78%

The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).

Average rainfall in September
Skokomish, WA

Average rainfall in September - Skokomish, WA
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in September
Skokomish, WA

Average rainfall days in September - Skokomish, WA
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in September
Skokomish, WA

Average snowfall in September - Skokomish, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Skokomish, WA

Average snowfall days in September - Skokomish, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Skokomish, WA

Average daylight in September / Average sunshine in September - Skokomish, WA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in September
Skokomish, WA

Average sunshine days in September - Skokomish, WA
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).

Average UV index in September
Skokomish, WA

Average UV index in September - Skokomish, WA
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Skokomish, WA

Average cloud cover in September - Skokomish, WA
  • Average cloud cover in September: 39

The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in September
Skokomish, WA

Average visibility in September - Skokomish, WA
  • Average visibility in September: 5mi

The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).

Skokomish, Washington, USA

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