September weather forecast
Satsop, WA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Satsop, Washington, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 69.6°F (20.9°C).

Temperature

The onset of September results in a small decrease in the average high-temperature, moderately receding from a moderately hot 75.7°F (24.3°C) in August to an agreeable 69.6°F (20.9°C). Satsop observes a substantial disparity between daytime high and the average low-temperature of 46.8°F (8.2°C) during September nights.

Humidity

In September, the average relative humidity in Satsop is 81%.

Rainfall

In Satsop, in September, during 11.1 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 163.5 rainfall days, and 26.65" (677mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Satsop.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:52 pm. On the last day of September, in Satsop, sunrise is at 7:12 am and sunset at 6:54 pm PDT.

Sunshine

The average sunshine in September is 7.8h.

UV index

In Satsop, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Satsop?

The high-temperature, in September, in Satsop, records 69.6°F (20.9°C), while the low-temperature is 46.8°F (8.2°C).

What is the average humidity in September in Satsop?

The average relative humidity in September in Satsop, Washington, is 81%.

How much does it rain in Satsop in September?

In Satsop, in September, it is raining for 11.1 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in Satsop?

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

How many hours of daylight does Satsop have in September?

The average day length in September in Satsop, Washington, is 12h and 32min.

When is the sunrise / sunset in September in Satsop?

On the first day of September in Satsop, Washington, sunrise is at 6:34 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:54 pm PDT.

How many hours of sunshine does Satsop have in September?

In September, the average sunshine duration in Satsop, Washington, is 7.8h.

How high is the UV index in September in Satsop?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Satsop, WA

Average temperature in September - Satsop, WA
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (43°F).

  • Average low temperature in September: 46.8°F

The month with the highest average low temperature is August (49.5°F).
The coldest months (with the lowest average low temperature) are February and December (33.6°F).

Average pressure in September
Satsop, WA

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

The months with the highest atmospheric pressure are January and July (30.07"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in September
Satsop, WA

Average wind speed in September - Satsop, WA
  • Average wind speed in September: 3.7mph

The windiest months (with the highest average wind speed) are January and June (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.7mph).

Average humidity in September
Satsop, WA

Average humidity in September - Satsop, WA
  • Average humidity in September: 81%

The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (75%).

Average rainfall in September
Satsop, WA

Average rainfall in September - Satsop, WA
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is January (4.37").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in September
Satsop, WA

Average rainfall days in September - Satsop, WA
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (5.8 days).

Average snowfall in September
Satsop, WA

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

The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Satsop, WA

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).

Average sunshine days in September
Satsop, WA

Average sunshine days in September - Satsop, WA
  • Average sunshine days in September: 17 days

The month with the most sunshine days is August (22.2 days).
The month with the least sunshine days is March (9.3 days).

Average UV index in September
Satsop, WA

Average UV index in September - Satsop, WA
  • Average UV index in September: 4

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
Satsop, WA

Average cloud cover in September - Satsop, WA
  • Average cloud cover in September: 52

The months with the most cloud cover are January and December (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 43).

Average visibility in September
Satsop, WA

Average visibility in September - Satsop, WA
  • Average visibility in September: 4mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (4mi).
The months with the lowest visibility are November and December (3mi).

Satsop, Washington, USA

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