September weather forecast
East Port Orchard, WA

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Weather in September

September, the first month of the autumn in East Port Orchard, is still a pleasant month, with an average temperature fluctuating between 50.9°F (10.5°C) and 70°F (21.1°C).

Temperature

With the commencement of September, East Port Orchard records a moderate temperature decline, with the average high easing from August's warm 77.2°F (25.1°C) to a pleasant 70°F (21.1°C). During the month of September, the temperature generally drops to a low average of 50.9°F (10.5°C).

Humidity

In East Port Orchard, the average relative humidity in September is 75%.

Rainfall

In East Port Orchard, during September, the rain falls for 9.9 days and regularly aggregates up to 0.59" (15mm) of precipitation. In East Port Orchard, during the entire year, the rain falls for 138.9 days and collects up to 12.24" (311mm) of precipitation.

Snowfall

In East Port Orchard, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 32min.
On the first day of September in East Port Orchard, sunrise is at 6:30 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:51 pm PDT.

Sunshine

In East Port Orchard, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What are September temperatures in East Port Orchard?

The high-temperature, in September, in East Port Orchard, records 70°F (21.1°C), while the low-temperature is 50.9°F (10.5°C).

What is the average humidity in September in East Port Orchard?

In September, the average relative humidity in East Port Orchard, Washington, is 75%.

How much does it rain in East Port Orchard in September?

In East Port Orchard, in September, during 9.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

When it does not snow in East Port Orchard?

April through October are months without snowfall in East Port Orchard.

How many hours of daylight does East Port Orchard have in September?

In September, the average day length in East Port Orchard, Washington, is 12h and 32min.

What time are sunrise and sunset in September in East Port Orchard?

On the first day of September in East Port Orchard, Washington, sunrise is at 6:30 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:51 pm PDT.

How many hours of sunshine does East Port Orchard have in September?

In September, the average sunshine duration is 9.3h.

What is the UV index reading in September in East Port Orchard?

The average daily maximum UV index in September in East Port Orchard is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
East Port Orchard, WA

Average temperature in September - East Port Orchard, WA
  • Average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).

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Average pressure in September
East Port Orchard, WA

Average pressure in September - East Port Orchard, WA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in September
East Port Orchard, WA

Average wind speed in September - East Port Orchard, WA
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

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Average humidity in September
East Port Orchard, WA

Average humidity in September - East Port Orchard, WA
  • Average humidity in September: 75%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
East Port Orchard, WA

Average rainfall in September - East Port Orchard, WA
  • Average rainfall in September: 0.59"

The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in September
East Port Orchard, WA

Average rainfall days in September - East Port Orchard, WA
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).

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Average snowfall in September
East Port Orchard, WA

Average snowfall in September - East Port Orchard, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
East Port Orchard, WA

Average snowfall days in September - East Port Orchard, WA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
East Port Orchard, WA

Average daylight in September / Average sunshine in September - East Port Orchard, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

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Average sunshine days in September
East Port Orchard, WA

Average sunshine days in September - East Port Orchard, WA
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).

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Average UV index in September
East Port Orchard, WA

Average UV index in September - East Port Orchard, WA
  • 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
East Port Orchard, WA

Average cloud cover in September - East Port Orchard, WA
  • Average cloud cover in September: 34

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
East Port Orchard, WA

Average visibility in September - East Port Orchard, WA
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).

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East Port Orchard, Washington, USA

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