September weather forecast
Newport, WA

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Weather in September

September, the first month of the autumn in Newport, is also an agreeable month, with an average temperature varying between 70.7°F (21.5°C) and 43.7°F (6.5°C).

Temperature

The average high-temperature drops in September, from August's moderately hot 82°F (27.8°C) to an agreeable 70.7°F (21.5°C). Newport reports a substantial plunge from daytime highs during the nights of September, with an average low-temperature of 43.7°F (6.5°C).

Humidity

The average relative humidity in September in Newport, Washington, is 59%.

Rainfall

In September, in Newport, the rain falls for 8.7 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. Throughout the year, there are 125.5 rainfall days, and 19.92" (506mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows in Newport. Throughout September, in the average 0.2 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, in Newport, there are 81.4 snowfall days, and 58.11" (1476mm) of snow is accumulated.

Daylight

In Newport, Washington, the average length of the day in September is 12h and 34min.
On the first day of the month, sunrise is at 6:07 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:28 pm PDT.

Sunshine

In September, the average sunshine is 10.1h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the usual temperature for Newport in September?

The average high-temperature and low-temperature during September are 70.7°F (21.5°C) and 43.7°F (6.5°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 82.4°F (28°C).

What is the average humidity in September in Newport?

The average relative humidity in September in Newport, Washington, is 59%.

How much does it rain in Newport in September?

In Newport, in September, during 8.7 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When does it start snowing in Newport?

September is the first month it typically snows in Newport, Washington. Throughout September, in the average 0.2 snowfall days, it receives 0.43" (11mm) of snow.

How many hours of daylight does Newport have in September?

In Newport, Washington, the average day length in September is 12h and 34min.

What time are sunrise and sunset in September in Newport?

On the first day of September in Newport, Washington, sunrise is at 6:07 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:28 pm PDT.

How long on average sun shines in September in Newport?

In September, the average sunshine duration is 10.1h.

What is the UV index reading in September in Newport?

In Newport, Washington, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Newport, WA

Average temperature in September - Newport, WA
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in September: 43.7°F

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in September
Newport, WA

Average pressure in September - Newport, WA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in September
Newport, WA

Average wind speed in September - Newport, WA
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in September
Newport, WA

Average humidity in September - Newport, WA
  • Average humidity in September: 59%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in September
Newport, WA

Average rainfall in September - Newport, WA
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is January (2.64").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in September
Newport, WA

Average rainfall days in September - Newport, WA
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is April (16.7 days).
The month with the least rainy days is August (5.8 days).

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Average snowfall in September
Newport, WA

Average snowfall in September - Newport, WA
  • Average snowfall in September: 0.43"

The month with the highest snowfall is January (16.26").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Newport, WA

Average snowfall days in September - Newport, WA
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (17.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Newport, WA
  • Average daylight in September: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Newport, WA

Average sunshine days in September - Newport, WA
  • Average sunshine days in September: 19.7 days

The month with the most sunshine days is July (23.1 days).
The month with the least sunshine days is March (9.2 days).

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Average UV index in September
Newport, WA

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).

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Average cloud cover in September
Newport, WA

Average cloud cover in September - Newport, WA
  • Average cloud cover in September: 23

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in September
Newport, WA

Average visibility in September - Newport, 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 and December (3mi).

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Newport, Washington, USA

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