Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Naselle experiences a recorded average high-temperature of a still enjoyable 64°F (17.8°C) in September, closely aligned with August's 66°F (18.9°C). Naselle cools down to an average low-temperature of 53.2°F (11.8°C) throughout the month of September.Humidity
In Naselle, the average relative humidity in September is 83%.Rainfall
In Naselle, in September, it is raining for 10.3 days, with typically 1.57" (40mm) of accumulated precipitation. In Naselle, Washington, during the entire year, the rain falls for 189.2 days and collects up to 39.25" (997mm) of precipitation.Snowfall
In Naselle, 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 6:36 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Naselle, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Naselle in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Naselle have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Naselle, WA
- Average high temperature in September: 64°F
The warmest month (with the highest average high temperature) is August (66°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in September
Naselle, WA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in September
Naselle, WA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Naselle, WA
- Average humidity in September: 83%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is May (81%).
Average rainfall in September
Naselle, WA
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is December (6.46").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in September
Naselle, WA
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in September
Naselle, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Naselle, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Naselle, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Naselle, WA
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Naselle, WA
- Average UV index in September: 4
The month with the highest UV index is 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
Naselle, WA
- Average cloud cover in September: 37
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Naselle, WA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Naselle, Washington, USA
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