September weather forecastWest Beach, WA
September
Weather in September
The first month of the autumn, September, is still a refreshing month in West Beach, Washington, with an average temperature varying between 61.3°F (16.3°C) and 55.6°F (13.1°C).Temperature
September's arrival registers an average high-temperature of a still refreshing 61.3°F (16.3°C), closely aligning with the temperature of the previous month. West Beach's nighttime temperature in September shows a minor descent, with a steady average of 55.6°F (13.1°C).Humidity
The months with the highest humidity are January, August and September, with an average relative humidity of 79%.Rainfall
In West Beach, in September, it is raining for 11.6 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 167.7 rainfall days, and 23.46" (596mm) of precipitation is accumulated.Snowfall
In West Beach, Washington, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:51 pm PDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In West Beach, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
West Beach, WA
- Average high temperature in September: 61.3°F
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure in September
West Beach, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in September
West Beach, WA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
West Beach, WA
- Average humidity in September: 79%
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
West Beach, WA
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
West Beach, WA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in September
West Beach, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
West Beach, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
West Beach, WA
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
West Beach, WA
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index in September
West Beach, 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
West Beach, WA
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
West Beach, WA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





