September weather forecastSheridan Beach, WA
September
Weather in September
September, the first month of the autumn in Sheridan Beach, is also an agreeable month, with an average temperature varying between 68.7°F (20.4°C) and 50°F (10°C).Temperature
The arrival of September correlates with a minor temperature reduction, down from August's moderately hot 74.8°F (23.8°C) to an agreeable 68.7°F (20.4°C). An average nighttime temperature of 50°F (10°C) is witnessed in Sheridan Beach throughout September.Humidity
In Sheridan Beach, the average relative humidity in September is 76%.Rainfall
In Sheridan Beach, in September, during 12.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Sheridan Beach, during the entire year, the rain falls for 166.9 days and collects up to 21.93" (557mm) of precipitation.Snowfall
In Sheridan Beach, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:49 pm PDT.
Sunshine
In Sheridan Beach, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in September translates into these instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sheridan Beach, WA
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is August (53.1°F).
The coldest months (with the lowest average low temperature) are February and December (35.1°F).
Average pressure in September
Sheridan Beach, WA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Sheridan Beach, WA
- Average wind speed in September: 3.8mph
The windiest months (with the highest average wind speed) are January and March (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in September
Sheridan Beach, WA
- Average humidity in September: 76%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Sheridan Beach, WA
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is January (2.87").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Sheridan Beach, WA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is August (6.9 days).
Average snowfall in September
Sheridan Beach, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Sheridan Beach, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Sheridan Beach, WA
- Average daylight in September: 12h and 30min
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 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in September
Sheridan Beach, WA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).
Average UV index in September
Sheridan Beach, WA
- Average UV index in September: 3
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
Sheridan Beach, WA
- Average cloud cover in September: 32
The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Sheridan Beach, WA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).





