September weather forecastEastsound, WA
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Eastsound, Washington, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 61.3°F (16.3°C).Temperature
September is marked by an average high-temperature of a still enjoyable 61.3°F (16.3°C), almost identical to the preceding month. Eastsound navigates through September with a barely noticeable decrease in temperature at night, stabilizing at a mild 55.6°F (13.1°C).Humidity
The months with the highest humidity in Eastsound are January, August and September, with an average relative humidity of 79%.Rainfall
In Eastsound, during September, the rain falls for 11.6 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Eastsound, during the entire year, the rain falls for 167.7 days and collects up to 23.46" (596mm) of precipitation.Snowfall
April through October are months without snowfall in Eastsound.Daylight
The average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:52 pm. On the last day of September, in Eastsound, sunrise is at 7:10 am and sunset at 6:51 pm PDT.
Sunshine
In Eastsound, the average sunshine in September is 9.4h.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 rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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
Eastsound, 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).
