September weather forecastOcean Shores, WA

September
Weather in September
The arrival of September in Ocean Shores marks the dawn of the fall season, subtly hinting at a shift in weather pattern. The temperature begins its descent from the summer highs, paving the way for cooler days. September's weather does see a hike in rainfall to 1.02" (26mm) but still maintains the city's scenic tranquility. The shift from the bright summer sunshine to mellow autumn hues is accentuated by the declining daylight hours. The end of September opens the gateway to the freshness of October.Temperature
The arrival of September sees a recorded average high-temperature of a still enjoyable 63.7°F (17.6°C), showing little divergence from the previous month's conditions. Throughout the month of September, Ocean Shores reports a steady low-temperature average of 52.7°F (11.5°C).Humidity
In September, the average relative humidity is 83%.Rainfall
In Ocean Shores, during September, the rain falls for 10.6 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Ocean Shores, during the entire year, the rain falls for 152.8 days and collects up to 19.41" (493mm) of precipitation.Snowfall
In Ocean Shores, snow does not fall in April through October and December.Ocean temperature
In September, the average ocean temperature is 59°F (15°C).Note: In 59°F (15°C), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 69.8°F (21°C).
Daylight
In Ocean Shores, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:55 pm. On the last day of September, in Ocean Shores, sunrise is at 7:15 am and sunset at 6:57 pm PDT.
Sunshine
In Ocean Shores, the average sunshine in September is 8.4h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ocean Shores, WA
- Average high temperature in September: 63.7°F
The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.5°F).
- Average low temperature in September: 52.7°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 (39.7°F).
Average pressure in September
Ocean Shores, WA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in September
Ocean Shores, WA
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
Ocean Shores, WA
- Average humidity in September: 83%
The month with the highest relative humidity is December (85%).
The months with the lowest relative humidity are April, May and June (81%).
Average rainfall in September
Ocean Shores, WA
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in September
Ocean Shores, WA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is July (5.6 days).
Average snowfall in September
Ocean Shores, WA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Ocean Shores, WA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in September
Ocean Shores, WA
- Average sea temperature in September: 59°F
The best month for swimming (with the highest average sea temperature) is August (61°F).
The coldest months (with the lowest average sea temperature) are January and February (48°F).
Average daylight in September /
Average sunshine in September
Ocean Shores, WA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Ocean Shores, WA
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is December (10.7 days).
Average UV index in September
Ocean Shores, WA
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ocean Shores, WA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Ocean Shores, 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).





