August weather forecastOak Harbor, WA
August
Weather in August
The last month of the summer, August, is another comfortable month in Oak Harbor, Washington, with an average temperature varying between 66°F (18.9°C) and 55.9°F (13.3°C).Temperature
Oak Harbor, Washington, starts August with an average high-temperature of a still enjoyable 66°F (18.9°C), hinting at a minimal fluctuation from July. Oak Harbor registers a consistent average low-temperature of 55.9°F (13.3°C) during August.Humidity
In August, the average relative humidity is 78%.Rainfall
In August, in Oak Harbor, the rain falls for 7.5 days. Throughout August, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 183.8 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Oak Harbor.Ocean temperature
August and September, with an average ocean temperature of 53.1°F (11.7°C), are months with the warmest seawater.Note: Dipping into 53.1°F (11.7°C) below 50°F (10°C) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 55.4°F (13°C) feels cold to the bone.
Daylight
The average length of the day in August in Oak Harbor is 14h and 16min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:46 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:53 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 11h of sunshine.UV index
In Oak Harbor, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In August, the UV index of 4 transforms into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Oak Harbor, WA
- Average high temperature in August: 66°F
The warmest month (with the highest average high temperature) is July (66.2°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in August: 55.9°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (37.9°F).
Average pressure in August
Oak Harbor, WA
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in August
Oak Harbor, WA
- Average wind speed in August: 4.3mph
The windiest month (with the highest average wind speed) is November (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in August
Oak Harbor, WA
- Average humidity in August: 78%
The months with the highest relative humidity are January, February and March (81%).
The month with the lowest relative humidity is July (76%).
Average rainfall in August
Oak Harbor, WA
- Average rainfall in August: 0.71"
The wettest month (with the highest rainfall) is November (3.46").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in August
Oak Harbor, WA
- Average rainfall days in August: 7.5 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is August (7.5 days).
Average snowfall in August
Oak Harbor, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Oak Harbor, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Oak Harbor, WA
- Average sea temperature in August: 53°F
The best month for swimming (with the highest average sea temperature) is August (53°F).
The coldest month (with the lowest average sea temperature) is February (45°F).
Average daylight in August /
Average sunshine in August
Oak Harbor, WA
- Average daylight in August: 14h and 18min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in August: 11h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in August
Oak Harbor, WA
- Average sunshine days in August: 21.7 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.5 days).
Average UV index in August
Oak Harbor, WA
- Average UV index in August: 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 August
Oak Harbor, WA
- Average cloud cover in August: 22
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in August
Oak Harbor, WA
- Average visibility in August: 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).
