August weather forecastCannon Beach, OR
August
Weather in August
August in Cannon Beach sustains the summer's heat and dry theme. The city relishes in long, sunny, warm days coupled with pleasantly cool evenings. Though rainfall inches slightly higher than July's low, the number of rainy days remains constant. Cooling sea temperament provides respite from the summer heatwave. Besides, a gentler wind regime prevails, as evidenced by the 10.1mph (16.3km/h) gusts.Temperature
August, with average temperatures reaching a high of 65.5°F (18.6°C) and a low of 55°F (12.8°C), is the warmest month.Humidity
With an average relative humidity of 84%, August is the most humid month.Rainfall
The months with the least rainfall are July and August Rain falls for 7.3 days and accumulates 0.47" (12mm) of rain.Snowfall
April through November are months without snowfall.Ocean temperature
In August, the average ocean temperature is 56.8°F (13.8°C).Note: Beware of 56.8°F (13.8°C) waters at 55.4°F (13°C), they're uninviting, and a dip below 50°F (10°C) has risks of breath loss and cold shock, contingent on health.
Daylight
The average length of the day in August is 14h and 5min.On the first day of August, sunrise is at 5:59 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:55 pm PDT.
Sunshine
With an average of 10h of sunshine, August has the most sunshine of the year.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 moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 in August translates into these instructions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Cannon Beach, OR
- Average high temperature in August: 65.5°F
The warmest month (with the highest average high temperature) is August (65.5°F).
The month with the lowest average high temperature is December (46.6°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in August
Cannon Beach, OR
- Average pressure in August: 30.03"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.02"Hg).
Average wind speed in August
Cannon Beach, OR
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Cannon Beach, OR
- Average humidity in August: 84%
The month with the highest relative humidity is August (84%).
The months with the lowest relative humidity are January, March, April, May, October and December (81%).
Average rainfall in August
Cannon Beach, OR
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is December (6.54").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in August
Cannon Beach, OR
- Average rainfall days in August: 7.3 days
The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are July and August (7.3 days).
Average snowfall in August
Cannon Beach, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Cannon Beach, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Cannon Beach, OR
- Average sea temperature in August: 56.8°F
The best month for swimming (with the highest average sea temperature) is July (57.2°F).
The coldest month (with the lowest average sea temperature) is February (48.1°F).
Average daylight in August /
Average sunshine in August
Cannon Beach, OR
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in August
Cannon Beach, OR
- Average sunshine days in August: 21.2 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in August
Cannon Beach, OR
- Average UV index in August: 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 February, November and December (UV index 2).
Average cloud cover in August
Cannon Beach, OR
- Average cloud cover in August: 35
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Cannon Beach, OR
- Average visibility in August: 5mi
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).
