August weather forecastSeaside, OR
August
Weather in August
During August, Seaside, Oregon reaches the apex of its summer climate, characterized by the year's zenith of average high temperature at 65.5°F (18.6°C). The weather balances heat and light, enabling outdoor activities under the most conducive conditions. The city bathes in an extensive duration of sunlight with the longest days of the year. The sea, basked in sunlight, invites swimmers to its warm waters. As a result, August, a synonym for the halcyon days of summer, garners considerable attention and footfall.Temperature
In Seaside, the month of August registers the highest temperatures, averaging 65.5°F (18.6°C) at the peak and 55°F (12.8°C) at the lowest.Humidity
The most humid month is August, with an average relative humidity of 84%.Rainfall
July and August are months with the least rain when the rain falls for 7.3 days and typically aggregates up to 0.47" (12mm) of rain.Snowfall
In Seaside, Oregon, snow does not fall in April through November.Ocean temperature
In Seaside, in August, the average water temperature is 56.8°F (13.8°C).Note: Swimming at temperatures less than 50°F (10°C) in 56.8°F (13.8°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
In Seaside, 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
August has the most sunshine of the year, with an average of 10h of sunshine.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 4 transforms into these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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
Seaside, 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).
