August weather forecastPort Townsend, WA
August
Weather in August
August maintains the summer heat with average highs mirroring July at 67.8°F (19.9°C). Despite being the tail end of summer, the weather continues to be favourably warm. Rainfall increases modestly from July, observed as a gentle nudge towards autumn. Despite its end-of-summer position, August manages to extend the sunny, dry and pleasant weather that locals and tourists relish.Temperature
Port Townsend, Washington, notes the warmest temperatures in August, with a high average of 67.8°F (19.9°C) and a low of 55.4°F (13°C).Humidity
The average relative humidity in August is 76%.Rainfall
In Port Townsend, in August, during 6.6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Port Townsend, Washington, during the entire year, the rain falls for 180.3 days and collects up to 21.85" (555mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
August and September, with an average ocean temperature of 53.1°F (11.7°C), are months with the warmest seawater.Note: Beware of 53.1°F (11.7°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
In August, the average length of the day is 14h and 14min.On the first day of the month, sunrise is at 5:48 am and sunset at 8:46 pm. On the last day of August, in Port Townsend, sunrise is at 6:28 am and sunset at 7:53 pm PDT.
Sunshine
With an average of 11h of sunshine, August has the most sunshine of the year.UV index
In August, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 4 in August interprets into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. When the Sun is at its strongest around midday, find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Port Townsend, WA
- Average high temperature in August: 67.8°F
The warmest month (with the highest average high temperature) is August (67.8°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in August: 55.4°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is February (37.4°F).
Average pressure in August
Port Townsend, WA
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).
Average wind speed in August
Port Townsend, WA
- Average wind speed in August: 4mph
The windiest month (with the highest average wind speed) is November (7.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in August
Port Townsend, WA
- Average humidity in August: 76%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (75%).
Average rainfall in August
Port Townsend, WA
- Average rainfall in August: 0.63"
The wettest month (with the highest rainfall) is November (2.91").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in August
Port Townsend, WA
- Average rainfall days in August: 6.6 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.6 days).
Average snowfall in August
Port Townsend, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Port Townsend, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Port Townsend, 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
Port Townsend, WA
- Average daylight in August: 14h and 12min
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 January (Average sunshine: 4h and 48min).
Average sunshine days in August
Port Townsend, WA
- Average sunshine days in August: 22.3 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.2 days).
Average UV index in August
Port Townsend, 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
Port Townsend, WA
- Average cloud cover in August: 21
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in August
Port Townsend, 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).
