August weather forecastCopalis Beach, WA
August
Weather in August
August, the last month of the summer in Copalis Beach, is another comfortable month, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 54.5°F (12.5°C).Temperature
Copalis Beach's temperature records reveal August as the warmest month, marked by average highs of 65.8°F (18.8°C) and lows of 54.5°F (12.5°C).Humidity
In Copalis Beach, the average relative humidity in August is 84%.Rainfall
In Copalis Beach, in August, during 5.7 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 152.8 rainfall days, and 19.41" (493mm) of precipitation is accumulated.Snowfall
In Copalis Beach, snow does not fall in April through October and December.Daylight
The average length of the day in August is 14h and 10min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:49 pm. On the last day of August, in Copalis Beach, sunrise is at 6:35 am and sunset at 7:57 pm PDT.
Sunshine
In Copalis Beach, the average sunshine in August is 9.8h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Copalis Beach. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 4 in August interprets into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Copalis Beach, WA
- Average high temperature in August: 65.8°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 August: 54.5°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 August
Copalis Beach, WA
- Average pressure in August: 30.04"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 August
Copalis Beach, WA
- Average wind speed in August: 7.4mph
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 August
Copalis Beach, WA
- Average humidity in August: 84%
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 August
Copalis Beach, WA
- Average rainfall in August: 0.39"
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 August
Copalis Beach, WA
- Average rainfall days in August: 5.7 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 August
Copalis Beach, WA
- Average snowfall in August: 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 August
Copalis Beach, WA
- Average snowfall days in August: 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 daylight in August /
Average sunshine in August
Copalis Beach, WA
- Average daylight in August: 14h and 12min
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 August: 9h and 48min
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 August
Copalis Beach, WA
- Average sunshine days in August: 21.7 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 August
Copalis Beach, WA
- 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 January, February, November and December (UV index 2).
Average cloud cover in August
Copalis Beach, WA
- Average cloud cover in August: 34
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 August
Copalis Beach, WA
- 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).
