August weather forecastLongview, WA
August
Weather in August
Following July, August continues the trend of high temperatures, although slightly milder. Longview remains bathed in sunshine, offering excellent visibility and long daylight hours. Rainfall is relatively scarce, similar to the conditions of July, contributing to an overall drier atmosphere. However, the ocean breeze might offer a relieving cool-down from the otherwise hot and dry weather. The latter end of August begins to hint at a transition towards cooler autumn weather, especially during late evenings and early mornings.Temperature
In Longview, temperatures reach their average annual highs in August, measuring 77.9°F (25.5°C) and a minimum average of 49.8°F (9.9°C).Humidity
In August, the average relative humidity in Longview is 73%.Rainfall
August is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.39" (10mm) of precipitation.Snowfall
In Longview, snow does not fall in April through October.Ocean temperature
In August, the average ocean temperature is 53.6°F (12°C).Note: Navigating the 53.6°F (12°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In August, the average length of the day in Longview is 14h and 5min.On the first day of August, sunrise is at 5:54 am and sunset at 8:41 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:51 pm PDT.
Sunshine
The month with the most sunshine is August, with an average of 10.4h of sunshine.UV index
The average daily maximum UV index in August in Longview is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Longview, WA
- Average high temperature in August: 77.9°F
The warmest month (with the highest average high temperature) is August (77.9°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in August: 49.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in August
Longview, WA
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in August
Longview, WA
- Average wind speed in August: 4mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in August
Longview, WA
- Average humidity in August: 73%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (72%).
Average rainfall in August
Longview, WA
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is January (3.9").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in August
Longview, WA
- Average rainfall days in August: 6.3 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is July (6.1 days).
Average snowfall in August
Longview, WA
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Longview, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in August
Longview, WA
- Average sea temperature in August: 53.6°F
The best month for swimming (with the highest average sea temperature) is September (53.8°F).
The coldest month (with the lowest average sea temperature) is February (46.6°F).
Average daylight in August /
Average sunshine in August
Longview, WA
- 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 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 30min).
Average sunshine days in August
Longview, WA
- Average sunshine days in August: 21.3 days
The month with the most sunshine days is July (22 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in August
Longview, WA
- Average UV index in August: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in August
Longview, WA
- Average cloud cover in August: 36
The months with the most cloud cover are February and March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in August
Longview, WA
- Average visibility in August: 5mi
The month with the highest visibility is August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (4mi).
