Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
With an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 51.1°F (10.6°C), August is the warmest month.Humidity
In Cosmopolis, the average relative humidity in August is 80%.Rainfall
July and August are months with the least rain when the rain falls for 3.2 days and typically aggregates up to 0.12" (3mm) of rain.Snowfall
In Cosmopolis, snow does not fall in April through December.Daylight
In Cosmopolis, the average length of the day in August is 14h and 9min.On the first day of August, sunrise is at 5:55 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:55 pm PDT.
Sunshine
The average sunshine in August is 9.8h.UV index
In Cosmopolis, the average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In August, a daily maximum UV index of 4 leads to the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
What are the temperatures in August?
What is the average humidity in August?
What is the driest month?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Cosmopolis have in August?
When is the sunrise / sunset in August in Cosmopolis?
How long on average sun shines in August?
What is the UV index reading in August in Cosmopolis?
Average temperature in August
Cosmopolis, WA
- Average high temperature in August: 71.4°F
The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in August: 51.1°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (36.5°F).
Average pressure in August
Cosmopolis, 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 (30.01"Hg).
Average wind speed in August
Cosmopolis, WA
- Average wind speed in August: 5mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in August
Cosmopolis, WA
- Average humidity in August: 80%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is July (78%).
Average rainfall in August
Cosmopolis, WA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is January (1.93").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in August
Cosmopolis, WA
- Average rainfall days in August: 3.2 days
The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in August
Cosmopolis, WA
- Average snowfall in August: 0"
The months with the highest snowfall are January and February (0.28").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Cosmopolis, WA
- 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 daylight in August /
Average sunshine in August
Cosmopolis, WA
- Average daylight in August: 14h and 1min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Cosmopolis, WA
- Average sunshine days in August: 25.4 days
The month with the most sunshine days is August (25.4 days).
The months with the least sunshine days are February and March (14.1 days).
Average UV index in August
Cosmopolis, 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
Cosmopolis, WA
- Average cloud cover in August: 41
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in August
Cosmopolis, WA
- Average visibility in August: 4mi
The months with the highest visibility are February, March, April, May, June and November (5mi).
The months with the lowest visibility are January, July, August, September, October and December (4mi).
Cosmopolis, Washington, USA
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