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
Sammamish experiences its highest average temperatures in August, reaching a peak of 76.5°F (24.7°C) and a minimum of 52.2°F (11.2°C).Humidity
In August, the average relative humidity in Sammamish is 71%.Rainfall
July and August are months with the least rain when the rain falls for 5.2 days and typically aggregates up to 0.35" (9mm) of rain.Snowfall
May through October are months without snowfall in Sammamish.Daylight
The average length of the day in August is 14h and 13min.On the first day of August in Sammamish, Washington, sunrise is at 5:46 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:49 pm PDT.
Sunshine
With an average of 10.7h of sunshine, August has the most sunshine of the year in Sammamish, Washington.UV index
In August, the average daily maximum UV index in Sammamish is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are the warmest months in Sammamish?
What are August temperatures in Sammamish?
What is the average humidity in August in Sammamish?
What is the driest month in Sammamish?
How much does it rain in Sammamish in August?
When it does not snow in Sammamish?
What is the average length of the day in August in Sammamish?
When are sunrise and sunset in August in Sammamish?
What month has the most sunshine in Sammamish?
How long on average sun shines in August in Sammamish?
What is the UV index reading in August in Sammamish?
Average temperature in August
Sammamish, WA
- Average high temperature in August: 76.5°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.3°F).
- Average low temperature in August: 52.2°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in August
Sammamish, WA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in August
Sammamish, WA
- Average wind speed in August: 3.4mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in August
Sammamish, WA
- Average humidity in August: 71%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall in August
Sammamish, WA
- Average rainfall in August: 0.35"
The wettest month (with the highest rainfall) is December (1.85").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in August
Sammamish, WA
- Average rainfall days in August: 5.2 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in August
Sammamish, WA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Sammamish, WA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Sammamish, WA
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in August: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in August
Sammamish, WA
- Average sunshine days in August: 24 days
The month with the most sunshine days is August (24 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in August
Sammamish, WA
- Average UV index in August: 4
The months with the highest UV index are June and 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
Sammamish, WA
- Average cloud cover in August: 26
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in August
Sammamish, WA
- Average visibility in August: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (5mi).
Sammamish, Washington, USA
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