Sammamish, WA Weather


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The most pleasant months of the year for Sammamish are August, July and September. In Sammamish, there are 3 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for Sammamish with an average high temperature of 76.0°, which ranks it as cooler than most places in Washington. December is the snowiest month in Sammamish with 2.0 inches of snow, and 5 months of the year have significant snowfall. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - Sammamish, WA

10 AM PST

Rain

50°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayRain54° / 48°S 10 mph
FridayLight Rain59° / 47°SSW 7 mph
SaturdayLight Rain57° / 47°S 10 mph
SundayLight Rain56° / 42°S 12 to 15 mph
MondayLight Rain55° / 40°SSW 12 mph
TuesdayChance Light Rain59° / 42°S 7 to 12 mph
WednesdayChance Light Rain61° / 43°SSW 6 to 9 mph

Weather Highlights

Summer High: the July high is around 75 degrees
Winter Low: the January low is 35
Rain: averages 53 inches of rain a year
Snow: averages 6 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Sammamish area is 9.1 (10=best), which means it is more comfortable than most places in Washington.

9.1 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January46° 35°
February49° 35°
March53° 37°
April58° 40°
May64° 45°
June69° 50°
July75° 54°
August76° 54°
September70° 49°
October59° 43°
November50° 38°
December45° 34°
Hot, Freezing, Rainy, Snowy Days: Sammamish
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January09201
February09161
March05190
April02170
May00150
June00110
July1070
August1060
September0090
October01150
November05201
December011192

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Sammamish
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Over 9 years ago

Seattle has beautiful greenery and gorgeous mountain views. It is quite dark and gloomy for much of the late fall into spring...or July 5th as locals know quite well. I  More

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Housing seems to be very overpriced, however after all things considered, it is well worth it. (Family of  More

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Sammamish is honestly a wonderful place to live. It's perfect for a family who wants a comfortable entertaining suburban life. The schools are pretty great, as I can say  More

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