Best year time to visit Sammamish

General weather information about Sammamish

Average annual temperature is 11.3 °C

Absolute maximum temperature: 34.7 °C

Absolute minimum temperature: -6.8 °C

Number of sunny days: 159 days

Number of rainy days: 204 days

Number of snow days: 2 days

Look at detailed online map of Sammamish

* Weather data for Sammamish United States is based on climate observations for 2026 year

Sammamish air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.314.118.328.331.930.632.034.728.126.815.816.2
Average daytime temperature (°C)8.88.111.613.422.323.427.427.821.916.810.910.2
Average temperature (°C)5.34.05.88.015.416.219.920.415.611.46.56.7
Average night temperature (°C)2.81.21.94.210.010.913.614.711.67.73.84.2
Absolute minimum temperature (°C)-4.3-6.8-6.2-0.35.77.510.311.66.5-1.9-1.9-2.2

Sammamish monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.015.015.014.013.011.09.08.0
Daylight mean duration (h)8.910.311.913.615.115.915.514.212.610.99.38.5
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)3.74.77.36.410.311.313.111.58.16.45.23.0
Precipitation (mm)126961031662540114711189184282
Sunny days4974171925191417168
Rainy days26182426141161216141423
Snow days110000000000

Sammamish - weather forecast by months

Sammamish weather in januarySammamish weather in februarySammamish weather in marchSammamish weather in aprilSammamish weather in maySammamish weather in juneSammamish weather in julySammamish weather in augustSammamish weather in septemberSammamish weather in octoberSammamish weather in novemberSammamish weather in december

Best time to visit Sammamish:

The best time to visit Sammamish during the most sunny months:

  • May — 10.3(h)
  • June — 11.3(h)
  • July — 13.1(h)
  • August — 11.5(h)

Months with the longest average daylight duration in Sammamish:

  • June — 15.9(h)
  • July — 15.5(h)

The largest precipitation sum in Sammamish is at

  • April — 166(mm)
  • November — 184(mm)
  • December — 282(mm)

    • Weather forecast in the closest to Sammamish admin centers

    Weather forecast in the closest towns to Sammamish

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    Frequently asked questions

    When is the best time to visit Sammamish?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sammamish.
    What is the weather like in Sammamish?
    See average temperature, rainfall and daylight hours for Sammamish by month in the table above.
    How many sunny days does Sammamish have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sammamish throughout the year.