Lake Sammamish vs Lake Union

Lake Sammamish is the warmer swim right now at about 19.8°C. They are roughly 20 km apart in United States.

Lake Sammamish

Washington

19.8°C

mild · modelled estimate

October average
19.8°C
Warmest month
August · 24.0°C
Coldest month
7.0°C
Swim season
June–October

Lake Sammamish in Washington, United States reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.

Lake Union

Washington

19.0°C

mild · modelled estimate

October average
19.0°C
Warmest month
August · 23.0°C
Coldest month
7.0°C
Swim season
June–October

Lake Union in Washington, United States reaches comfortable swimming temperatures in July and August, and drops close to single digits in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Lake Sammamish8.1°C7.0°C8.1°C11.3°C15.5°C19.8°C22.9°C24.0°C22.9°C19.8°C15.5°C11.3°C
Lake Union8.1°C7.0°C8.1°C11.0°C15.0°C19.0°C21.9°C23.0°C21.9°C19.0°C15.0°C11.0°C

Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.

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