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Photo: Three girl swimmers lining up to start a race at Green Lake, Seattle, Washington (4724938738) by UW Digital Collections (No restrictions) License

Green Lake

Lake · Seattle, Washington

Great conditions todaypet-friendly

Freshwater lake offers swimming beaches, fishing sites, boat ramps & a recreational path.

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Current water conditions

Water temp
57°F
14°C
Cold water — serious cold-shock risk today. At this temperature, sudden immersion can trigger involuntary gasping and sap a strong swimmer's strength within minutes. Enter slowly, never alone, and consider a wetsuit — or sit this one out.

Live data from NOAA buoy TCNW1 (28.5 mi away), as of Aug 20, 9:54 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Green Lake

H: 82° L: 61°
Sunny
Sunny
81°
|
Feels like 77°
Precipitation
3%
Humidity
37%
Wind
8 mph
UV Index
5.4
Water Conditions:
🏊Perfect for swimming🧴High UV - use sunscreen
12 AM
Clear
66°
3 AM
Clear
64°
6 AM
Clear
62°
9 AM
Sunny
64°
12 PM
Sunny
77°
3 PM
Sunny
81°
6 PM
Sunny
81°
9 PM
Clear
71°

Sponsored gear checklist

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Frequently asked questions

Where is Green Lake?
Green Lake is a lake in Seattle, Washington.
What is the water temperature at Green Lake?
As of August 20, 2026, the water temperature at Green Lake in Seattle, Washington is 57°F (14°C), measured by NOAA buoy TCNW1, 28.5 miles away.
Can you swim at Green Lake?
There is no fixed answer for Green Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Green Lake in Seattle, Washington. Check current water conditions before you go, and follow posted signs and local guidance.
How is Green Lake rated?
Green Lake in Seattle, Washington has an average visitor rating of 4.7 out of 5, based on 51 reviews.
What amenities does Green Lake have?
Visitor-listed amenities at Green Lake include pet-friendly.

Visitor Reviews

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Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

Right Now
Perfect conditions right now!
🏞️ Lakes Tips:
  • Check for boat launch facilities and fees
  • Obtain required fishing licenses before arrival
  • Be aware of lake-specific regulations and restrictions
  • Monitor water quality reports before swimming
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Seattle, WA 98115

Seattle, Washington 98115

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People Talk About

💬 walk💬 people💬 trail💬 tennis💬 duck💬 park💬 picnic

Amenities

🐾 Dog-friendly