Lake Washington Water Temperature
The City of Seattle is in the State of Washington and home to Lake Washington in King County. The City is a serene evergreen environment, surrounded by Cascade Mountains to the east, Olympic Mountains to the west, Mount Rainier to the South and Mt. Baker to the North.
Seattle is also home to the marvellous Space Needle and the Pike Market, the oldest farmers market in the U.S where you can shop and see many attractions.
Lake Washington Summary
| Description | Value |
|---|---|
| Warmest Month Water Temperature: | August with 69.1°F / 20.6°C |
| Coldest Month Water Temperature: | January with 39°F / 3.9°C |
| Warmest Month Air Temperature: | August with 65.8°F / 18.8°C |
| Coldest Month Air Temperature: | December with 39°F / 3.9°C |
| Wettest Month: | December with 2.4in / 60.3mm |
| Driest Month: | July with 0in / 0mm |
| Highest Humidity | January with 84.6% |
| Lowest Humidity | July with 67.1% |
| Best Time to Visit: | June, July, August, September |
| Climate Classification | temperate climate with warm and dry summer |
Lake Washington water temperature by month
Lake Washington water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
39.6 | 39 | 38.8 |
|
February |
39.4 | 39.2 | 38.8 |
|
March |
42.8 | 40.8 | 39.4 |
|
April |
49.3 | 45.7 | 43 |
|
May |
59.2 | 53.8 | 49.3 |
|
June |
65.1 | 60.4 | 57 |
|
July |
71.1 | 65.7 | 61.3 |
|
August |
70.9 | 66.7 | 63.3 |
|
September |
66 | 61.7 | 57.2 |
|
October |
59.5 | 54.3 | 50 |
|
November |
50.4 | 47.1 | 43.9 |
|
December |
43.7 | 41.4 | 39.7 |
Lake Washington water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
4.2 | 3.9 | 3.8 |
|
February |
4.1 | 4 | 3.8 |
|
March |
6 | 4.9 | 4.1 |
|
April |
9.6 | 7.6 | 6.1 |
|
May |
15.1 | 12.1 | 9.6 |
|
June |
18.4 | 15.8 | 13.9 |
|
July |
21.7 | 18.7 | 16.3 |
|
August |
21.6 | 19.3 | 17.4 |
|
September |
18.9 | 16.5 | 14 |
|
October |
15.3 | 12.4 | 10 |
|
November |
10.2 | 8.4 | 6.6 |
|
December |
6.5 | 5.2 | 4.3 |
Lake Washington is the place to explore during the summer. Seattle’s weather is mostly wet but summer months from July to September are extremely hot with temperatures ranging between 70˚F and 90˚F, a good time to be around water. Fly into the Seattle Tacoma International airport and get to and around the City by train, bus or van shuttles as well as taxis and rental cars. If you would rather, cycle to experience slow leisurely sightseeing.
Lake Washington weather by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
48.2 | 39.6 | 31.8 | 0.5 | 12 | 84.6% |
|
February |
48.9 | 39.9 | 32.5 | 0.3 | 9 | 80.8% |
|
March |
55.6 | 43.3 | 34.3 | 1 | 16 | 79.2% |
|
April |
61.7 | 47.7 | 36.5 | 0.5 | 10 | 76.2% |
|
May |
66.6 | 54 | 41.5 | 0.2 | 1 | 73.7% |
|
June |
73.2 | 59.2 | 49.5 | 0.2 | 0 | 71.7% |
|
July |
79 | 65.3 | 54 | 0 | 0 | 67.1% |
|
August |
79.5 | 65.8 | 54.7 | 0 | 0 | 67.6% |
|
September |
73.4 | 59.7 | 49.1 | 0 | 0 | 74.7% |
|
October |
63.9 | 51.4 | 41.4 | 0.1 | 0 | 81.8% |
|
November |
53.6 | 43.9 | 34.3 | 0.6 | 15 | 83.9% |
|
December |
45.9 | 39 | 33.3 | 2.4 | 12 | 84.1% |
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
9 | 4.2 | -0.1 | 13.9 | 12 | 84.6% |
|
February |
9.4 | 4.4 | 0.3 | 6.8 | 9 | 80.8% |
|
March |
13.1 | 6.3 | 1.3 | 25.1 | 16 | 79.2% |
|
April |
16.5 | 8.7 | 2.5 | 12.2 | 10 | 76.2% |
|
May |
19.2 | 12.2 | 5.3 | 4.1 | 1 | 73.7% |
|
June |
22.9 | 15.1 | 9.7 | 4.2 | 0 | 71.7% |
|
July |
26.1 | 18.5 | 12.2 | 0 | 0 | 67.1% |
|
August |
26.4 | 18.8 | 12.6 | 0 | 0 | 67.6% |
|
September |
23 | 15.4 | 9.5 | 0 | 0 | 74.7% |
|
October |
17.7 | 10.8 | 5.2 | 2.6 | 0 | 81.8% |
|
November |
12 | 6.6 | 1.3 | 14.6 | 15 | 83.9% |
|
December |
7.7 | 3.9 | 0.7 | 60.3 | 12 | 84.1% |
Activities around Lake Washington
The summer weather makes the Lake very conducive for swimming with the water temperatures ranging around 70˚F during the summer months. Other activities you can involve yourself in while there include, driving on the Floating Bridge, the longest in the world, over Lake Washington, sail on the lake in a rental boat or cruise in a speedboat and watch salmon swim upstream at the “Fish Ladder”. The Lake is also surrounded by magnificent beautiful homes to see, among them being Bill Gates home.
Activities & POI in Lake Washington
| Type of Activity | List |
|---|---|
| Beach | Madison Park Beach, North Beach, Mercerwood Shore Club beach, Mercer Island Beach Club Beach, Bay Street End, East Harrison Street End, South Holgate Street End, Lake Union Park Kayak Launch and Beach, Pritchard Island Beach, Mount Baker Beach, Magnuson Park Beach, Road End Beach |
| Marina for Sailing, Boat adventures, fishing | Leschi Moorage, Second Avenue South Dock, Kirkland Marina, Leschi Yacht Basin, Bell Street Marina, Queen City Yacht Club, Seattle Yacht Club, Lake Union SkyLaunch, Harbor Island Marina, Puget Sound Yacht Club, Seattle Marina, Meydenbauer Bay Yacht Club, Newport Yacht Club, Waterfront Activities Center, AGC Marina, Gas Works Park Marina, Spinnaker Bay Marina, Parkshore Marina, Dunato's Marina, Lakewood Moorage, Newport Yacht Basin, Carillon Point, Boat Street Marina, Lake Union Waterworks, Fremont Tug & Boat Co., Affinity Marina, Sea Scout Base Lake Union, Tyee Yacht Club, Yarrow Bay Marina |
| Attraction | Underground Tour, Seattle Great Wheel, Mystery Coke Machine, Gum Wall, Spooked in Seattle, Sky View Observatory, Public Market Clock, Sanitary Market Building, Three Brick Monoliths, Roll Call, Wings over Washington, Comedy Underground, Smith Tower Observatory, Microsoft Visitor Center, Xanadu 2.0, Seattle Escape Games, Seattle Gum Wall, Harry Partch Instrumentarium, Seattle Center, Space Needle, Washington State Convention Center, Central Library, Pioneer Square, Pioneer Square Pergola, Japanese Garden, Ride the Ducks, Lotus, Swiftsure (LV-83), Arthur Foss, Virginia V, Twilight, Starbucks Reserve Roastery and Tasting Room, Bell Harbor Conference Center, Argosy Cruises, MV Skansonia, Duwamish, Discovery, Pike Place Market, The Carousel, Seattle Glassblowing Studio, Argosy Cruises - Lake Union |
| Golf Course | The Bellevue Golf Course, Crossroads Par 3 Golf Course, Sand Point Country Club, Overlake Golf & Country Club, Jefferson Park Golf Course, Driving Range, Broadmoor Golf Course, Glendale Country Club, University of Washington Golf Driving Range |
| Caravan Site | Trailer Inns of Bellevue |
Picture Copyright: Flickr CC 2.0 ChrisYunker
