Lake Washington

Lake Washington

Seattle, King County, WA
492mi²
8.00ft
Directions
Lake Information

Situated between Seattle and Bellevue, Lake Washington is the state's second largest lake and the site of numerous Seattle-based activities, from the SeaFair hydroplane races every August to dinner cruises year-round from Argosy Cruises. Seward Park at the south end of the lake features a perimeter path for bicycles and pedestrians that follows the waterfront with sweeping views of the lake, as well as several swimming spots and kayak launches. The University of Washington operates a boat rental facility right on the lake (in Union Bay) where you can rent canoes and rowboats by the hour. On select Sundays from May through September, you can participate in Bicycle Sundays bicycle or walk along Lake Washington Boulevard south of Mount Baker Beach to Seward Parks entrance. If this is your first visit to Seattle, you might want to embark on the Lake Washington Cruise by Argosy. This 1-1/2 hour tour includes live narration pointing out some fascinating history as well as views of Mt. Rainier and homes of some of Seattle's rich and famous.

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Current Conditions

71°F°
Feels like 73°F°
PartlyCloudy
Today's High
63°F°
Today's Low
49°F°

Water Temperature

45°F
Updated: (May 9)
Sign in to contribute temps.

Current water temperature for Lake Washington is 45°F.

Current Snapshot

Wind3 mph WNW (Gust 4 mph)
Pressure
30.11 inHg
Visibility37 mi
Humidity29%
Cloud Cover44%

Forecast: Saturday, May 10

Day 1 of 9

Hourly Insights

7 AM
50°F°
10 AM
57°F°
1 PM
62°F°
4 PM
62°F°

Temperature

High
63°F°
Low
49°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

3mph
Avg Speed
Gusts up to
12mph
CalmModerateStrong
Max Speed7 mph

Sun, Moon & UV

Sunrise12:38 PM
Sunset3:33 AM
Moon PhasewaxingGibbous
Max UV Index5 (Moderate)

Solunar Fishing Forecast

Action Rating
3/5

Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

7:00 AM - 7:00 AM

1:43 PM - 4:13 PM

Minor Times (Good)

1:32 AM - 3:02 AM

11:01 AM - 12:31 PM

Outlook for Saturday at Lake Washington

Expect temperatures ranging from 49°F to 63°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 3 mph, with potential gusts reaching up to 12 mph. The maximum UV index will be 5 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 7:00 AM and 1:43 PM, or try the minor windows near 1:32 AM and 11:01 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Lake Washington.

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May 10th 2025

Lake Information

Elevation
8 ft
Area
492 mi²
Coordinates
47.504, -122.209

Weather Forecast

Saturday

63°F
49°F

Sunday

64°F
48°F

Monday

61°F
47°F

Tuesday

62°F
49°F

Wednesday

59°F
50°F

Thursday

57°F
46°F

Friday

57°F
49°F

Saturday

56°F
49°F

Sunday

60°F
46°F
Saturday - 5/10/2025
63°F
49°F
12am
55°F
45°F
30.06 hPa
3 mph
NNW
G: 8 mph
2am
51°F
45°F
30.04 hPa
3 mph
NW
G: 5 mph
4am
50°F
45°F
30.02 hPa
1 mph
NW
G: 2 mph
6am
49°F
45°F
30.01 hPa
0 mph
SSE
G: 2 mph
8am
53°F
45°F
30.02 hPa
1 mph
WSW
G: 3 mph
10am
57°F
45°F
30.02 hPa
3 mph
S
G: 4 mph
12pm
61°F
45°F
30.03 hPa
4 mph
WSW
G: 6 mph
2pm
63°F
45°F
30.03 hPa
6 mph
SW
G: 11 mph
4pm
62°F
45°F
30.01 hPa
6 mph
SSW
G: 11 mph
6pm
63°F
45°F
29.99 hPa
6 mph
SSW
G: 11 mph
8pm
61°F
45°F
29.98 hPa
3 mph
S
G: 9 mph
10pm
55°F
45°F
29.94 hPa
4 mph
SSE
G: 9 mph

Water Temperature History

Trends for Lake Washington

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

38°F

On Jan 1

Coldest point in the Last 12 Months.

Average in Period

51°F

Typical temp during the Last 12 Months.

Temperature Trend: Last 12 Months

Surface temperature over the selected period.

Key Observations (Last 12 Months)

  • Warmest avg: July (74°F).
  • Coolest avg: December (41°F).
  • Rapid warming often occurs: June → July (+11°F).
  • Sharpest cooling trend: September → October (-15°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm036912

Wind Direction

327°

Pressure

1018 mb

Cloud Cover

72%

Visibility

19 miles

Daily Pressure Forecast

SatSunMonTueWedThuFriSatSun0.008.8617.7226.5835.44
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Frequently Asked Questions About Lake Washington

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