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

65°F°
Feels like 60°F°
Cloudy
Today's High
62°F°
Today's Low
49°F°

Water Temperature

45°F
Updated: (May 12)
Sign in to contribute temps.

Current water temperature for Lake Washington is 45°F.

Current Snapshot

Wind7 mph NW (Gust 12 mph)
Pressure
29.81 inHg
Visibility26 mi
Humidity41%
Cloud Cover98%

Forecast: Tuesday, May 13

Day 1 of 9

Hourly Insights

7 AM
50°F°
10 AM
54°F°
1 PM
60°F°
4 PM
62°F°

Temperature

High
62°F°
Low
49°F°

Precipitation

Chance35%
Amount0.00"
Typerain

Wind

6mph
Avg Speed
Gusts up to
18mph
CalmModerateStrong
Max Speed9 mph

Sun, Moon & UV

Sunrise12:33 PM
Sunset3:37 AM
Moon PhasewaningGibbous
Max UV Index4 (Moderate)

Solunar Fishing Forecast

Action Rating
4/5

Todays action is rated a 4 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

8:00 AM - 10:30 AM

3:58 PM - 6:28 PM

Minor Times (Good)

4:58 AM - 6:28 AM

12:04 PM - 1:34 PM

Outlook for Tuesday at Lake Washington

Expect temperatures ranging from 49°F to 62°F. There's a 35% chance of rain, potentially bringing around 0.00" rain. Winds will be averaging 6 mph, with potential gusts reaching up to 18 mph. The maximum UV index will be 4 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 4/5 (Todays action is rated a 4 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 8:00 AM and 3:58 PM, or try the minor windows near 4:58 AM and 12:04 PM for potential early morning or evening action. Check back for the latest conditions and forecasts for Lake Washington.

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May 12th 2025

Lake Information

Elevation
8 ft
Area
492 mi²
Coordinates
47.504, -122.209

Weather Forecast

Tuesday

62°F
49°F

Wednesday

59°F
50°F

Thursday

56°F
46°F

Friday

61°F
48°F

Saturday

57°F
49°F

Sunday

60°F
47°F

Monday

58°F
48°F

Tuesday

59°F
48°F

Wednesday

62°F
46°F
Tuesday - 5/13/2025
62°F
49°F
12am
52°F
45°F
29.91 hPa
4 mph
SSE
G: 11 mph
2am
50°F
45°F
29.94 hPa
5 mph
SSE
G: 12 mph
4am
49°F
45°F
29.96 hPa
4 mph
SSE
G: 13 mph
6am
50°F
45°F
29.99 hPa
5 mph
SSE
G: 11 mph
8am
51°F
45°F
30.02 hPa
5 mph
S
G: 9 mph
10am
54°F
45°F
30.04 hPa
5 mph
SSW
G: 9 mph
12pm
58°F
45°F
30.04 hPa
5 mph
SSW
G: 9 mph
2pm
61°F
45°F
30.02 hPa
6 mph
SSW
G: 11 mph
4pm
62°F
45°F
30.03 hPa
8 mph
SW
G: 14 mph
6pm
61°F
45°F
30.03 hPa
7 mph
SW
G: 13 mph
8pm
59°F
45°F
30.02 hPa
8 mph
SW
G: 16 mph
10pm
55°F
45°F
30.04 hPa
7 mph
SSW
G: 17 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: May → June (+13°F).
  • Sharpest cooling trend: September → October (-15°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm05101520

Wind Direction

159°

Pressure

1013 mb

Cloud Cover

20%

Visibility

13 miles

Daily Pressure Forecast

TueWedThuFriSatSunMonTueWed0.008.8617.7226.5835.44
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Frequently Asked Questions About Lake Washington

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