Seattle (Puget Sound) tide windows

Name: Seattle (Puget Sound) daylight low-tide windows
Creator: Tidewindow
License: https://creativecommons.org/licenses/by/4.0/

NOAA 9447130

Central Puget Sound reference station. Summer minus tides here expose broad gravel-and-boulder flats at Alki and Constellation Park.

Covers: Alki Beach · Constellation Park · Golden Gardens

Next best window · computed 2026-07-04

Jul 11, 2026 (Sat): the tide bottoms at -2.3 ft at 8:49 AM — walkable 6:35 AM–11:10 AM, arrive by 7:49 AM. 100 · Exceptional

Every daylight window, next 30 days

Heights in feet MLLW from NOAA station 9447130 (Seattle) predictions. ✳ = federal holiday.

Date	Low	Height	Window	Daylight	Score
Jul 4, 2026 Sat	2:21 PM	-0.4 ft	12:50 PM–3:45 PM	2h 55m	66 · Good
Jul 5, 2026 Sun	2:59 PM	0.8 ft	2:30 PM–3:25 PM	0h 55m	29 · Skip
Jul 9, 2026 Thu	7:03 AM	0.2 ft	5:55 AM–8:15 AM	2h 20m	40 · Fair
Jul 10, 2026 Fri	7:56 AM	-1.1 ft	6:05 AM–9:55 AM	3h 50m	78 · Great
Jul 11, 2026 Sat	8:49 AM	-2.3 ft	6:35 AM–11:10 AM	4h 35m	100 · Exceptional
Jul 12, 2026 Sun	9:40 AM	-3.2 ft	7:15 AM–12:10 PM	4h 55m	100 · Exceptional
Jul 13, 2026 Mon	10:31 AM	-3.7 ft	8:00 AM–1:05 PM	5h 5m	90 · Exceptional
Jul 14, 2026 Tue	11:20 AM	-3.8 ft	8:50 AM–1:55 PM	5h 5m	90 · Exceptional
Jul 15, 2026 Wed	12:08 PM	-3.5 ft	9:45 AM–2:35 PM	4h 50m	90 · Exceptional
Jul 16, 2026 Thu	12:55 PM	-2.7 ft	10:40 AM–3:10 PM	4h 30m	90 · Exceptional
Jul 17, 2026 Fri	1:40 PM	-1.5 ft	11:45 AM–3:30 PM	3h 45m	86 · Great
Jul 18, 2026 Sat	2:25 PM	-0.0 ft	1:15 PM–3:35 PM	2h 20m	53 · Fair
Jul 23, 2026 Thu	7:21 AM	0.6 ft	6:30 AM–8:20 AM	1h 50m	28 · Skip
Jul 24, 2026 Fri	8:11 AM	0.1 ft	6:50 AM–9:35 AM	2h 45m	51 · Fair
Jul 25, 2026 Sat	8:57 AM	-0.3 ft	7:20 AM–10:35 AM	3h 15m	67 · Good
Jul 26, 2026 Sun	9:40 AM	-0.7 ft	7:55 AM–11:30 AM	3h 35m	74 · Good
Jul 27, 2026 Mon	10:20 AM	-1.0 ft	8:30 AM–12:15 PM	3h 45m	70 · Good
Jul 28, 2026 Tue	10:57 AM	-1.2 ft	9:05 AM–12:55 PM	3h 50m	75 · Great
Jul 29, 2026 Wed	11:33 AM	-1.4 ft	9:40 AM–1:30 PM	3h 50m	77 · Great
Jul 30, 2026 Thu	12:08 PM	-1.3 ft	10:20 AM–2:00 PM	3h 40m	76 · Great
Jul 31, 2026 Fri	12:43 PM	-0.9 ft	11:00 AM–2:20 PM	3h 20m	74 · Good
Aug 1, 2026 Sat	1:18 PM	-0.2 ft	11:55 AM–2:35 PM	2h 40m	62 · Good
Aug 2, 2026 Sun	1:54 PM	0.8 ft	1:35 PM–2:15 PM	0h 40m	27 · Skip

Monthly calendars

July 2026 August 2026

What's in the pools right now

Research-grade observations within 5 km in the last 60 days, via iNaturalist (data © contributors, CC BY-NC).

Species	Scientific name	Observations
Horned Nudibranch	Hermissenda crassicornis	13
barnacle-eating dorid	Onchidoris bilamellata	11
Taylor's Seahare	Phyllaplysia taylori	10
Frilled Dogwinkle	Nucella lamellosa	10
Garden Snail	Cornu aspersum	10
Monterey Dorid	Doris montereyensis	9
Rough Keyhole Limpet	Diodora aspera	9
Striped Dogwinkle	Nucella ostrina	8
Gumboot Chiton	Cryptochiton stelleri	7
Lined Chiton	Tonicella lineata	6

Quick answers

When is the next good low tide at Seattle (Puget Sound)?

Jul 11, 2026 (Sat): a -2.3 ft low at 8:49 AM, walkable from 6:35 AM to 11:10 AM — score 100/100. Computed from NOAA station 9447130 predictions.

How low does the tide need to be at Seattle (Puget Sound)?

Tidewindow counts a window whenever the predicted height falls below +1.0 ft MLLW, and scores depth from +0.5 ft (0 points) to −2.0 ft (50 points). The lower the tide, the more of the intertidal zone is exposed — minus tides (below 0 ft) are when Alki Beach is at its best.

How many daylight minus tides does Seattle (Puget Sound) get in the next 30 days?

18 of the next 30 days' 18 minus tides overlap daylight by at least 30 minutes, as of 2026-07-04. The full list is in the table above.

Safety: tide predictions are astronomical forecasts, not observations — wind and swell change actual water levels. Follow posted rules at protected areas, and never turn your back on the ocean. See our methodology for exactly how windows and scores are computed.