Seattle (Puget Sound): September 2026 low tide calendar
NOAA 9447130Computed 2026-08-04 · NOAA station 9447130
September 2026 gives Seattle (Puget Sound) 19 low tides under +1.0 ft, of which 6 are daylight minus tides. The month's best window is Sep 7, 2026 (Mon) — a -0.9 ft low at 8:12 AM, walkable 6:25 AM–10:05 AM. 77 · Great
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Day color = best window that day: gold Exceptional · deep green Great · sea-green Good · sand Fair · grey none/night.
Every window in September 2026
Heights in feet MLLW. ✳ = federal holiday. Night lows score 0.
| Date | Low | Height | Window | Daylight | Score |
|---|---|---|---|---|---|
| Tue | 2:15 AM | 0.8 ft | 1:50 AM–2:30 AM | night | 0 · Skip |
| Wed | 3:00 AM | 0.0 ft | 1:50 AM–4:10 AM | night | 0 · Skip |
| Thu | 3:51 AM | -0.4 ft | 2:25 AM–5:20 AM | night | 0 · Skip |
| Fri | 4:49 AM | -0.6 ft | 3:10 AM–6:30 AM | night | 0 · Skip |
| Sat | 5:55 AM | -0.7 ft | 4:10 AM–7:40 AM | 1h 6m | 52 · Fair |
| Sun | 7:05 AM | -0.8 ft | 5:20 AM–8:55 AM | 2h 20m | 67 · Good |
| Mon ✳ | 8:12 AM | -0.9 ft | 6:25 AM–10:05 AM | 3h 29m | 77 · Great |
| Tue | 9:12 AM | -1.0 ft | 7:25 AM–11:05 AM | 3h 40m | 68 · Good |
| Wed | 10:04 AM | -0.9 ft | 8:30 AM–11:45 AM | 3h 15m | 65 · Good |
| Thu | 10:51 AM | -0.3 ft | 9:30 AM–12:10 PM | 2h 40m | 52 · Fair |
| Fri | 11:34 AM | 0.5 ft | 10:50 AM–12:15 PM | 1h 25m | 27 · Skip |
| Mon | 1:28 AM | 0.6 ft | 12:50 AM–2:10 AM | night | 0 · Skip |
| Tue | 2:06 AM | 0.2 ft | 1:00 AM–3:10 AM | night | 0 · Skip |
| Wed | 2:46 AM | 0.1 ft | 1:40 AM–4:00 AM | night | 0 · Skip |
| Thu | 3:30 AM | 0.4 ft | 2:30 AM–4:30 AM | night | 0 · Skip |
| Fri | 4:21 AM | 0.8 ft | 3:45 AM–5:05 AM | night | 0 · Skip |
| Mon | 12:21 AM | 0.1 ft | 11:20 PM–1:20 AM | night | 0 · Skip |
| Tue | 12:59 AM | -0.8 ft | 11:30 PM–2:30 AM | night | 0 · Skip |
| Wed | 1:41 AM | -1.5 ft | 11:50 PM–3:30 AM | night | 0 · Skip |
Predictions are astronomical forecasts, not observations — wind and pressure change actual water levels. Method: hourly NOAA series, linear-interpolated crossings, rounded to 5 minutes. Full details on the methodology page.