Scuba Diving · Puget Sound

Scuba Diving in Puget Sound

Cold-water diving at its best: giant Pacific octopus, wolf eels, and vivid invertebrate life at sites like Edmonds Underwater Park, Alki, and Redondo. Counterintuitively, vis is often best in winter when the plankton dies back. Currents rule the dive planning here.

Live conditions, water-clarity forecast, and water temperature for scuba diving in Puget Sound, WA. Open the app for a live verdict and a tappable factor breakdown, free, no signup. Pro extends the forecast to 8 days.

Open live conditions →

Conditions snapshot: Oct 5, 2026

Visibility

16 ft

9–32 ft range

Wind

4 kts

Wave

0.1 ft

Swell

0.1 ft

Period

1.3s

Snapshot from Oct 5, 2026. Live values, factor breakdowns, and 8-day forecast in the app.

Notable species

Puget Sound is known for:

LingcodRockfishCabezonKelp Greenling

Typical water visibility

Summer visibility around Puget Sound is commonly reported in the 5–30 ft range, a community-guidance estimate, not a measurement. Rain, river discharge, swell mixing, and seasonality can shift real conditions dramatically day to day.

That's exactly why Submarius exists. The in-app clarity forecast starts from this coast's typical clarity for the time of year, built from in water measurements and satellite ocean color, then subtracts wave stirring, river and runoff plumes, and tide movement to estimate how far you'll actually see, shown as a low to high range, not a seasonal average.

How the clarity forecast works →

Clearest months at Puget Sound

Model climatology from the baked clarity ceiling: the typical day and the best case (90th percentile) visibility for each month, with a seasonal algae bloom proneness flag. These are labelled model estimates, not measurements.

Month	Typical ft	Best case ft	Bloom risk
Jan	16	33	low
Feb	16	33	low
Mar	16	33	low
Apr	16	33	low
May	16	33	low
Jun	16	33	low
Jul	16	33	low
Aug	18	33	low
Sep	16	33	low
Oct	16	33	low
Nov	16	33	low
Dec	16	33	low

Ceiling artifact global-reef-v10-obis-world; table baked Oct 5, 2026.

What Submarius shows for Puget Sound

Verdict score (0–10). Aggregates wind, swell, tide, moon, and water clarity into one decisive number.
Best window. The 2–3 hour stretch each day when conditions peak.
8-day forecast. Auto-scaled line graph showing which day this week is trending good.
Water clarity forecast. Secchi-depth estimate with uncertainty bounds and the next best vis window.
Free, anonymous. Check conditions with location on, no signup until you want to save spots or post reports.

Safety in the water

Submarius ships OCEARCH tagged-shark alerts, community shark sightings, SOS, and buddy GPS sharing, permanently free, regardless of subscription tier. For Puget Sound specifically, the app shows any recent tagged sharks within range and lets you enable push notifications for sightings on your active tiles.