Staying Home Sucks, home
Port Ludlow Houses II
Port Ludlow, the nearest town, 9 km away. Photo: Jonathan Miske from United States, CC BY-SA 2.0, Wikimedia Commons

Case Shoal

Dive site · United States

Advanced divers and up

Is it worth the trip?

64Good out of 100 for your dates

Home sucks

Best on Mon 2: Sea: flat, Water 9 °C, Wind 2 kn

Each day of your trip, out of 100

Mon 2 · 65 out of 100

Sea
0.0 mflat
Wind
2 kn
Gusts
5kn
Air
10°C

Tue 3 · 64 out of 100

Sea
0.0 mflat
Wind
3 kn
Gusts
10kn
Air
13°C

Wed 4 · 63 out of 100

Sea
0.0 mflat
Wind
6 kn
Gusts
12kn
Air
14°C

Thu 5 · 63 out of 100

Sea
0.1 mflat
Wind
6 kn
Gusts
11kn
Air
12°C

Fri 6 · 64 out of 100

Sea
0.1 mflat
Wind
3 kn
Gusts
11kn
Air
9°C

Sat 7 · 64 out of 100

Sea
0.0 mflat
Wind
2 kn
Gusts
7kn
Air
13°C

Sun 8 · 59 out of 100

Sea
0.1 mflat
Wind
12 kn
Gusts
26knboats in
Air
12°C

Tap a day for sea, wind and water. Full forecast

Forecast: next 10 days

Full forecast
  1. Sun 165, good
  2. Mon 265, good
  3. Tue 364, good
  4. Wed 463, good
  5. Thu 563, good
  6. Fri 664, good
  7. Sat 764, good
  8. Sun 859, fair
  9. Mon 965, good
  10. Tue 1063, good

The site in five facts

  • Down to 15 mits deepest
  • From a boathow you get in
  • Advancedand up
  • Water 9 °Cdrysuit
  • Faces SEswell from there reaches it

Full forecast

every day, every number

The score doesn't know currents, the visibility on the day or your certification.

Suits Advanced divers and up, as a dive guide states it. Scored for Advanced divers.

Sea and wind forecast and score for each day at Case Shoal
DayScoreSeaWindGustsAir
Sun 1Nov65, good0.0 mflat0 kn4kn11°C
Mon 2Nov65, good0.0 mflat2 kn5kn10°C
Tue 3Nov64, good0.0 mflat3 kn10kn13°C
Wed 4Nov63, good0.0 mflat6 kn12kn14°C
Thu 5Nov63, good0.1 mflat6 kn11kn12°C
Fri 6Nov64, good0.1 mflat3 kn11kn9°C
Sat 7Nov64, good0.0 mflat2 kn7kn13°C
Sun 8Nov59, fair0.1 mflat12 kn26knboats in12°C
Mon 9Nov65, good0.0 mflat1 kn10kn12°C
Tue 10Nov63, good0.0 mflat8 kn15kn16°C

Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More

Tide

  • Sun 1 NovHigh 05:40 +0.8 mLow 11:17 −0.2 mHigh 16:50 +1.1 m
  • Mon 2 NovLow 00:12 −1.5 mHigh 06:50 +0.8 mLow 12:53 −0.4 mHigh 18:16 +0.8 m
  • Tue 3 NovLow 01:26 −1.3 mHigh 07:56 +0.9 mLow 14:16 −0.7 mHigh 19:49 +0.8 m

Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.

Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.

Map

the site and its town

Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.

The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.

One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.

About

the place in full, sources, credits

About Case Shoal

A reef dive. It goes down to 15 m. You get in from a boat. It suits Advanced divers and up, as a dive guide states it. The coast faces SE: swell from the SE reaches it, and wind from the NW blows out to sea. No dive centre within 10 km, the nearest 22 km away. The sea is about 8°C in January, its coldest month (drysuit), and 12°C in August, its warmest (7 mm semi-dry or a drysuit). The town to stay in is Port Ludlow.

  • What it is Reef.
  • How deep Down to 15 m.
  • Getting in From a boat.
  • Who it suits Suits Advanced divers and up, as a dive guide states it.
  • Dive centres No dive centre within 10 km, the nearest 22 km away.

Water about 9°C: drysuit. Typical sea temperature for the time of year, not a forecast.

The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).

Rough cost (estimate): about US$1,050–US$1,910 each

about US$1,050–US$1,910 each · 6 nights, 2 sharing: flights, hire car, stay, food.

Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

How we worked it out 
Rough cost per person for this trip
WhatHow we worked it outEach
Flightsreturn MDW to SEA, estimated from distance and season, 1 airline on the route, with a hold bagabout US$248–US$516
Hire car6 days, sharedabout US$154–US$255
Stay6 nights, a mid-range double, sharedabout US$301–US$502
Food7 days eating outabout US$342–US$636
Totalabout US$1,050–US$1,910

Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.

Where to stay: Port Ludlow

Closest

Port Ludlow

15 min by car · 5 places to stay

about US$114/nightcountry average

See 5 places to stay in Port Ludlow · Booking.com

About Port Ludlow its beds, food and every spot near it

About US$114 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.

Getting there: about 7h 15m

About 7h 15m door to door from Chicago

Fly MDW → SEA, direct, then 1h 15m by road

An estimate, one way; the journey never changes the score.

In the water

Dive centres nearby

  • Edmonds Underwater Sports 22 km

The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits

What you might see

Animals divers and surveys have recorded within 2 km of this site in the last 15 years. A record says someone saw it here, not that you will.

  • Common Porpoise Phocoena phocoenaWhale or dolphin

    Seen in 8 records.

  • Common seal Phoca vitulinaSeal or sea lion

    Seen in 12 records, mostly Apr to Sep.

Records: OBIS (Ocean Biodiversity Information System, IOC-UNESCO), from the datasets named here, CC0 and CC BY records only. Names: WoRMS, through OBIS; common names from Wikidata. Largest datasets here: NWTRC JP04 Aerial Surveys 2014-2015; NWTRC JP02 Marine Mammal Aerial Surveys in the Puget Sound 2013; NWTRC Aerial Surveys in Puget Sound in 2016. Credits

What is under the water this week (visibility, current) no free forecast gives. Ask a dive centre before you book.