Canada

Granthall Wreck

18–35 mMax Depth

boatEntry

50Species

Conditions Summary

Model forecast · local time (GMT-7)

Model conditions signal100/100

Waves

0.0 m

2.1 s

Swell

0.0 m

1.7 s

Current speed

0.4 km/h

flowing toward SE

Water temperature

13.5°C

Wind

4.1 km/h

→ SW

Sea level

0.6 m

rising

WavesCalm

SwellCalm

Current speedCalm

Planning window

15:30–15:00

Calmest model window

Forecast Overview

Sun, Oct 18Calm

Waves0.0–0.0 mCurrent speed0.4 km/h maxWater temperature13.5°C

Mon, Oct 19Calm

Waves0.1–0.1 mCurrent speed0.4 km/h maxWater temperature13.4°C

Tue, Oct 20Calm

Waves0.1–0.3 mCurrent speed0.3 km/h maxWater temperature13.2°C

TodayCalm

Waves0.0–0.1 mCurrent speed0.5 km/h maxWater temperature13.1°C

Next 72 hours

15:00

Waves: 0.0 m

Current speed: 0.4 km/h

Water temperature: 13.5°C

21:00

Waves: 0.0 m

Current speed: 0.4 km/h

Water temperature: 13.5°C

03:00

Waves: 0.1 m

Current speed: 0.4 km/h

Water temperature: 13.4°C

09:00

Waves: 0.1 m

Current speed: 0.4 km/h

Water temperature: 13.4°C

15:00

Waves: 0.1 m

Current speed: 0.4 km/h

Water temperature: 13.5°C

21:00

Waves: 0.1 m

Current speed: 0.3 km/h

Water temperature: 13.3°C

03:00

Waves: 0.1 m

Current speed: 0.2 km/h

Water temperature: 13.2°C

09:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 13.2°C

15:00

Waves: 0.3 m

Current speed: 0.3 km/h

Water temperature: 13.3°C

21:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 13.2°C

03:00

Waves: 0.1 m

Current speed: 0.3 km/h

Water temperature: 13.1°C

09:00

Waves: 0.1 m

Current speed: 0.4 km/h

Water temperature: 13.1°C

Catalog depth18–35 m

Data sources & field guideOpen-Meteo Marine + Weather APIs

Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.

Updated: cached data

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

May-Oct

Peak month

Aug 17.5°

Jan6.8°

Feb7.0°

Mar7.9°

Apr9.9°

May13.0°

Jun15.4°

Jul17.3°

Aug17.5°

Sep15.1°

Oct11.6°

Nov9.1°

Dec7.5°

Current: mild

Typical visibility: 12 m

Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.

Explore nearby centers on the map

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Dive Types

wrecksalt Waterintermediate Difficulty

Questions to ask a local operator

What are today's current, visibility, entry, and exit conditions?
Does the planned route stay within my certification and recent experience?
Are there local permits, conservation rules, or equipment requirements?

Common Species

12 km · nearby observations

Lingcod

Ophiodon elongatus

DeepLog24

Monterey sea-lemon

Doris montereyensis

DeepLog12

White-plumed anemone

Metridium farcimen

DeepLog10

California sea cucumber

Apostichopus californicus

DeepLog8

Scalyhead sculpin

Artedius harringtoni

DeepLog7

Purple sea star

Pisaster ochraceus

DeepLog6

High cockscomb

Anoplarchus purpurescens

DeepLog5

Leather star

Dermasterias imbricata

DeepLog5

Common feather star

Florometra serratissima

DeepLog4

Copper rockfish

Sebastes caurinus

DeepLog4

Grunt sculpin

Rhamphocottus richardsonii

DeepLog4

Longfin sculpin

Jordania zonope

DeepLog3

These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.

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Photos