United States

Maintop Island

15–18 mMax Depth

boatEntry

26Species

Conditions Summary

Model forecast · local time (GMT-7)

Model conditions signal62/100

Waves

2.6 m

10.6 s

Swell

2.2 m

9.3 s

Current speed

0.3 km/h

flowing toward NE

Water temperature

17.7°C

Wind

26.2 km/h

→ NW

Sea level

0.4 m

rising

WavesChallenging

SwellChallenging

Current speedCalm

Forecast Overview

Mon, Oct 19Challenging

Waves1.9–2.6 mCurrent speed0.3 km/h maxWater temperature17.6°C

Tue, Oct 20Challenging

Waves1.8–2.6 mCurrent speed0.7 km/h maxWater temperature17.5°C

TodayChallenging

Waves1.5–2.4 mCurrent speed0.8 km/h maxWater temperature17.4°C

TomorrowChallenging

Waves1.5–1.5 mCurrent speed0.2 km/h maxWater temperature17.4°C

Next 72 hours

05:00

Waves: 2.6 m

Current speed: 0.3 km/h

Water temperature: 17.7°C

11:00

Waves: 2.5 m

Current speed: 0.2 km/h

Water temperature: 17.6°C

17:00

Waves: 2.2 m

Current speed: 0.2 km/h

Water temperature: 17.6°C

23:00

Waves: 1.9 m

Current speed: 0.3 km/h

Water temperature: 17.6°C

05:00

Waves: 1.9 m

Current speed: 0.4 km/h

Water temperature: 17.5°C

11:00

Waves: 2.3 m

Current speed: 0.4 km/h

Water temperature: 17.5°C

17:00

Waves: 2.6 m

Current speed: 0.7 km/h

Water temperature: 17.7°C

23:00

Waves: 2.5 m

Current speed: 0.2 km/h

Water temperature: 17.4°C

05:00

Waves: 2.1 m

Current speed: 0.4 km/h

Water temperature: 17.3°C

11:00

Waves: 1.8 m

Current speed: 0.6 km/h

Water temperature: 17.3°C

17:00

Waves: 1.7 m

Current speed: 0.6 km/h

Water temperature: 17.6°C

23:00

Waves: 1.5 m

Current speed: 0.2 km/h

Water temperature: 17.5°C

Catalog depth15–18 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.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Jul-Nov

Peak month

Sep 14.4°

Jan12.0°

Feb12.0°

Mar12.0°

Apr11.5°

May11.6°

Jun12.1°

Jul13.2°

Aug14.1°

Sep14.4°

Oct13.9°

Nov13.3°

Dec12.5°

Current: mild

Typical visibility: 20 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.

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Dive Types

salt 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

California sea lion

Zalophus californianus

DeepLog53

Northern elephant seal

Mirounga angustirostris

DeepLog44

Northern sea lion

Eumetopias jubatus

DeepLog32

Grey whale

Eschrichtius robustus

DeepLog19

Bunch whale

Megaptera novaeangliae

DeepLog2

By the wind sailor

Velella velella

DeepLog2

Northern fur seal

Callorhinus ursinus

DeepLog2

Purple urchin purple urchin

Strongylocentrotus purpuratus

DeepLog2

Rosy sculpin

Oligocottus rubellio

DeepLog2

Bald sculpin

Clinocottus recalvus

DeepLog1

Bat star

Patiria miniata

DeepLog1

Californian anchovy

Engraulis mordax

DeepLog1

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

DeepLog + OBIS →

Photos