Sentinel Rock

United States

Sentinel Rock

15–17 mMax Depth
boatEntry
17Species

Conditions Summary

Model forecast · local time (GMT-7)

Planning signal71/100
Waves
1.3 m
12.6 s
Swell
1.2 m
11.7 s
Current speed
0.4 km/h
flowing toward S
Water temperature
23.6°C
Wind
10.5 km/h
→ W
Sea level
1.0 m
falling
WavesChallenging
SwellWatch
Current speedCalm

Forecast Overview

TodayChallenging
Waves1.3–1.4 mCurrent speed0.6 km/h maxWater temperature23.4°C
TomorrowChallenging
Waves1.4–1.6 mCurrent speed0.8 km/h maxWater temperature22.9°C
Mon, Sep 7Challenging
Waves1.4–1.6 mCurrent speed0.4 km/h maxWater temperature22.9°C
Tue, Sep 8Challenging
Waves1.2–1.4 mCurrent speed0.6 km/h maxWater temperature22.8°C
Next 72 hours
16:00
Waves: 1.3 m
Current speed: 0.2 km/h
Water temperature: 23.6°C
22:00
Waves: 1.4 m
Current speed: 0.6 km/h
Water temperature: 23.2°C
04:00
Waves: 1.4 m
Current speed: 0.6 km/h
Water temperature: 22.9°C
10:00
Waves: 1.4 m
Current speed: 0.4 km/h
Water temperature: 22.8°C
16:00
Waves: 1.5 m
Current speed: 0.7 km/h
Water temperature: 22.9°C
22:00
Waves: 1.5 m
Current speed: 0.4 km/h
Water temperature: 22.8°C
04:00
Waves: 1.6 m
Current speed: 0.4 km/h
Water temperature: 22.6°C
10:00
Waves: 1.6 m
Current speed: 0.4 km/h
Water temperature: 22.7°C
16:00
Waves: 1.5 m
Current speed: 0.4 km/h
Water temperature: 23.3°C
22:00
Waves: 1.4 m
Current speed: 0.2 km/h
Water temperature: 22.9°C
04:00
Waves: 1.3 m
Current speed: 0.5 km/h
Water temperature: 22.7°C
10:00
Waves: 1.2 m
Current speed: 0.3 km/h
Water temperature: 22.8°C
Catalog depth15–17 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

May-Nov

Peak month

Aug 20.6°

Jan15.1°
Feb15.0°
Mar15.2°
Apr15.7°
May16.9°
Jun18.2°
Jul19.8°
Aug20.6°
Sep20.4°
Oct19.3°
Nov17.6°
Dec15.8°
Current: moderate
Typical visibility: 15 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

reefsalt Waterintermediate Difficulty

Data source & current conditions

Profile facts were imported from DeepLog. ScubaProof adds nearby-center links and presents the recorded fields without treating missing data as confirmation. Conditions, access, permits, and site suitability can change; confirm them with a local operator before diving.

View the source profile →

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
Sun anemone
Anthopleura sola
DeepLog4
California mussel
Mytilus californianus
DeepLog2
California scorpionfish
Scorpaena guttata
DeepLog2
California sea lion
Zalophus californianus
DeepLog2
Giant kelpfish
Heterostichus rostratus
DeepLog2
Owl limpet
Lottia gigantea
DeepLog2
Purple sea star
Pisaster ochraceus
DeepLog2
Small violet snail
Janthina umbilicata
DeepLog2
By the wind sailor
Velella velella
DeepLog1
Checkered limpet
Lottia strigatella
DeepLog1
Colonial sand tube worm
Phragmatopoma californica
DeepLog1
Disc hydroid
Porpita porpita
DeepLog1
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS

Photos

Sentinel Rock photo 2
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