Sentinel Rock

United States

Sentinel Rock

15–17 mMax Depth
boatEntry
17Species

Conditions Summary

Model forecast · local time (GMT-7)

Model conditions signal71/100
Waves
1.2 m
12.9 s
Swell
0.9 m
12.5 s
Current speed
0.8 km/h
flowing toward NW
Water temperature
21.8°C
Wind
5.1 km/h
→ SW
Sea level
0.6 m
falling
WavesChallenging
SwellWatch
Current speedCalm

Forecast Overview

Mon, Oct 19Challenging
Waves1.2–1.3 mCurrent speed0.8 km/h maxWater temperature22.1°C
Tue, Oct 20Challenging
Waves1.1–1.4 mCurrent speed0.8 km/h maxWater temperature22.0°C
TodayChallenging
Waves1.1–1.1 mCurrent speed1.3 km/h maxWater temperature22.0°C
TomorrowChallenging
Waves1.1–1.1 mCurrent speed0.9 km/h maxWater temperature22.0°C
Next 72 hours
07:00
Waves: 1.2 m
Current speed: 0.8 km/h
Water temperature: 21.8°C
13:00
Waves: 1.2 m
Current speed: 0.4 km/h
Water temperature: 22.1°C
19:00
Waves: 1.3 m
Current speed: 0.4 km/h
Water temperature: 22.4°C
01:00
Waves: 1.3 m
Current speed: 0.7 km/h
Water temperature: 21.9°C
07:00
Waves: 1.3 m
Current speed: 0.5 km/h
Water temperature: 21.9°C
13:00
Waves: 1.2 m
Current speed: 0.5 km/h
Water temperature: 22.1°C
19:00
Waves: 1.1 m
Current speed: 0.7 km/h
Water temperature: 22.1°C
01:00
Waves: 1.1 m
Current speed: 0.8 km/h
Water temperature: 21.9°C
07:00
Waves: 1.1 m
Current speed: 0.6 km/h
Water temperature: 21.9°C
13:00
Waves: 1.1 m
Current speed: 1.2 km/h
Water temperature: 21.9°C
19:00
Waves: 1.1 m
Current speed: 1.2 km/h
Water temperature: 22.1°C
01:00
Waves: 1.1 m
Current speed: 0.9 km/h
Water temperature: 22.1°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.

Nearby live cameras

Check the water around Sentinel Rock before you dive. Feeds are provided by third parties and may occasionally be offline.

4 cameras

Public live camera

5.1 km awayOpenStreetMap
Open
Checked todayLast checked 9h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Oct 19, 2026

Public live camera

7.6 km awayOpenStreetMap
Open
Checked todayLast checked 9h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Oct 19, 2026

Public live camera

16.1 km awayOpenStreetMap
Open
Checked todayLast checked 9h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Oct 19, 2026

California Department of Transportation

49.6 km awayOpenStreetMap
Open

traffic

Checked todayLast checked 9h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Oct 19, 2026

Live availability is controlled by each camera provider. Use the feed as a quick surface check and confirm current conditions with a local dive operator.

Explore nearby centers on the map

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Dive Types

reefsalt 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
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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