United States

Isthmus

5–25 mMax Depth

boatEntry

23Species

Conditions Summary

Model forecast · local time (GMT-7)

Model conditions signal91/100

Waves

0.8 m

14.3 s

Swell

0.7 m

13.5 s

Current speed

0.2 km/h

flowing toward W

Water temperature

21.8°C

Wind

9.4 km/h

→ NW

Sea level

-0.3 m

rising

WavesWatch

SwellCalm

Current speedCalm

Planning window

22:30–22:00

Calmest model window

Forecast Overview

Sat, Oct 17Watch

Waves0.8–0.8 mCurrent speed0.2 km/h maxWater temperature21.9°C

Sun, Oct 18Watch

Waves0.8–1.0 mCurrent speed0.8 km/h maxWater temperature21.9°C

Mon, Oct 19Challenging

Waves1.0–1.3 mCurrent speed0.8 km/h maxWater temperature21.9°C

Tue, Oct 20Challenging

Waves1.0–1.4 mCurrent speed0.6 km/h maxWater temperature21.8°C

Next 72 hours

22:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 21.9°C

04:00

Waves: 0.8 m

Current speed: 0.7 km/h

Water temperature: 21.7°C

10:00

Waves: 0.9 m

Current speed: 0.6 km/h

Water temperature: 21.8°C

16:00

Waves: 1.0 m

Current speed: 0.0 km/h

Water temperature: 22.3°C

22:00

Waves: 1.0 m

Current speed: 0.4 km/h

Water temperature: 21.9°C

04:00

Waves: 1.1 m

Current speed: 0.7 km/h

Water temperature: 21.8°C

10:00

Waves: 1.2 m

Current speed: 0.5 km/h

Water temperature: 21.9°C

16:00

Waves: 1.2 m

Current speed: 0.2 km/h

Water temperature: 22.2°C

22:00

Waves: 1.3 m

Current speed: 0.4 km/h

Water temperature: 21.9°C

04:00

Waves: 1.3 m

Current speed: 0.6 km/h

Water temperature: 21.7°C

10:00

Waves: 1.2 m

Current speed: 0.6 km/h

Water temperature: 21.7°C

16:00

Waves: 1.1 m

Current speed: 0.6 km/h

Water temperature: 22.0°C

Catalog depth5–25 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

Year-round

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: mild

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 Isthmus before you dive. Feeds are provided by third parties and may occasionally be offline.

4 cameras

Public live camera

3.2 km awayOpenStreetMap

Open

Check is getting oldLast checked 642h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Sep 21, 2026

Public live camera

11.4 km awayOpenStreetMap

Open

Check is getting oldLast checked 642h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Sep 21, 2026

Public live camera

16.8 km awayOpenStreetMap

Open

Check is getting oldLast checked 642h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Sep 21, 2026

California Department of Transportation

41.4 km awayOpenStreetMap

Open

traffic

Check is getting oldLast checked 642h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Sep 21, 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

Scythe butterflyfish

Prognathodes falcifer

DeepLog3

California golden gorgonian

Muricea californica

DeepLog2

Garibaldi damselfish

Hypsypops rubicundus

DeepLog2

Kellet whelk

Kelletia kelletii

DeepLog2

Black croaker

Cheilotrema saturnum

DeepLog1

California moray

Gymnothorax mordax

DeepLog1

Colonial cup coral

Coenocyathus bowersi

DeepLog1

Crowned sea urchin

Centrostephanus coronatus

DeepLog1

Cup coral

Astrangia haimei

DeepLog1

Egg yolk jelly

Phacellophora camtschatica

DeepLog1

Fragile star

Linckia columbiae

DeepLog1

Giant kelpfish

Heterostichus rostratus

DeepLog1

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

DeepLog + OBIS →

Photos