Second Cathedral

North America › United States of America (USA) › Hawaii

Second Cathedral

12–6 mMax Depth
BoatEntry
52Species

Conditions Summary

Model forecast · local time (GMT-10)

Model conditions signal81/100
Waves
1.1 m
10.0 s
Swell
0.7 m
10.8 s
Current speed
0.4 km/h
flowing toward N
Water temperature
27.5°C
Wind
7.3 km/h
→ NW
Sea level
0.8 m
rising
WavesChallenging
SwellCalm
Current speedCalm

Forecast Overview

Sun, Oct 18Challenging
Waves1.1–1.2 mCurrent speed1.1 km/h maxWater temperature27.8°C
TodayChallenging
Waves1.1–1.2 mCurrent speed0.7 km/h maxWater temperature27.6°C
TomorrowChallenging
Waves1.1–1.2 mCurrent speed0.9 km/h maxWater temperature27.6°C
Wed, Oct 21Challenging
Waves1.0–1.1 mCurrent speed0.7 km/h maxWater temperature27.5°C
Next 72 hours
08:00
Waves: 1.1 m
Current speed: 0.4 km/h
Water temperature: 27.5°C
14:00
Waves: 1.1 m
Current speed: 1.1 km/h
Water temperature: 28.0°C
20:00
Waves: 1.2 m
Current speed: 0.7 km/h
Water temperature: 27.7°C
02:00
Waves: 1.2 m
Current speed: 0.6 km/h
Water temperature: 27.5°C
08:00
Waves: 1.1 m
Current speed: 0.5 km/h
Water temperature: 27.5°C
14:00
Waves: 1.1 m
Current speed: 0.7 km/h
Water temperature: 27.9°C
20:00
Waves: 1.2 m
Current speed: 0.6 km/h
Water temperature: 27.7°C
02:00
Waves: 1.2 m
Current speed: 0.5 km/h
Water temperature: 27.5°C
08:00
Waves: 1.1 m
Current speed: 0.6 km/h
Water temperature: 27.5°C
14:00
Waves: 1.2 m
Current speed: 0.8 km/h
Water temperature: 27.9°C
20:00
Waves: 1.1 m
Current speed: 0.6 km/h
Water temperature: 27.6°C
02:00
Waves: 1.1 m
Current speed: 0.6 km/h
Water temperature: 27.5°C
Catalog depth12–6 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

Apr-Oct

Peak month

Sep 27.0°

Jan24.7°
Feb24.4°
Mar24.4°
Apr24.7°
May25.3°
Jun25.8°
Jul26.3°
Aug26.7°
Sep27.0°
Oct27.0°
Nov26.3°
Dec25.4°
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.

Nearby live cameras

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

1 camera

Maui Live Cam

31.2 km awayOpenStreetMap
Check is getting oldLast checked 313h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Oct 5, 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

Loading…

Dive Types

ReefCavernOceancaveSalt 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
Hawaiian dascyllus
Dascyllus albisella
DeepLog3
Yellow tang
Zebrasoma flavescens
DeepLog3
Arc-eye hawkfish
Paracirrhites arcatus
DeepLog2
Blue-stripe blenny
Plagiotremus ewaensis
DeepLog2
Cleaner wrasse
Labroides phthirophagus
DeepLog2
Cyane's octopus
Octopus cyanea
DeepLog2
Orangespine unicornfish
Naso lituratus
DeepLog2
Scythe triggerfish
Sufflamen bursa
DeepLog2
Sea star starfish
Linckia multifora
DeepLog2
Tiger cowrie
Cypraea tigris
DeepLog2
Turkey moray
Gymnothorax meleagris
DeepLog2
Ardeadoris tomsmithi
DeepLog1
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Second Cathedral photo 2
Second Cathedral photo 3
Second Cathedral photo 4
Second Cathedral photo 5
Find a dive center