Guam

Spanish Steps

3–18 mMax Depth

shoreEntry

37Species

Conditions Summary

Model forecast · local time (GMT+10)

Model conditions signal62/100

Waves

2.4 m

7.8 s

Swell

1.7 m

6.5 s

Current speed

0.4 km/h

flowing toward SW

Water temperature

28.2°C

Wind

17.7 km/h

→ SE

Sea level

0.6 m

WavesChallenging

SwellChallenging

Current speedCalm

Forecast Overview

Mon, Oct 19Challenging

Waves2.3–2.4 mCurrent speed0.6 km/h maxWater temperature28.2°C

Tue, Oct 20Challenging

Waves1.6–2.2 mCurrent speed2.1 km/h maxWater temperature28.4°C

TodayChallenging

Waves1.5–1.6 mCurrent speed1.3 km/h maxWater temperature28.4°C

TomorrowChallenging

Waves1.4–1.5 mCurrent speed1.3 km/h maxWater temperature28.4°C

Next 72 hours

21:00

Waves: 2.4 m

Current speed: 0.2 km/h

Water temperature: 28.2°C

03:00

Waves: 2.1 m

Current speed: 1.3 km/h

Water temperature: 28.2°C

09:00

Waves: 1.8 m

Current speed: 1.3 km/h

Water temperature: 28.3°C

15:00

Waves: 1.7 m

Current speed: 2.1 km/h

Water temperature: 28.7°C

21:00

Waves: 1.6 m

Current speed: 1.6 km/h

Water temperature: 28.4°C

03:00

Waves: 1.6 m

Current speed: 1.0 km/h

Water temperature: 28.3°C

09:00

Waves: 1.6 m

Current speed: 0.7 km/h

Water temperature: 28.3°C

15:00

Waves: 1.6 m

Current speed: 1.2 km/h

Water temperature: 28.6°C

21:00

Waves: 1.5 m

Current speed: 1.2 km/h

Water temperature: 28.5°C

03:00

Waves: 1.5 m

Current speed: 1.1 km/h

Water temperature: 28.3°C

09:00

Waves: 1.5 m

Current speed: 0.9 km/h

Water temperature: 28.4°C

15:00

Waves: 1.5 m

Current speed: 1.1 km/h

Water temperature: 28.5°C

Catalog depth3–18 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

Jan-Jun

Peak month

Jul 29.4°

Jan27.9°

Feb27.6°

Mar27.7°

Apr28.1°

May28.8°

Jun29.3°

Jul29.4°

Aug29.4°

Sep29.4°

Oct29.3°

Nov29.0°

Dec28.4°

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.

Explore nearby centers on the map

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Dive Types

reefsalt Waterbeginner 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

Arc-eye hawkfish

Paracirrhites arcatus

DeepLog3

Flame hawkfish

Neocirrhites armatus

DeepLog3

Mirror basslet

Pseudanthias pleurotaenia

DeepLog3

Steinitz' prawn-goby

Amblyeleotris steinitzi

DeepLog3

Ambanoro prawn-goby

Vanderhorstia ambanoro

DeepLog2

Comical blenny

Ecsenius opsifrontalis

DeepLog2

Peacock flounder

Bothus mancus

DeepLog2

Speckled butterflyfish

Chaetodon citrinellus

DeepLog2

Blackspotted puffer

Arothron nigropunctatus

DeepLog1

Blotcheye soldierfish

Myripristis berndti

DeepLog1

Bluefin trevally

Caranx melampygus

DeepLog1

Bluestreak cleaner wrasse

Labroides dimidiatus

DeepLog1

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

DeepLog + OBIS →

Photos