Guam

Gun Beach

3–18 mMax Depth

shoreEntry

91Species

Conditions Summary

Model forecast · local time (GMT+10)

Model conditions signal61/100

Waves

1.3 m

8.3 s

Swell

0.9 m

7.4 s

Current speed

1.7 km/h

flowing toward NE

Water temperature

28.6°C

Wind

12.9 km/h

→ E

Sea level

0.7 m

falling

WavesChallenging

SwellWatch

Current speedWatch

Forecast Overview

Tue, Oct 20Challenging

Waves1.2–1.3 mCurrent speed1.7 km/h maxWater temperature28.4°C

TodayChallenging

Waves1.2–1.3 mCurrent speed3.0 km/h maxWater temperature28.4°C

TomorrowChallenging

Waves1.3–1.5 mCurrent speed2.9 km/h maxWater temperature28.5°C

Fri, Oct 23Challenging

Waves1.4–1.5 mCurrent speed3.4 km/h maxWater temperature28.3°C

Next 72 hours

17:00

Waves: 1.3 m

Current speed: 1.6 km/h

Water temperature: 28.6°C

23:00

Waves: 1.2 m

Current speed: 1.1 km/h

Water temperature: 28.3°C

05:00

Waves: 1.3 m

Current speed: 2.3 km/h

Water temperature: 28.3°C

11:00

Waves: 1.3 m

Current speed: 1.7 km/h

Water temperature: 28.4°C

17:00

Waves: 1.3 m

Current speed: 1.4 km/h

Water temperature: 28.6°C

23:00

Waves: 1.3 m

Current speed: 2.9 km/h

Water temperature: 28.5°C

05:00

Waves: 1.4 m

Current speed: 1.3 km/h

Water temperature: 28.4°C

11:00

Waves: 1.4 m

Current speed: 2.5 km/h

Water temperature: 28.4°C

17:00

Waves: 1.5 m

Current speed: 1.8 km/h

Water temperature: 28.6°C

23:00

Waves: 1.5 m

Current speed: 2.9 km/h

Water temperature: 28.4°C

05:00

Waves: 1.5 m

Current speed: 1.7 km/h

Water temperature: 28.3°C

11:00

Waves: 1.5 m

Current speed: 3.1 km/h

Water temperature: 28.3°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.