North America › United States of America (USA) › New Hampshire

Isles of Shoals Duck Island and Shag Rock

3 mMax Depth

BoatEntry

3Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal71/100

Waves

1.4 m

8.7 s

Swell

1.4 m

7.5 s

Current speed

0.2 km/h

flowing toward S

Water temperature

13.5°C

Wind

29.8 km/h

→ N

Sea level

0.3 m

falling

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

Tue, Oct 20Challenging

Waves1.4–1.6 mCurrent speed0.4 km/h maxWater temperature13.6°C

TodayChallenging

Waves1.6–2.1 mCurrent speed0.6 km/h maxWater temperature13.4°C

TomorrowChallenging

Waves1.4–2.1 mCurrent speed0.7 km/h maxWater temperature13.3°C

Fri, Oct 23Challenging

Waves1.1–1.4 mCurrent speed0.6 km/h maxWater temperature13.1°C

Next 72 hours

07:00

Waves: 1.4 m

Current speed: 0.2 km/h

Water temperature: 13.5°C

13:00

Waves: 1.6 m

Current speed: 0.2 km/h

Water temperature: 13.6°C

19:00

Waves: 1.5 m

Current speed: 0.2 km/h

Water temperature: 13.6°C

01:00

Waves: 1.7 m

Current speed: 0.5 km/h

Water temperature: 13.5°C

07:00

Waves: 1.8 m

Current speed: 0.5 km/h

Water temperature: 13.4°C

13:00

Waves: 1.9 m

Current speed: 0.5 km/h

Water temperature: 13.4°C

19:00

Waves: 2.0 m

Current speed: 0.6 km/h

Water temperature: 13.3°C

01:00

Waves: 2.1 m

Current speed: 0.3 km/h

Water temperature: 13.3°C

07:00

Waves: 1.9 m

Current speed: 0.3 km/h

Water temperature: 13.2°C

13:00

Waves: 1.6 m

Current speed: 0.2 km/h

Water temperature: 13.4°C

19:00

Waves: 1.5 m

Current speed: 0.7 km/h

Water temperature: 13.3°C

01:00

Waves: 1.3 m

Current speed: 0.6 km/h

Water temperature: 13.1°C

Catalog depth3 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.

Explore nearby centers on the map

Loading…

Dive Types

OceanSalt Water

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

Crab

From site catalogue

Lobster

From site catalogue

Seal

From site catalogue

Atlantic cod

Gadus morhua

Nearby OBIS observations122

Carcinus maenas

Nearby OBIS observations6

Somateria mollissima

Nearby OBIS observations5

Northern Gannet

Morus bassanus

Nearby OBIS observations4

lobster american

Homarus americanus

Nearby OBIS observations4

Great Black-backed Gull

Larus marinus

Nearby OBIS observations3

Larus smithsonianus

Nearby OBIS observations3

Nucella lapillus

Nearby OBIS observations3

alewife

Alosa pseudoharengus

Nearby OBIS observations3

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

OBIS source →

Photos

Isles of Shoals Duck Island and Shag Rock photo 2