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Map of Isles of Shoals
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IntermediateBoat entry

Isles of Shoals

New Hampshire, United States
Open Water suggestedBoat entry5mm wetsuit typical

Boat dive — see Entry & access.

Isles of Shoals at a glance

Isles of Shoals is an intermediate boat dive site in New Hampshire, United States. Typically most favorable Jul · from 3 years of archive data. Divers commonly see Nudibranch, Pollock, and Cunner. Recent reports put the water around 17°C (63°F). Check the latest conditions and entry details before you go.

Marine model · graded 14h ago
0.4 mwaves — under half a meter expected

Tap a factor for its source and model point · Forecast 17°C · seasonal avg 18°C

Site hazards: Open-ocean exposure and swell, currents around the islands, cold water, boat traffic

Read the full hazards ↓

Dive windows this week

Best: Sat
Fri7:00–19:00
Sat7:00–19:00
Sun7:00–19:00
Mon7:00–19:00
Tue7:00–19:00
Wed7:00–19:00
Thu7:00–19:00

Favorable windowModerate window— no window

First light 5:49 · Sunrise 6:18 · Sunset 18:59

Source: Open-Meteo marine · model point 3.1 km from site · graded 14h ago

Forecast only — always assess conditions on site.

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: Pollock, Cunner, northern red anemone
Best time: Summer and early fall on calm days

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan45%6°C1.3 m
  2. Feb32%4°C1.3 m
  3. Mar31%4°C1.5 m
  4. Apr59%6°C1.2 m
  5. May68%11°C1.1 m
  6. Jun86%15°C0.8 m
  7. Jul87%17°C0.8 m
  8. Aug85%18°C0.8 m
  9. Sep76%18°C1.1 m
  10. Oct57%14°C1.2 m
  11. Nov51%11°C1.1 m
  12. Dec38%8°C1.3 m

July hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated June 2026

Site details

A cluster of rocky islands about six miles off the NH/ME coast, straddling the state line, that is the premier boat-diving destination for New Hampshire charters. Sites around Star, White, Lunging and Smuttynose Islands offer kelp-covered ledges, boulder fields and walls with abundant lobster, fish life and frequent harbor seal encounters, in some of the clearest water in the region.

boatreefwall

Open-ocean exposure and swell, currents around the islands, cold water, boat traffic

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