How deep is Dublin Lake?

Dublin Lake ranges from 0 to 30.5 metres deep (0–100 feet) — a deep dive at its limit. It is a freshwater site rated as intermediate difficulty. Depths vary across the site, so plan your profile to your training and verify conditions locally.

Is Dublin Lake a shore dive or a boat dive?

Dublin Lake is a shore dive — you can enter from land. The entry is recorded as an easy walk-in. The entry area is recorded as sheltered from surge. No facilities are recorded at the site, and cell service is recorded as good. Entry details and parking notes, where known, are listed in the access section of this page.

Can beginners dive Dublin Lake?

Dublin Lake is rated as intermediate difficulty, which may not suit new divers. Listed depths run from 0 to 30.5 metres (0–100 feet). Access is from shore, with the entry recorded as an easy walk-in. Consider your experience level, conditions, and local guidance before planning.

When is the best time to dive Dublin Lake?

The best time to dive Dublin Lake is typically Summer and early fall. Seasonal closures are recorded: Ice cover in winter. Conditions vary, so check the latest reports and forecasts on the dive site page before your trip.

What will I see at Dublin Lake?

Divers at Dublin Lake in United States commonly report sightings of Lake trout, Smallmouth bass, Crayfish, Yellow perch, and Rainbow trout. Smallmouth bass, Crayfish, and Yellow perch are recorded as common sightings, while Rainbow trout is seasonal, while Lake trout is reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

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IntermediateShore entry

Dublin Lake

New Hampshire, United StatesDirections

Open Water suggested0–31 m depthShore entry

Dublin Lake at a glance

Dublin Lake is an intermediate shore dive site in New Hampshire, United States with depths of 0–30.5 m (0–100 ft). Typically most favorable Jul · from 3 years of archive data. Divers commonly see Lake trout, Smallmouth bass, and Crayfish. Check the latest conditions and entry details before you go.

Wind model · graded 2h ago

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Tap a factor for its source and model point

Site hazards: Altitude (use altitude dive tables/computer setting), cold thermoclines, deep silt bottom, roadside traffic while gearing up

Read the full hazards ↓

Dive windows this week

Best: Tue

Fri14:00–20:00

Sat7:00–20:00

Sun8:00–20:00

Mon11:00–19:00

Tue7:00–19:00

Wed7:00–19:00

Thu7:00–19:00

Favorable windowModerate window— no window

First light 5:55 · Sunrise 6:24 · Sunset 19:05

Source: Open-Meteo wind · graded 2h ago

Forecast only — always assess conditions on site.

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: Smallmouth bass, Crayfish, Yellow perch

Best time: Summer and early fall

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.

Jan81% 10 kn
Feb86% 11 kn
Mar74% 11 kn
Apr79% 10 kn
May89% 9 kn
Jun96% 9 kn
Jul98% 8 kn
Aug97% 8 kn
Sep97% 7 kn
Oct96% 9 kn
Nov79% 11 kn
Dec83% 10 kn

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

No dive shops mapped within 25 km. Know one? Add it to the map.

Data updated June 2026

Site details

A clear 240-acre glacial lake at about 1,480 feet elevation beneath Mount Monadnock, popular with regional divers and training classes. Shore access points along the northeastern shore off Route 101 lead to a bottom that slopes steeply to about 60 feet past glacial boulder fields before flattening into silt that reaches 90-110 feet. Visibility averages over 30 feet, unusually good for a New England lake; altitude diving procedures apply.

shore

Altitude (use altitude dive tables/computer setting), cold thermoclines, deep silt bottom, roadside traffic while gearing up

Reviews

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