New England, United States
    Thompson Island

    Minots Ledge

    Best months: Jul–Sep

    Protected Area

    Thompson Island

    Why dive here

    With 35+ marine species recorded in the area - including nurse sharks - Minots Ledge offers some of New England's richest reef diving. Water ranges 4-19°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeNurse Sharks · 35+ species recorded
    Water4-19°C · warmest July, August, September
    CharacterReef dive

    Minots Ledge isn’t one of those warm-water, easy-breezy dives. This is New England, remember? It’s a proper expedition, a commitment, and it absolutely delivers if you’re up for the challenge. We love Minots for its raw, untamed energy. The reef itself is rugged, a jumble of boulders and rock formations sculpted by relentless currents and waves. You’re not getting coral gardens here; think kelp forests swaying in the surge, revealing a fascinating world beneath. Diving Minots, you’ll encounter some seriously robust critters. We often spot big lobsters tucked into crevices, their antennae waving as you pass. The schooling fish can be incredible, particularly the American shad in season, swirling in dense clouds. Keep an eye out for skates and rays hugging the bottom, their flat bodies almost disappearing against the rocky substrate. This isn’t a dive for the novice, or for anyone who gets easily rattled by a bit of chop. Strong currents are a regular feature, making it a drift dive much of the time, and visibility can be variable. But when it’s good, the clarity can be surprisingly decent, allowing you to really appreciate the scale of the ledge. Our best advice? Go with a local charter who knows the tides and slack water times intimately. They’re the key to a truly rewarding dive here.

    Safety Notes

    Cold water this month (avg 15°C). Drysuit or thick wetsuit (7mm+) recommended.

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    Conditions

    Ocean conditions, forecast and tides for Minots Ledge

    Minots Ledge Ocean Conditions

    Monthly averages for Minots Ledge, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (42.6, -70.6) (0km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    15°C

    59°F · Range: 12.8–18.1°C

    Air Temperature

    10°C

    50°F

    Wind Speed

    3.78 m/s

    7.3 knots

    Atmospheric Pressure

    1017 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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