Diving in Maine

Explore diving in Maine

The influence of the Atlantic Ocean means that coastal areas in Maine have some fantastic dive sites to enjoy.

Saco Bay Biddeford Pool is a popular shore entry dive site with the locals. This shallow site allows lucky divers to catch a glimpse of harbour seals, with many crabs and lobsters hiding at the bottom of rocks.

Portland Head Lighthouse is a popular spot for local divers. Crabs and starfish are often clinging to the rocks in the shallows. Lobsters also populate this protected cove defined by sandy bottoms and ledges. Topside, don’t forget to visit this historic, still-operating lighthouse. First lit in 1791, it’s one of the oldest American lighthouse structures.

When to dive in Maine

The prime season for scuba diving in Maine runs from June to September, when water temperatures reach 10–18°C and visibility is at its best. Summer offers calmer seas and longer daylight hours, ideal for exploring reefs and wrecks. Spring and autumn can deliver exceptional clarity but require drysuits and experience. Seasonal planning is essential for safe and rewarding cold-water diving in Maine, particularly along exposed coastal sites.

Book your diving in Maine

More Information

Reaching Maine dive sites typically begins via Portland International Jetport or Bangor International Airport. From there, rental cars provide access to key diving areas such as Casco Bay, Boothbay Harbor, and Acadia National Park. Local dive shops offer guided boat dives, shore diving support, equipment rental, and safety briefings. With professional operators and easy coastal access, diving in Maine, USA combines adventure, history, and some of the most pristine cold-water environments in North America.

Time Zone

UTC-05:00

Phone

Currency

USD

Voltage

120 V

Plug

A, B

1st Stage

INT / Yoke / K

International airports

Portland Intl Jetport (PWM)

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