Summer in Maine: Explore the Great Outdoors

No stretch of the calendar in Maine is more popular from a tourism standpoint than summer, which probably isn’t exactly breaking news. After all, this is summer-vacation time, and the gloriously long days, warm weather, and easy travel access open up a spectacular, full-bore spectrum of outdoor recreation and sightseeing—from the sandy swash of the Southern Maine coast to the vast sylvan spaces of the North Maine Woods.

The great thing about taking advantage of this hard-earned season up in the northlands of New England is that you can do so at whatever “octane” level you wish. Sure, this is the premier window for bashing out mountain climbs, gnarly off-roading, and hardcore sea-kayaking. But, on the flipside, it’s also very much the premier season to laze away the day on a plush beach, dedicate the afternoon to that hammock outside the cabin, or once again realize, for the hundredth time, that fly-fishing is as much about the setting and the vibes and the practice as actually landing anything.

Maine’s Summer Climate & Weather

All things considered, Maine lays claim to a pretty darn ideal summer climate. While much of the country endures torrid heatwaves and/or oppressive humidity, Vacationland tends to skate by with conditions that are, more often than not, downright clement. Roughly speaking, average daily high temperatures in summer range from the 70s to the 80s (Fahrenheit), with lows dropping pleasantly into the 50s or low 60s. Under the strong influence of the Gulf of Maine, the coastal belt of the state enjoys milder summer weather as compared to the interior, where temperatures occasionally climb north of 90 degrees. No surprise—the coast, commonly subject to daily sea breezes that provide natural air-conditioning, serves as a much-loved summer getaway not only for out-of-state tourists but also for Mainers themselves.

Maine’s precipitation is pretty evenly strung out across the year, so don’t be surprised if your summer stay overlaps with some rainfall. But you’re likely to be soaking up plenty of fair-weather conditions as well. The state experiences a notably low rate of thunderstorms compared to much of the U.S., but summer’s the main season for them, with peak occurrence in early to mid-July for much of the state and the latter half of that month in the far north.

Other Seasonal Considerations on a Summertime Getaway to Maine

As in most of North America, summer in Maine also means peak “bug season.” Blackflies are best known as an early-summer scourge, typically peaking in May and June, but they’re increasingly seen out and about (and hungry) later into the summer. Mosquitoes are usually worst in early to mid-summer, though the saltmarsh varieties may be active into the back end of the season. Deerflies and horseflies enter the picture, too, mainly as a mid- to late-summer menace.

Peak season for bugs, peak season for tourism: Many destinations in Maine are, unsurprisingly, as crowded as they get this time of year, given the favorable weather and school holidays. So it’s good to plan well in advance if you’re looking to lock down that lakeside campsite or visit such high-profile destinations as Acadia National Park or Katahdin. The good news is that Maine is, by eastern U.S. standards, enormous, and it harbors many lightly trafficked, hidden-gem-style areas that are just as alluring as the widely known go-to spots. This is a state rife for exploration.

Maine Outdoor Adventures & Sightseeing in the Summertime

Hiking & Camping

Summer is the top season for hitting the trails and the campgrounds in Maine, and needless to say the state has no shortage of either. Indeed, there are so many outstanding locations for hiking and camping here—Baxter State Park (home to mighty Katahdin) to Mount Agamenticus, Mount Desert Island to Aroostook State Park—that it’s hard to know where to start—which is very much where Travel Maine comes to the rescue! You can use this hiking overview to get your bearings, explore our exhaustive database of trails, and browse all of our hiking-related material here.

And Maine camping is absolutely top-tier across the spectrum: from kicking back in a well-developed, amenity-packed frontcountry campground or RV park to tenting out in the deep wilds under a jaw-dropping celestial canopy.

Cycling

Summer presents on a platter the complete range of pedal-powered possibilities in Maine for the cycling enthusiast, from long-distance road-biking tours to adrenaline-pumping mountain tracks and lazy sunset beachfront meanders. The sky’s the limit: Bike your way through bustling and bike-friendly urban centers such as Portland or Augusta, out on the historic and serene carriage roads of Acadia National Park, and along a smorgasbord of multi-use paths, such as the Down East Sunrise Trail, the Kennebec River Rail Trail, and Maine’s section of the country-spanning Northern Tier route.

Here again, Travel Maine has you covered: Dive into our overview of biking opportunities in Maine, post-haste.

Summer Angling

Whether you’re on the prowl for saltwater prizes such as mackerel, bluefish, and the legendary “stripers” along the coast or chasing bass and perch on inland waterbodies, summertime fishing in Maine is topnotch stuff. Some hotspots for striped bass in summer include the inshore waters between Cape Small and Cape Newagen as well as tidal reaches of rivers such as the Kennebunk, the Androscoggin, the Kennebec, the Saco, and the Ogunquit. Outstanding freshwater fishing, meanwhile, can be had all throughout this huge, lake-, pond-, and river-strung state: from Moosehead Lake to Madawaska Lake, from Togue Pond to Little Ossipee Pond, and from the Saint John River to Sebago Lake.

(Keep in mind that, if you’re going after coldwater species such as trout or landlocked salmon in summer, be aware that they’re easily subjected to excessive thermal stress this time of year and need to be handled with proper etiquette.)

Paddling & Other Boating

We’ll venture to say not many places in the world offer the water-lover quite as much as Maine does. After all, we’re talking about a mighty well-watered state with thousands of lakes and ponds, a vast network of rivers and streams, and one of the most extensive coastlines—epically convoluted and island-pocked—in the country (we’re talking several thousands of miles of seashore).

That basic hydrologic variety shakes out to quite the range of on-the-water recreational opportunities, and summer’s the premier season for enjoying them. Paddlers here will find that they’ve gone and died to heaven, basically. From the Mussel (Muscle) Ridge Islands near Owls Head to the beautiful brine off Acadia National Park’s Mount Desert Island waterfront, sea kayakers have just about limitless coves, bays, and little archipelagos to explore—with the 375-mile Maine Island Trail a natural line of adventure to follow. And when it comes to inland waterways, paddling can range from serene SUP sunsets on a Northwoods lake to bucking-bronco rafting rides down such whitewater flows as the Kennebec, the Dead, the Penobscot, and the Rapid rivers. The Northern Forest Canoe Trail and Allagash Wilderness Waterway provide some of the finest backcountry paddling in the nation.

Of course, Maine’s also a primo place for boating of the non-paddle-or-oar-powered variety as well. What a better way to mark a summer’s afternoon than on a sailboat or yacht shadowing the rockbound coast?

Bear in mind that water heats up (and cools down) more slowly than land, so there’s a summer lag in the temperature department: Well into the season, rivers, lakes, ponds, bays, and inlets can remain dangerously chilly even when the air feels comfortably warm or altogether hot. All the more reason to remain cautious and clear-headed whenever you’re pursuing water-based recreation.

Wildlife-Viewing

The great diversity of habitats in Maine—saltmarsh to spruce-fir forest, blueberry barren to conifer bog, maple-beech woods to piney dunes, etc.—and the state’s extensive network of conserved lands make it an excellent place to look for wild critters. And the verdancy of summer—nesting and young-rearing going down, a bounty of wild eats at hand—certainly sets the stage for a lot of wildlife action.

Maine’s one of the best places in the country for birdwatching, given the huge variety of avifauna and no shortage of rarities. Nearly 300 bird species have been recorded in the state, and dozens reach either the northernmost or southernmost limits of their breeding range here. That includes some much-sought-after seabirds, including the Atlantic puffin—which has its only U.S. breeding territory in Maine, including Eastern Egg Rock Island, Maticus Rock, and Machias Seal Island—and the razorbill, notable as the closest living relative of the extinct, penguin-like great auk that also once ranged these waters before being killed off in the 1800s. (If Rockland’s on your Maine summer itinerary, by the way, spare some time for the excellent Project Puffin Visitor Center, which, among other attractions, gives you the chance to spyball in real-time, via remote cameras, on the puffin rookery at Seal Island National Wildlife Refuge.)

A plethora of songbirds summer in Maine: everything from scarlet tanagers, common yellowthroats, and sharp-tailed sparrows to white-winged crossbills, blackpoll warblers, and Swainson’s thrushes. Hikers in conifer forests may luck out with a glimpse of the fierce-eyed, ghostlike American goshawk, among our most impressive birds of prey. Paddlers on inland lakes, meanwhile, are likely to spy common loons, which rivals the moose as a Maine animalian icon and certainly, with its plaintive call, supplies one of the linchpin elements of the state’s wild soundtrack.

It’s worth noting that quite a few kinds of birds kick off their southbound journeys well before fall: From midsummer onward, for example, you can see a variety of migrating shorebirds staging and wayfaring along the Maine seacoast.

Summer’s also the heart of whalewatching season in Maine. The Gulf of Maine ranks among the most important seasonal feeding grounds for baleen whales along the Atlantic seaboard: Productive spring-to-fall concentrations of zooplankton and forage fishes draw notable numbers of rorquals such as sei, finback, and humpback whales. Indeed, the Gulf is the southwesternmost major feeding hangout for humpbacks—those long-flippered acrobats of the leviathan lineup—in the North Atlantic. On whale-watching cruises out of Maine seaports such as Bar Harbor, Portland, and Lubec, you’ve got at least a shot at seeing not only those species but also minke whales, sperm whales, pilot whales—maybe even the well-known, doing-his-own-thing Gulf of Maine orca (killer whale) nicknamed “Old Thom.” Dolphins, harbor porpoises, and pinnipeds—especially gray (aka “horsehead”) seals and harbor seals—are other possible sightings.

And there’s so much more in the wildlife department to appreciate this time of year. Timing a walk, woodsy drive, or vantage-point visit for the early morning or late evening definitely heightens your odds of spotting terrestrial mammals. Summer-red whitetail deer are a dime a dozen: bucks with velvety antlers and does on the move with gangly spotted fawns (often pairs or even triplets). Moose, it probably goes without saying, abound in Maine, and summer’s a great time to spy them foraging along the margins of lakes and ponds; they’re really borderline semi-aquatic. (Give these big beasts plenty of space! Not least cows with calves…) Black bears are also abundant in most parts of the state, although more rarely seen than moose; that said, you might luck out with the sight of a gaggle of cubs learning the ropes of ursine life from mama.

Quiet roads in rural and wild parts of the state are often your best bet for glimpsing not only bears but also other of Maine’s shyer carnivores, commonly more skittish around a person on foot as compared to a vehicle. These include wolfish eastern coyotes, red and gray foxes, bobcats, Canada lynxes (if you do see one, consider buying a lottery ticket), and a pair of feisty tree-climbing mustelids: the burly fisher and the daintier, fox-faced American marten. More common (and more galumphing) backroad-crossers include raccoons, opossums, and porcupines, all of which may also be eyeballed up in tree canopies. Lakes, ponds, and wetlands may yield looks at river otters or mink, not to mention beavers and muskrats. At dusk, keep your eyes on the skies to enjoy the quintessential summer sight of flitting silhouetted bats (doing their part, mind you, to keep bugs in check)—not to mention, to go back to birds for a second, such nocturnal wraiths as barn owls and great horned owls, commencing the night’s hunting.

While Maine’s many thousands of miles of roadways—especially, again, those in the hinterlands—serve up rich wildlife-watching potential, they’re also, unfortunately, incredibly lethal to wild animals. Please drive carefully on your summer travels in Vacationland, maintaining a safe speed at all times and keeping a close bead on the road shoulder so that you’re staying aware of critters that may be attempting to cross. Moose- and deer-vehicle collisions are all too common in Maine, but everything from owls to bears is at risk. While wildlife, of course, may be on roadways any time of day, the crepuscular hours (dawn and dusk) as well as the overnight period demand extra vigilance.

Lighthouse-Touring

Are you a fan of lighthouses? (In point of fact: Is anybody not a fan of lighthouses?) Well, on that count, it’s hard to beat Maine, which lays claim to some 65 of them along one of the most picturesque seacoasts in North America. No manmade structure pulls a coastal tableau together like a light station, and summer’s an ideal season to admire as many of Vacationland’s as you can.

We’ve got several articles here at Travel Maine dedicated to lighthouses—Exhibit A and Exhibit B, for instance—which can serve as useful guides for planning your summer seaside sightseeing. And, actually, it’s not only the seaside where you’ll find light towers: there’s one landlocked lighthouse in Maine, the Ladies Delight Light, built in 1908 along the shores of Cabboseecontee Lake.

A few other of the (many) notable lighthouses in the Pine Tree State include the much-photographed Bass Harbor Head Light in Acadia National Park; the Portland Head Light on Cape Elizabeth (the oldest lighthouse in Maine, first lit back in 1791); the charming little Nubble (Cape Neddick) Light on Nubble Island just off the York oceanfront (and the Boon Island Light farther off that shore but visible from York Beach: at 137 feet the tallest light tower in the state); and the Lubec Channel Light, set a stone’s throw from the U.S.-Canada border.

While Maine’s lighthouses are generally easy to view (from shore or out on the water), most are off-limits to the public. But late summer sees a goodly number of them welcome visitors as part of Maine Open Lighthouse Day, held in early or mid-September each year. And a few light stations double as museums, including the Portland Head Light and the 1832-built Marshall Point Lighthouse (in Port Clyde).

Speaking of museums, anyone with a fondness for maritime history will most certainly want to hit up Rockland’s Maine Lighthouse Museum, which boasts the most extensive collection of light-station and U.S. Coast Guard artifacts in the country.

Swimming

A primal dose of summertime pleasure in Maine? Why, taking a dip, of course. We already established how amply watered the Pine Tree State is, and that means a whole lot of swimming opportunities are on the table. We’re talking sandy ocean beaches, sandy lakeshore beaches, and off-the-beaten-track swimming holes and plunge pools along lovely cascading rivers. Dive (if you will) into the swimming archives here at Travel Maine, and remember that safety’s the numero-uno priority when it comes to soaking and splashing in Vacationland.

Other Summer Activities in Maine

There are plenty of other ways to drink up the sheer blissfulness of summer in Maine. Try your hand at North Atlantic surfing, saddle up for horseback riding on the state’s prodigious network of equestrian-only and shared-use trails, rope up for climbing cliffs and crags from the coast to the Longfellow Mountains, or rev up the old four-wheeler on enough ORV tracks and backroads to just about satisfy a lifetime of summer adventuring. Just to throw a few more logs on the fire of your summer trip-planning inspiration…

Enjoying Summer in Maine With Your Pooch

Most of the above activities can be happily pursued with your canine companion by your side. Dog-friendly fun comes in ample supply during the irresistible Maine summer, whether you’re cruising together on a paddleboard or hitting one of the many trails open to four-legged buddies. For more info, check out our comprehensive primer by Ethan Ward on hiking with dogs in Maine as well as Jennifer Hardy’s Travel Maine breakdown of Acadia National Park’s rather awesome BARK Rangers program.

“Summermaxxing” in Maine

It’s really, really hard to go wrong with a Maine summertime. Taking a catamaran cruise, huffing your way up an obscure little wilderness summit, casting for largemouths or northern pike in a water-lily cove, cycling past lighthouses and headlands, glassing for birds in a wind-rustled red-maple swamp: There are myriad ways to do justice to the season—by marking it out and about in the fresh air.