Yes, you can see the northern lights in Maine, but it takes the right night and the right place. Maine sits far enough south that the aurora usually shows low on the northern horizon, and it appears overhead only during strong geomagnetic storms. Your odds improve a lot the farther north you go and the farther you get from town lights. Aroostook County, the northernmost part of the state, is the best bet.
Best Time to See the Northern Lights in Maine
Sources differ a little on the window. Visit Aroostook says October through April generally offers the best viewing because the nights are longer and darker, and other guides put the darkest skies at December through March. Fall and early spring can also work, though spring tends to be cloudier. Summer nights are short, so the odds are very low.
Whatever the month, you need a clear sky and a dark one. Check the moon phase and aim for nights with little moonlight, and many guides suggest heading out after midnight.
What Kp Level Do You Need?
The Kp index measures geomagnetic activity on a scale of 0 to 9. Forecast sites generally put the point where the lights show low on the northern horizon at about Kp 6 for northern and central Maine, and about Kp 7 for Bar Harbor and the southern coast. Brighter displays overhead need Kp 7 or 8. These are rough guides and sources vary, so treat them as a range, not a promise.
NOAA also rates geomagnetic storms from G1 to G5. Strong storms, G2 and up, are the ones that tend to bring the aurora into Maine skies, so those alerts are the signal to watch.
Best Places to See the Northern Lights in Maine
Aroostook County
Aroostook County borders Canada, has few people and little light pollution, and is widely seen as the best place in Maine for the aurora. Visit Aroostook points to these spots:
- Aroostook National Wildlife Refuge
- Frenchville Dark Sky Observatory in the St. John Valley, which holds regular astronomy events
- Francis Malcolm Science Center in Easton
- Aroostook State Park
- Mars Hill Mountain, for an overlook
- Portage Lake and Long Lake, for open lakeside views north
For lodging and things to do, see our Presque Isle guide, things to do in Presque Isle and the Northern Maine guide.
Katahdin Woods and Waters and Baxter State Park
Katahdin Woods and Waters National Monument is an International Dark Sky Sanctuary, one of only a handful in the world and the only one in the eastern United States. Baxter State Park, next door, is another top pick for winter stargazing and aurora photography. Millinocket is the usual base town. Check road and park access before you go, since it is limited in winter.
Acadia and Downeast Maine
Acadia National Park has wide views to the north, and Cadillac Mountain, Sand Beach and Jordan Pond are popular night-sky spots. Light from Bar Harbor can interfere. The aurora is less likely here than in the north, so think of it as a bonus on a strong storm night. Acadia is better known for the Milky Way, which is best in July and August, and for its Night Sky Festival each September. Cobscook Bay State Park hosts the Maine State Star Party each August.
Western Maine and the Midcoast
The Appalachian Mountain Club’s Maine Woods, in the 100-Mile Wilderness, is an International Dark Sky Park, the first in New England. Farther south, Mount Battie in Camden Hills State Park is a good night-sky spot, though the aurora there needs a strong storm.
Portland and Bangor
These are the hardest places. City light and a more southerly position mean you will likely see at most a faint glow, and only on the strongest storm nights. Drive north or away from town instead.
How to Find Out When the Lights Are Out
- NOAA’s aurora forecast for tonight and tomorrow night, plus its 30-minute and 3-day forecasts
- The University of Alaska Fairbanks aurora forecast
- The Maine Aurora Watch Facebook group, where members share real-time sightings and conditions
- Apps such as My Aurora Forecast
- A light pollution map for Maine, such as Clear Dark Sky’s, to find dark spots near you
Tips for Seeing and Photographing the Aurora
- Find a dark spot with a clear view north, away from house lights, streetlights, headlights and lit campgrounds.
- Check the local cloud forecast, since clouds block even a strong display.
- Dress warmly. Winter nights in the north are well below freezing.
- Be patient. Some nights bring only a faint glow.
- Use a tripod and a long exposure, or your phone’s night mode, to capture faint aurora.
Planning the Trip
From Portland, our tracker lists about 5 hours 30 minutes to the Aroostook County area and about 4 hours to Greenville and Moosehead. Use our Maine driving distances guide to plan the route. Because the lights depend on both the sun and the weather, build the trip around other winter activities so a cloudy night does not ruin it. See Maine in Winter and snowmobiling in Maine for ideas, and Maine in December for what to pack.
Frequently Asked Questions
Can you see the northern lights in Maine?
Yes, especially in northern Maine and during strong geomagnetic storms. It is an event, not a nightly show, so you need a clear, dark night and a good forecast.
What is the best month to see the northern lights in Maine?
Guides generally point to October through April, with the longest nights from December through March. Pick nights with little moonlight and clear skies.
Can you see the northern lights in Portland or Bar Harbor?
Rarely. You would need a strong storm, a dark spot and a clear northern horizon, and in Portland you may see only a faint glow. Bar Harbor needs a stronger storm than northern Maine does.
What is the best place in Maine to see the aurora?
Aroostook County, followed by the Katahdin Woods and Waters and Baxter State Park area. Both have dark skies and open views north.
How do I know when the northern lights will be visible?
Watch NOAA’s aurora forecast and storm alerts, and join the Maine Aurora Watch group for live reports. Plan around Kp 6 or higher for northern Maine.