Spring in Maine is a slow thaw. March and April are cold, wet, and muddy, and many attractions have not opened yet. By late May the trees are leafing out, the weather turns pleasant, and the summer season begins. It is the quietest and cheapest time to visit, with fewer services and less predictable weather. Weather figures below are from the National Weather Service.
Looking at a single month? See Maine in June for weather, black flies and lupines.
What Is the Weather Like in Maine in Spring?
Using the National Weather Service’s 1991-2020 normals for Portland, the average daytime high is about 42°F in March, 54°F in April, and 64°F in May. Average overnight lows are about 26°F, 35°F, and 46°F. Portland averages roughly 13.6 inches of snow in March, 2.8 inches in April, and none in May. Precipitation runs 3.7 to 4.4 inches a month.
Inland and northern Maine stay colder and keep snow longer than the coast, and higher elevations can hold snow into May. Weather swings widely from day to day, so pack layers and a rain jacket.
What Is Mud Season?
As frost leaves the ground, dirt roads and trails turn soft and muddy, usually from late March through April. Some trails, back roads, and park facilities are closed or restricted to protect them. Check with the land manager before you hike or drive on unpaved roads, and stay on trails to avoid damaging them.
What Is Open in Maine in Spring?
Many seasonal attractions, restaurants, boat tours, and inns open for Memorial Day weekend, so early spring can mean limited choices, and some places close completely. Acadia’s Park Loop Road typically opens in mid-April, weather permitting, but some roads and facilities open later. See the Acadia National Park guide. For camping, read our guide to state park camping reservations and browse Maine campgrounds. Call ahead for hours.
Best Things to Do in Maine in Spring
- Chase waterfalls. Snowmelt and rain fill the falls. See our best waterfalls in Maine.
- Look for moose. Spring evenings are a good time along northern roads. See our moose watching guide.
- Visit a sugarhouse. Maine’s maple producers hold an open-house weekend in late March.
- Hike low-elevation and coastal trails once they dry out. See our best hikes in Maine.
- Go fishing. Open-water fishing season begins as lakes thaw. Read our fishing license guide first.
- Plan a puffin trip. Seabird tours begin in late spring or early summer. See Machias Seal Island puffins.
Insects and Other Spring Hazards
Black flies are active in the woods from about mid-May into June, and ticks are active as soon as the snow melts. Bring repellent and check for ticks after time outdoors. Water is very cold in rivers and lakes, and current can be strong during runoff.
Events in Spring
Spring brings maple weekends, early-season festivals, and Memorial Day events. Dates change each year, so check our Maine events calendar for current listings. Planning another season? See Maine in Summer and Maine in Winter, or compare them all in our best time to visit Maine guide.
Maine in Spring FAQ
Is spring a good time to visit Maine?
It is a good time for low prices and quiet trails, especially in late May. It is less good for beaches, boat tours, or a full range of open attractions.
Does it snow in Maine in spring?
Yes, in March and sometimes April. Portland averages about 13.6 inches in March and 2.8 inches in April, and inland and northern Maine see more.
When does mud season end in Maine?
Usually by May, once the ground dries out. Timing varies by region and by year.
What should I pack for Maine in spring?
Warm layers, a waterproof jacket, waterproof boots, a hat and gloves for March and April, and insect repellent for May.
Weather figures are National Weather Service 1991-2020 monthly normals for Portland. Opening dates and event schedules change each year, so confirm details with the organizer or park before you go.