Bar Harbor

Maine Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Maine, the United States of America in May.

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Bar Harbor Ogunquit Old Orchard Beach Kennebunkport

Thinking about venturing to Maine, the United States of America this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Maine in May

Maine, the United States of America is a region in the United States of America. May in Maine generally has temperatures that range from mild to pleasant, with precipitation levels ranging from moderate to high.

Temperatures

During the day the temperature is mild in Northeast Harbor at 16°C (61°F) and pleasant in Sanford at 20°C (68°F). As night falls, temperatures generally drop to 8°C (46°F) in Sanford and 7°C (45°F) in Northeast Harbor.

To learn more about the conditions in specific areas of Maine, the United States of America, check out the map below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Waterville with an average of 84 mm (3.3 in) to high rainfall in Ogunquit with 115 mm (4.5 in).

Explore Maine by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Maine in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Maine.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Maine

What is the weather like in May for some of the most popular destinations in Maine, the United States of America?

Temperature range in Maine (May)

Precipitation variation in Maine (May)

Bar Harbor

In May Bar Harbor generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
12°C (54°F)
18°C (64°F)
21°C (70°F)
Min temperature
2°C (36°F)
8°C (46°F)
12°C (54°F)
Monthly rainfall
120 mm (4.7 in)
104 mm (4.1 in)
146 mm (5.7 in)
Monthly rainy days
12 days
12 days
13 days
Weather conditions
poor
tolerable
pleasant
Climate in Bar Harbor →

Ogunquit

In May Ogunquit generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 7°C (45°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
19°C (66°F)
22°C (72°F)
Min temperature
1°C (34°F)
7°C (45°F)
12°C (54°F)
Monthly sun hours
213 hours
244 hours
258 hours
Monthly rainfall
113 mm (4.4 in)
115 mm (4.5 in)
138 mm (5.4 in)
Monthly rainy days
11 days
12 days
14 days
Weather conditions
poor
tolerable
pleasant
Climate in Ogunquit →

Old Orchard Beach

In May Old Orchard Beach generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« April
May
June »
April
May
June
Max temperature
12°C (54°F)
18°C (64°F)
22°C (72°F)
Min temperature
2°C (36°F)
8°C (46°F)
13°C (55°F)
Monthly sun hours
213 hours
244 hours
258 hours
Monthly rainfall
109 mm (4.3 in)
99 mm (3.9 in)
138 mm (5.4 in)
Monthly rainy days
11 days
13 days
14 days
Weather conditions
poor
pleasant
pleasant
Climate in Old Orchard Beach →

Kennebunkport

In May Kennebunkport generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 7°C (45°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

« April
May
June »
April
May
June
Max temperature
12°C (54°F)
17°C (63°F)
21°C (70°F)
Min temperature
1°C (34°F)
7°C (45°F)
12°C (54°F)
Monthly sun hours
213 hours
244 hours
258 hours
Monthly rainfall
108 mm (4.3 in)
108 mm (4.3 in)
145 mm (5.7 in)
Monthly rainy days
12 days
13 days
15 days
Weather conditions
poor
unpleasant
pleasant
Climate in Kennebunkport →

Wells

In May Wells generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 7°C (45°F) and high monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
18°C (64°F)
22°C (72°F)
Min temperature
1°C (34°F)
7°C (45°F)
12°C (54°F)
Monthly sun hours
213 hours
244 hours
258 hours
Monthly rainfall
105 mm (4.1 in)
107 mm (4.2 in)
133 mm (5.2 in)
Monthly rainy days
12 days
14 days
15 days
Weather conditions
poor
tolerable
pleasant
Climate in Wells →

Is your destination not in the list? Have a look at all destinations in Maine, in the United States of America.

Popular cities in May

Day & night temperatures, rainfall and average weather in Maine in May.

City Weather Day temp Night temp Rainfall
Bar Harbor 18°C (64°F) 8°C (46°F) 104 mm (4.1 in)
Ogunquit 19°C (66°F) 7°C (45°F) 115 mm (4.5 in)
Old Orchard Beach 18°C (64°F) 8°C (46°F) 99 mm (3.9 in)
Kennebunkport 17°C (63°F) 7°C (45°F) 108 mm (4.3 in)
Wells 18°C (64°F) 7°C (45°F) 107 mm (4.2 in)
Kennebunk 18°C (64°F) 8°C (46°F) 103 mm (4.1 in)

Maine weather in May: frequently asked questions

What is the weather like in Maine, the United States of America in May?

May in Maine, the United States of America brings tolerable weather. In Bar Harbor, daytime temperatures are typically around 18°C (64°F) and nighttime lows hover near 8°C (46°F).

What is the average temperature in Maine, the United States of America in May?

Average temperatures in Maine, the United States of America during May range from a nighttime low near 8°C (46°F) to a daytime high around 18°C (64°F) in Bar Harbor.

Does Maine, the United States of America get a lot of rain in May?

Maine, the United States of America sees substantial rainfall in May. Bar Harbor typically averages about 104 mm (4.1 in), a mix of wet and dry days, but bring an umbrella.

Is May a Good Time to Visit Maine, the United States of America?

Given the typically tolerable weather conditions in Bar Harbor, May might be a good time to visit Maine, the United States of America.

On average, the best time to visit Maine, the United States of America is in July and August with generally perfect weather in Bar Harbor. On the other hand, the months of January, February, March, April, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Maine.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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