Bar Harbor

Maine Weather in September

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

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Bar Harbor Ogunquit Old Orchard Beach Kennebunkport

Planning a getaway to Maine, the United States of America this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Maine in September

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

Temperatures

The average maximum daytime temperatures vary from pleasant in Jackman at 20°C (68°F) to warm in Saco at 23°C (73°F). Nighttime temperatures generally drop to 11°C (52°F) in Saco and 7°C (45°F) in Jackman.

For specific regional insights in Maine, the United States of America, refer to the map provided below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Jackman with an average of 82 mm (3.2 in) to high rainfall in Camden with 106 mm (4.2 in).

Explore Maine by month

Pick a month to see the average temperature, rainfall and sunshine in Maine — and find the best time to visit. (based on Bar Harbor)

January0°C (32°F) February1°C (34°F) March5°C (41°F) April12°C (54°F) May18°C (64°F) June21°C (70°F) This monthJuly25°C (77°F) August24°C (75°F) September21°C (70°F) October15°C (59°F) November9°C (48°F) December4°C (39°F)
Best Time to Visit Maine →

Best Places to Visit in Maine in September

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 September for some of the most popular destinations in Maine, the United States of America?

Temperature range in Maine (September)

Precipitation variation in Maine (September)

Bar Harbor

In September Bar Harbor generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
24°C (75°F)
21°C (70°F)
15°C (59°F)
Min temperature
15°C (59°F)
11°C (52°F)
6°C (43°F)
Monthly rainfall
96 mm (3.8 in)
102 mm (4 in)
166 mm (6.5 in)
Monthly rainy days
10 days
10 days
13 days
Weather conditions
perfect
pleasant
unpleasant
Climate in Bar Harbor →

Ogunquit

In September Ogunquit generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
22°C (72°F)
15°C (59°F)
Min temperature
15°C (59°F)
11°C (52°F)
5°C (41°F)
Monthly sun hours
267 hours
228 hours
187 hours
Monthly rainfall
106 mm (4.2 in)
102 mm (4 in)
125 mm (4.9 in)
Monthly rainy days
9 days
8 days
11 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Ogunquit →

Old Orchard Beach

In September Old Orchard Beach generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
22°C (72°F)
15°C (59°F)
Min temperature
15°C (59°F)
11°C (52°F)
5°C (41°F)
Monthly sun hours
267 hours
228 hours
187 hours
Monthly rainfall
103 mm (4.1 in)
94 mm (3.7 in)
133 mm (5.2 in)
Monthly rainy days
10 days
10 days
11 days
Weather conditions
pleasant
perfect
unpleasant
Climate in Old Orchard Beach →

Kennebunkport

In September Kennebunkport generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
21°C (70°F)
15°C (59°F)
Min temperature
14°C (57°F)
10°C (50°F)
4°C (39°F)
Monthly sun hours
267 hours
228 hours
187 hours
Monthly rainfall
111 mm (4.4 in)
100 mm (3.9 in)
138 mm (5.4 in)
Monthly rainy days
10 days
9 days
13 days
Weather conditions
pleasant
pleasant
unpleasant
Climate in Kennebunkport →

Wells

In September Wells generally has pleasant temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
22°C (72°F)
15°C (59°F)
Min temperature
15°C (59°F)
11°C (52°F)
5°C (41°F)
Monthly sun hours
267 hours
228 hours
187 hours
Monthly rainfall
103 mm (4.1 in)
96 mm (3.8 in)
123 mm (4.8 in)
Monthly rainy days
10 days
9 days
13 days
Weather conditions
pleasant
perfect
unpleasant
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 September

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

City Weather Day temp Night temp Rainfall
Bar Harbor 21°C (70°F) 11°C (52°F) 102 mm (4 in)
Ogunquit 22°C (72°F) 11°C (52°F) 102 mm (4 in)
Old Orchard Beach 22°C (72°F) 11°C (52°F) 94 mm (3.7 in)
Kennebunkport 21°C (70°F) 10°C (50°F) 100 mm (3.9 in)
Wells 22°C (72°F) 11°C (52°F) 96 mm (3.8 in)
Kennebunk 22°C (72°F) 10°C (50°F) 95 mm (3.7 in)

Maine weather in September: frequently asked questions

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

Expect pleasant weather across Maine, the United States of America in September. The popular destination of Bar Harbor averages 21°C (70°F) by day and 11°C (52°F) at night during this month.

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

Daytime temperatures in Bar Harbor peak at roughly 21°C (70°F) in September, dropping to about 11°C (52°F) overnight.

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

Maine, the United States of America sees substantial rainfall in September. Bar Harbor typically averages about 102 mm (4 in), a mix of wet and dry days, but bring an umbrella.

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

In our opinion, September is a good time to visit Maine, the United States of America with overall pleasant weather in Bar Harbor.

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. The weather in January, February, March, April, November and December, on the other hand, tends to be poor.

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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