ClimateForecastSeptemberOctober >>

Bar Harbor weather in September (Maine, United States of America)

What can you expect from the weather in Bar Harbor during September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Bar Harbor typically experiences pleasant temperatures and high rainfall. Throughout the day, temperatures typically settle at around 21°C. But by evening, they drop to around 11°C.

Bar Harbor in September usually receives high rainfall, averaging around 102 mm for the month. Typically around 10 days of rainfall is expected.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Bar Harbor climate page with graphs.

 

Bar Harbor, monthly averages in September

Min TemperatureMin Temperature 11°C  
Max TemperatureMax Temperature 21°C  
Chance of RainChance of Rain 33%  
PrecipitationPrecipitation 102 mm  
Rainy daysRainy days 10 days  

Where to go in the United States of America in September

Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Bar Harbor in September?

For visitors traveling to Bar Harbor, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Cycling
9/10
Walking
9/10
Camping
6/10
Outdoor sports
9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Bar Harbor.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find 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 climate conditions. Find out where to go with our weather planner.