Bar Harbor (Maine) in september: average Weather, Temperature and Climate
Weather in Bar Harbor (Maine) in september 2025
The weather in Bar Harbor (Maine) in the month of september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
59°F
Clear/Sunny
43% of time
28%
9%
9%
Weather at 12pm
68°F
Clear/Sunny
49% of time
24%
12%
11%
Weather at 6pm
59°F
Clear/Sunny
46% of time
23%
11%
9%
Weather at 3am
56°F
37%
22%
19%
12%
Evolution of daily average temperature and precipitation in Bar Harbor (Maine) in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Bar Harbor (Maine) in september.
The climate of Bar Harbor (Maine) in september is good
The weather in september in Bar Harbor (Maine) is relatively dry (with 3.8in of rainfall over 4 days). It should be noted a worsening from the previous month since in august there is an average of 3.7in of rainfall over 4 days.
The climate quite good in that area this month. The high seasonal norm is 68°F. The minimum is 58°F. Thus, the mean temperature average in september in Bar Harbor (Maine) is 63°F. Note that these seasonal averages are in contrast with those observed in Bar Harbor (Maine) in september with a maximum record of 85°F in 2010 and a minimum record of 40°F in 2020. You can expect to have about 23 days with temperatures over 65°F, or 77% of the month.
Day length in Bar Harbor (Maine) in september is 12:31. The sun rises at 05:12 and sunset is at 17:43.
With a good climate, this month is recommended to go in that area in United States.
Seasonal average climate and temperature of Bar Harbor (Maine) in september
Check below seasonal norms These datas are set from the weather statements of the past years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 63°F | ||||
| Highest temperature | 68°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 85°F (2010) | ||||
| Lowest record temperature | 40°F (2020) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 23 day(s) (77%) | ||||
| Sea temperature | |||||
| Average sea temperature | 56°F | ||||
| Lowest sea temperature | 53°F | ||||
| Highest sea temperature | 59°F | ||||
| Wind | |||||
| Wind speed | 17km/h | ||||
| Wind temperature | 58°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3.8in | ||||
| Number of days with rainfall | 4 day(s) (14%) | ||||
| Record daily rainfall | 4.7in (2015) | ||||
| Snowfall | 0cm | ||||
| Other climate data | |||||
| Humidity | 84% | ||||
| Visibility | 8.77km | ||||
| Cloud cover | 36% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:12 | ||||
| Time of sunset | 17:43 | ||||
| Length of day | 12:31 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Bar Harbor (Maine) in september 2024:
63°F to 65°F
59°F to 70°F
47°F to 68°F
54°F to 72°F
58°F to 72°F
54°F to 67°F
56°F to 72°F
58°F to 67°F
49°F to 67°F
56°F to 67°F
49°F to 70°F
54°F to 72°F
56°F to 76°F
59°F to 70°F
54°F to 70°F
56°F to 72°F
56°F to 70°F
58°F to 72°F
54°F to 70°F
59°F to 63°F
58°F to 67°F
56°F to 61°F
54°F to 63°F
56°F to 65°F
56°F to 63°F
54°F to 58°F
56°F to 68°F
58°F to 68°F
56°F to 63°F
59°F to 70°F
Map: other cities in the United States (USA) in september
Cities near Bar Harbor (Maine):
| Maine in september | good weather |
| Old Orchard Beach in september | good weather |
| Hampton Beach in september | good weather |
| Provincetown in september | good weather |
| Cape Cod National Seashore in september | good weather |
| Boston in september | good weather |
| Massachusetts in september | perfect weather |
| Vermont in september | good weather |
| Nantucket Island (Massachusetts) in september | good weather |
| Rhode Island in september | perfect weather |
| Albany in september | good weather |
| Connecticut in september | good weather |
Click over cities on the map for information about the weather in september.
Bar Harbor (Maine)
perfect weather
good
tolerable
bad
very bad
Weather data for Bar Harbor (Maine) in september:
Weather data for Bar Harbor (Maine) for september are derived from an average of the weather forecast since 2009 in Bar Harbor (Maine). There is a margin of error and these forecasts are to be considered as general information only. The weather in Bar Harbor (Maine) can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Bar Harbor (Maine).