Weather on September 12 at Acadia

Acadia National Park

MENortheast500 ft elevation
Avg High71°F
Avg Low52°F
Warmest202273°F
Coldest198548°F

Based on 54 years of data from Bar Harbor, ME

Planning Your Visit

September 12th in Acadia National Park (via Bar Harbor, ME) typically brings pleasant fall weather, with average highs around 71°F and lows near 52°F. Over 54 years of records, the warmest September 12th was in 2022 (73°F average), while the coldest was 1985 (48°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 22% of September 12th dates historically, with the wettest September 12th recording 3.61" of rain. The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.3°F warmer on this date compared to 20-30 years ago.

Planning for September 12th in Acadia? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecipSnow
202571°F50°F----
202478°F54°F----
202364°F61°F----
202283°F64°F----
202172°F60°F----
202068°F48°F----
201961°F50°F----
201873°F60°F----
201779°F56°F----
201673°F48°F----
201573°F55°F----
201465°F48°F----
201378°F63°F----
201273°F54°F0"--
201176°F54°F0"--
201068°F45°F0"0"
200966°F52°F0"0"
200865°F50°F0"0"
200767°F55°F1.88"0"
200667°F46°F0"0"
200584°F58°F0"0"
200473°F55°F0"0"
200371°F48°F0"0"
200265°F46°F----
200181°F51°F0"0"
199978°F53°F0"0"
199869°F49°F0"0"
199765°F53°F0.76"0"
199669°F53°F0"0"
199574°F49°F0"0"
199470°F48°F0.1"0"
199364°F38°F0"0"
199267°F46°F0"0"
199165°F41°F0"0"
199072°F52°F0.18"0"
198988°F54°F0"0"
198866°F44°F0"0"
198764°F55°F0.03"0"
198670°F46°F0"0"
198561°F36°F0"0"
198476°F51°F0.25"0"
198378°F59°F0"0"
198280°F48°F3.61"0"
198167°F52°F0"0"
198069°F39°F0"0"
197970°F46°F0"0"
197863°F53°F1.04"0"
197770°F55°F0.2"0"
197666°F51°F0"0"
197565°F54°F1.02"0"
197473°F66°F0"0"
197368°F52°F0"0"
197275°F56°F0.05"0"
197166°F54°F1.57"0"

September 12 at Nearby Parks

Holiday Weather at Acadia

Official NPS WebsiteVisit nps.gov/acad for park information, alerts, and reservations

Explore More at Acadia

See historical weather for other dates

Back to Acadia