Weather on September 15 at Acadia

Acadia National Park

MENortheast500 ft elevation
Avg High69°F
Avg Low50°F
Warmest200371°F
Coldest197548°F

Based on 53 years of data from Bar Harbor, ME

Planning Your Visit

September 15th in Acadia National Park (via Bar Harbor, ME) typically brings mild fall weather, with average highs around 69°F and lows near 50°F. Over 53 years of records, the warmest September 15th was in 2003 (71°F average), while the coldest was 1975 (48°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 38% of September 15th dates historically, with the wettest September 15th recording 4.19" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for September 15th in Acadia? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202576°F54°F----
202478°F53°F----
202369°F52°F----
202265°F46°F----
202167°F58°F----
202063°F44°F----
201974°F53°F----
201877°F56°F----
201772°F60°F----
201668°F46°F----
201583°F56°F----
201461°F40°F----
201366°F49°F----
201272°F61°F0.03"--
201176°F60°F0"--
201067°F51°F0.51"0"
200966°F52°F0.13"0"
200877°F58°F0.53"0"
200762°F56°F1.22"0"
200673°F57°F0"0"
200567°F61°F1.6"0"
200467°F50°F----
200379°F63°F0"0"
200267°F43°F0.33"0"
200165°F41°F0"0"
199975°F56°F0"0"
199775°F56°F0"0"
199661°F53°F3"0"
199572°F44°F0.33"0"
199470°F45°F0"0"
199378°F62°F0"0"
199272°F52°F0"0"
199170°F49°F0"0"
199064°F57°F0.66"0"
198959°F50°F4.19"0"
198863°F42°F0.1"0"
198773°F47°F0"0"
198660°F36°F0"0"
198567°F40°F0"0"
198474°F44°F0.81"0"
198366°F41°F0"0"
198273°F53°F0"0"
198170°F56°F0"0"
198064°F50°F1.12"0"
197968°F49°F0.56"0"
197861°F41°F0.48"0"
197762°F43°F0"0"
197679°F56°F0"0"
197561°F35°F0"0"
197468°F46°F0.03"0"
197363°F52°F0.18"0"
197267°F46°F0.13"0"
197174°F55°F0.03"0"

September 15 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

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