What is the hottest month at Acadia?

July, with an average high of 79°F and an average low of 60°F at Acadia NP (NOAA 1991–2020 normals). The station averages 3 days a year at or above 90°F.

How cold does Acadia get in winter?

January is the coldest month, averaging a low of 15°F and a high of 33°F at Acadia NP. About 141 nights a year drop to freezing or below.

Does it snow at Acadia?

Acadia NP records almost no snowfall (no snow normals). Higher elevations in the park can differ.

When is the rainy season at Acadia?

November is the wettest month on average (5.9 inches of precipitation at Acadia NP); the station's annual total is 55.5 inches.

How many hours of daylight does Acadia get?

About 15h 31m on June 15 and 8h 52m on December 15 (sunrise 4:48 AM, sunset 8:19 PM in June; 7:02 AM to 3:54 PM in December, America/New York time).

What is the best month to visit Acadia for weather?

By NOAA's normals, average highs sit between 55°F and 85°F in May, June, July, August, September and October. Of those, May is also well below the park's peak crowds. Weather in the park varies with elevation; this is the Acadia NP station.

Weather by month

Acadia weather, month by month

Last verified October 6, 2026NOAA 1991–2020 normalsAmerica/New York time

Average highs, lows, rain, snow and daylight for every month. Measured at the Acadia NP (470 ft, 2.5 mi from Hulls Cove Visitor Center).

While seated on a blanket on a patch of mountaintop granite, a man and woman clasp their arms around — Photo: NPS Photo by Kent Miller

Jul high: 79°F; hottest month
Jan low: 15°F; coldest month
Rain + snowmelt: 55.5in / yr; wettest: Nov
Snowfall: —in / yr; rare
Days ≥ 90°F: 3/ yr
Nights ≤ 32°F: 141/ yr

Acadia NP

Month by month

Normals are 30-year averages (1991–2020). Crowds = each month’s share of the park’s busiest month, from NPS visitor counts. Sunrise and sunset are for the 15th of each month in 2027.

Average high and low, every monthbars run from the low to the high · tan strip = precipitation

Month	High	Low	Rain	Wet days	Sunrise	Sunset	Daylight	Crowds
Jan	33°	15°	4.5″	12	7:06 AM	4:19 PM	9h 13m	2
Feb	35°	18°	3.8″	10	6:33 AM	5:01 PM	10h 28m	2
Mar	42°	25°	4.9″	12	6:46 AM	6:38 PM	11h 53m	4
Apr	53°	35°	5.2″	12	5:49 AM	7:17 PM	13h 27m	13
May	65°	45°	4.5″	14	5:06 AM	7:53 PM	14h 47m	41
Jun	74°	54°	4.3″	12	4:48 AM	8:19 PM	15h 31m	77
Jul	79°	60°	3.3″	11	5:03 AM	8:15 PM	15h 13m	98
Aug	78°	60°	3.5″	9	5:36 AM	7:39 PM	14h 03m	100
Sep	71°	53°	4.2″	11	6:12 AM	6:45 PM	12h 33m	83
Oct	59°	43°	5.9″	12	6:48 AM	5:50 PM	11h 02m	70
Nov	48°	33°	5.9″	11	6:29 AM	4:06 PM	9h 37m	9
Dec	38°	22°	5.7″	14	7:02 AM	3:54 PM	8h 52m	2

Sweet spot: May combines average highs between 55°F and 85°F with crowds under 60% of the peak month. Check what is open in those months — quiet can also mean closed roads.

How to read this

These are NOAA’s official 1991–2020 climate normals for one weather station, not a model of the whole park. The station is the one with complete temperature and precipitation normals nearest to a visitor center. Highs and lows are daily averages for the month; “wet days” are days with at least 0.01 inch of precipitation. Mountain parks can be 10–20 °F cooler at their high points than at the station, and the NPS weather page for Acadia is the place for current conditions and seasonal closures.

Sunrise and sunset are computed with the NOAA solar equations for the park’s coordinates and shown in America/New York time for the 15th of each month of 2027; they are accurate to about a minute.

Sources · 3

1.U.S. Climate Normals 1991–2020 — monthly normals station inventory · National Centers for Environmental Information (NOAA)
2.Acadia National Park — Weather (nps.gov) · National Park Service
3.Acadia National Park — Visitor Use Statistics · National Park Service (IRMA)

FAQ

Acadia weather questions

What is the hottest month at Acadia?: July, with an average high of 79°F and an average low of 60°F at Acadia NP (NOAA 1991–2020 normals). The station averages 3 days a year at or above 90°F.
How cold does Acadia get in winter?: January is the coldest month, averaging a low of 15°F and a high of 33°F at Acadia NP. About 141 nights a year drop to freezing or below.
Does it snow at Acadia?: Acadia NP records almost no snowfall (no snow normals). Higher elevations in the park can differ.
When is the rainy season at Acadia?: November is the wettest month on average (5.9 inches of precipitation at Acadia NP); the station's annual total is 55.5 inches.
How many hours of daylight does Acadia get?: About 15h 31m on June 15 and 8h 52m on December 15 (sunrise 4:48 AM, sunset 8:19 PM in June; 7:02 AM to 3:54 PM in December, America/New York time).
What is the best month to visit Acadia for weather?: By NOAA's normals, average highs sit between 55°F and 85°F in May, June, July, August, September and October. Of those, May is also well below the park's peak crowds. Weather in the park varies with elevation; this is the Acadia NP station.

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