January in Acadia National Park — the hardest end of the year
Hardest · 1.6/10January averages -3°C (26°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 148 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 1.6/10 here, 12th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 7.1 points higher on the same scale.
February in Acadia National Park — the hardest end of the year
Hardest · 3.2/10February averages -3°C (27°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
Rainfall runs 73 mm, so plan one flexible day in three; you still get about 2 sunny days and 10.2 hours of daylight.
It scores 3.2/10 here, 10th of 12 months, against 8.7/10 in the destination's best month.
Expect low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 5.5 points higher on the same scale.
March in Acadia National Park — the hardest end of the year
Hardest · 3.9/10March averages 1°C (35°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 172 mm this is a genuinely wet month: about 8 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.9/10 here, 8th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 4.8 points higher on the same scale.
April in Acadia National Park — workable with trade-offs
Trade-offs · 6.7/10April averages 6°C (42°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 105 mm this is a genuinely wet month: about 17 sunny days in total, and outdoor plans need an indoor fallback.
It scores 6.7/10 here, 6th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 2 points higher on the same scale.
May in Acadia National Park — the year's strongest window
Best window · 8.7/10May averages 11°C (52°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 68 mm, so plan one flexible day in three; you still get about 28 sunny days and 14.6 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Acadia National Park at 8.7/10 — the reference point every other month on this page is measured against.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
June in Acadia National Park — reliably good (2nd best month)
Good · 8.2/10June averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 108 mm this is a genuinely wet month: about 23 sunny days in total, and outdoor plans need an indoor fallback.
It scores 8.2/10 here, 2nd of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
July in Acadia National Park — reliably good (3rd best month)
Good · 8.2/10July averages 19°C (66°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
At 108 mm this is a genuinely wet month: about 27 sunny days in total, and outdoor plans need an indoor fallback.
It scores 8.2/10 here, 3rd of 12 months, against 8.7/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
August in Acadia National Park — reliably good (4th best month)
Good · 7.7/10August averages 19°C (65°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 130 mm this is a genuinely wet month: about 20 sunny days in total, and outdoor plans need an indoor fallback.
It scores 7.7/10 here, 4th of 12 months, against 8.7/10 in the destination's best month.
Expect peak pricing, and this is one of the busiest months here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
September in Acadia National Park — reliably good (5th best month)
Good · 7.2/10September averages 16°C (61°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 95 mm, so plan one flexible day in three; you still get about 13 sunny days and 12.3 hours of daylight.
It scores 7.2/10 here, 5th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer, footwear you can get muddy.
October in Acadia National Park — workable with trade-offs
Trade-offs · 5.5/10October averages 12°C (53°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 124 mm this is a genuinely wet month: about 4 sunny days in total, and outdoor plans need an indoor fallback.
It scores 5.5/10 here, 7th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 3.2 points higher on the same scale.
November in Acadia National Park — the hardest end of the year
Hardest · 3.8/10November averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 118 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 3.8/10 here, 9th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 4.9 points higher on the same scale.
December in Acadia National Park — the hardest end of the year
Hardest · 2.2/10December averages 0°C (33°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 169 mm this is a genuinely wet month: about 0 sunny days in total, and outdoor plans need an indoor fallback.
It scores 2.2/10 here, 11th of 12 months, against 8.7/10 in the destination's best month.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Acadia National Park — 6.5 points higher on the same scale.
