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Best time to visit · Maine, United States
On the climate data, the best time to visit Maine is September, scoring up to 87/100 with highs around 72°F (22°C) and 3.5 in (89 mm) of rain in September. May – August are good shoulder-season months. The toughest months are February & March and December, mainly because of cool days.
Highs run from 26°F to 79°F across the year, and the yearly total is about 48.9 in (1241 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 26°F-3°C | 29°F-2°C | 38°F3°C | 52°F11°C | 65°F18°C | 73°F23°C | 79°F26°C | 78°F26°C | 72°F22°C | 58°F14°C | 44°F7°C | 32°F0°C |
| Avg low | 8°F-13°C | 10°F-12°C | 20°F-6°C | 33°F0°C | 45°F7°C | 55°F13°C | 61°F16°C | 59°F15°C | 52°F11°C | 40°F5°C | 29°F-1°C | 17°F-8°C |
| Rain/snow | 2.8 in72 mm | 3.0 in76 mm | 3.2 in81 mm | 4.2 in107 mm | 4.1 in103 mm | 5.3 in134 mm | 4.3 in108 mm | 4.3 in108 mm | 3.5 in89 mm | 5.5 in139 mm | 4.3 in109 mm | 4.5 in115 mm |
| Humidity | 93% | 93% | 86% | 80% | 79% | 81% | 81% | 80% | 79% | 81% | 85% | 91% |
| Cloud | 63% | 62% | 61% | 65% | 67% | 65% | 58% | 54% | 52% | 62% | 64% | 66% |
| Comfort | 45 | 45 | 45 | 60 | 80 | 77 | 74 | 76 | 87 | 67 | 47 | 39 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 132 m (433 ft), close to Maine's own ~37 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 26–32°F (-3–0°C), and nights reach 8°F (-13°C). It's the driest season, with only about 10.4 in (263 mm) of rain or snow, 21% of the year's total. December – February are cold enough for snow. Comfort scores bottom out in February and December; the season averages 43/100.
Temperatures climb through the season, from 38°F highs in March to 65°F by May. About 11.5 in (291 mm) of rain or snow falls across these months, 23% of the year's total. March is cold enough for snow. It holds the toughest stretch on our comfort score (March), averaging 62/100.
Peak warmth: highs of 73–79°F (23–26°C). It's the wettest season, with about 13.8 in (350 mm) of rain, 28% of the year's total. July & August feel humid, with humidity near 81%. June – August score well without being the very best (season average 76/100).
Temperatures slide from 72°F highs in September to 44°F by November. About 13.3 in (337 mm) of rain falls across these months, 27% of the year's total. Nights dip below freezing in November. Comfort peaks here: September ranks with the year's best, and the season averages 67/100.
By comfort score: 4 Great, 3 Good, 4 Fair and 1 Tough. Great months: May & June and August & September. Tap a month for its own guide.
On the climate data, the best time to visit Maine is September, scoring up to 87/100 with highs around 72°F (22°C) and 3.5 in (89 mm) of rain in September. May – August are good shoulder-season months. The toughest months are February & March and December, mainly because of cool days.
October is the wettest month, averaging about 5.5 in (139 mm) of rain. January is the driest, with about 2.8 in (72 mm). The yearly total is around 48.9 in (1241 mm).
January is the coldest, with average lows of 8°F (-13°C) and highs of 26°F (-3°C). The warmest is July, with average highs of 79°F (26°C).
Yes: in July & August humidity averages 81% with warm temperatures, so it feels muggy. Summer highs peak around 79°F (26°C).
On average, yes: lows fall below 32°F (0°C) in November – March, bottoming out around 8°F (-13°C) in January.
Poll the group on September dates, then plan the days, packing and costs together.
