Bar Harbor, ME Weather
Bar Harbor hourly forecast: next 24 hours
Today's high of 90°F (32°C) is about 17°F (9°C) above the typical August high of 73°F (23°C).
Current conditions in detail
Bar Harbor weather tomorrow (Friday, August 7)
Tomorrow in Bar Harbor looks sunny, with a high of 82° and an overnight low of 67°. There is a 43% chance of rain - plan accordingly. Winds top out near 9 mph, and the UV index reaches 7 (high).
Bar Harbor 14-day forecast
About the weather in Bar Harbor
Located in Maine, United States, Bar Harbor experiences a humid continental climate with warm summers and cold, often snowy winters. Afternoon temperatures peak near 74°F (23°C) in July and dip to about 33°F (0°C) in January, with around 50.2 inches (1274 mm) of precipitation falling across the year.
Bar Harbor weather: quick facts
- Hottest month: July - highs near 74°F (23°C)
- Coldest month: January - highs near 33°F (0°C)
- Record high: 94°F (35°C) · Record low: -17°F (-27°C) (2015–2024)
- Wettest month: December (12 rainy days) · Sunniest: July (10.8 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 24 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 74°F (23°C) and overnight lows stay near 62°F (16°C). The coolest month is January, with typical highs of 33°F (0°C) and lows around 19°F (-7°C). Based on 2015–2024 weather data, temperatures have reached as high as 94°F (35°C) and dropped as low as -17°F (-27°C).
Rain, sun and snow
December is usually the wettest month. It brings about 5.3 inches (136 mm) of rain over 12 days, while May is the driest. July brings the most sunshine, averaging 10.8 hours of sun a day. Snow falls on about 24 days in a typical year, mostly from November through April.
Season by season
Spring (March through May)
Spring in Bar Harbor is chilly, with daytime highs averaging 49°F (9°C) and nights around 36°F (2°C); expect showers on roughly 33 days across the season, plus around 7 snowy days.
Summer (June through August)
Summer in Bar Harbor brings comfortable warmth, with daytime highs averaging 71°F (22°C) and nights around 60°F (15°C); expect showers on roughly 30 days across the season.
Fall (September through November)
Fall in Bar Harbor stays on the cool side of mild, with daytime highs averaging 57°F (14°C) and nights around 47°F (8°C); expect showers on roughly 29 days across the season.
Winter (December through February)
Winter in Bar Harbor is frigid, with daytime highs averaging 35°F (1°C) and nights around 22°F (-6°C); expect showers on roughly 34 days across the season, plus around 17 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Average temperatures in Bar Harbor by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 33° | 19° | 11 | 4.8 in | 5.7 h/day | 73% |
| February | 33° | 19° | 11 | 3.8 in | 6.6 h/day | 72% |
| March | 39° | 26° | 11 | 4.3 in | 7.6 h/day | 71% |
| April | 48° | 36° | 12 | 4.4 in | 8.3 h/day | 73% |
| May | 59° | 46° | 10 | 3.2 in | 10.0 h/day | 75% |
| June | 67° | 55° | 10 | 3.8 in | 10.4 h/day | 80% |
| July | 74° | 62° | 10 | 3.4 in | 10.8 h/day | 82% |
| August | 73° | 62° | 9 | 4.1 in | 10.3 h/day | 82% |
| September | 68° | 57° | 8 | 4.2 in | 9.1 h/day | 81% |
| October | 58° | 47° | 10 | 4.7 in | 7.3 h/day | 79% |
| November | 46° | 36° | 10 | 4.2 in | 6.2 h/day | 74% |
| December | 38° | 26° | 12 | 5.3 in | 5.3 h/day | 74% |