Bar Harbor (Acadia) weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Poor
Best time to visit: June – September
What is the weather like in Bar Harbor (Acadia) in March?
In March, Bar Harbor (Acadia) is cold: daytime highs average 3 °C, and nights often drop below freezing (−3 °C). The sea averages 3.5 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Precipitation, often as snow, falls on about 11 days, totalling 102 mm. Snow falls on about 5 days. All in all, March is not an ideal month for a holiday in Bar Harbor (Acadia).
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 25 | 24 | 26 |
| Day | 1° | 3° | 8° |
| Night | −7° | −3° | 3° |
| Sea | 4° | 4° | 5° |
| Sun | 5 h | 6 h | 6 h |
| Rain days | 10 | 11 | 11 |
More details for March
- Daylight
- 11 h 50 min06:47 – 18:38
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 5 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 50 %0 %
- Sunshineweight 20 %47 %
- Few rainy daysweight 30 %50 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in March
- Sunscreen
- Warm jacket
- Hat, scarf & gloves
- Rain jacket or umbrella
Bar Harbor (Acadia) in March: quick answers
Is Bar Harbor (Acadia) hot in March?
No. In March, Bar Harbor (Acadia) is cold: daytime highs average 3 °C and nights drop to about −3 °C.
Can you swim in Bar Harbor (Acadia) in March?
Only if you don't mind cold water: in March the sea averages just 3.5 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Bar Harbor (Acadia) in March?
Rain is frequent, with about 11 rainy days and 102 mm in total.
Bar Harbor (Acadia) month by month
The whole year in Bar Harbor (Acadia)All destinations: USAWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences