Monthly climate guide
Bar Harbor weather in March
March in Bar Harbor is typically cold, with average daytime highs around 3°C (38°F) and night-time lows near -4°C (25°F). The month usually brings about 88 mm of rain (some rain) and is often cloudy. Daytime highs are 3°C warmer than February and 5°C cooler than April.
What stands out in March
- Pack for frost — nights average -4°C in March.
- Bar Harbor is usually about 2°C cooler than Provincetown, 310 km away, in March.
- In Bar Harbor, March is early spring.
- Temperatures are climbing — April is around 5°C warmer.
Avg high
3°C
38°F
Avg low
-4°C
25°F
Rainfall
88 mm
some rain
Humidity
82%
relative
Sky
65%
cloud · often cloudy
Bar Harbor weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | -1°C / 31°F | -8°C / 18°F | 119 mm | 88% | 70% |
| February | 0°C / 31°F | -8°C / 18°F | 96 mm | 88% | 69% |
| March | 3°C / 38°F | -4°C / 25°F | 88 mm | 82% | 65% |
| April | 9°C / 47°F | 1°C / 35°F | 112 mm | 82% | 67% |
| May | 14°C / 57°F | 7°C / 44°F | 108 mm | 85% | 68% |
| June | 18°C / 65°F | 11°C / 52°F | 123 mm | 85% | 64% |
| July | 22°C / 72°F | 15°C / 59°F | 84 mm | 85% | 59% |
| August | 22°C / 72°F | 15°C / 59°F | 99 mm | 84% | 55% |
| September | 19°C / 67°F | 12°C / 53°F | 106 mm | 84% | 55% |
| October | 14°C / 57°F | 7°C / 45°F | 142 mm | 83% | 63% |
| November | 7°C / 45°F | 1°C / 34°F | 122 mm | 84% | 65% |
| December | 2°C / 36°F | -4°C / 24°F | 158 mm | 88% | 73% |
What to pack for March
- A proper insulated winter coat
- A hat, scarf and gloves
- Thermal base layers and warm, grippy boots for icy mornings
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is March a good time to visit Bar Harbor?
Compare the months in the chart above to find your ideal window.
Best time to visit Bar Harbor →Other United States cities in March
Cite or embed this data
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Bar Harbor weather in March. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/bar-harbor/march
<a href="https://weathercompare.eu/weather/usa/bar-harbor/march">Bar Harbor weather in March</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/bar-harbor" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Bar Harbor weather in March"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/bar-harbor/march">Bar Harbor weather in March</a> – WeatherCompare</p>
Bar Harbor in March: quick answers
Is March a good time to visit Bar Harbor?
March is cool in Bar Harbor, with highs around 3°C. Better for museums and city walks than the beach, and usually quieter.
How warm is Bar Harbor in March?
Average highs are about 3°C (38°F) and average lows about -4°C (25°F), based on 10 years of daily data.
Does it rain a lot in Bar Harbor in March?
Bar Harbor typically gets around 88 mm of rain in March — some rain.
Figures are long-term averages for the area around Bar Harbor (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.