Monthly climate guide
Bar Harbor weather in June
June in Bar Harbor is typically mild, with average daytime highs around 18°C (65°F) and night-time lows near 11°C (52°F). The month usually brings about 123 mm of rain (wet) and is often cloudy. Daytime highs are 4°C warmer than May and 4°C cooler than July.
What stands out in June
- Just 320 km apart, but Bar Harbor runs about 5°C cooler than Boston this month.
- It warms up quickly from here: by July highs are about 4°C higher.
- Seasonally, June counts as early summer in Bar Harbor.
Avg high
18°C
65°F
Avg low
11°C
52°F
Rainfall
123 mm
wet
Humidity
85%
relative
Sky
64%
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 June
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is June 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 June
Cite or embed this data
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Bar Harbor weather in June. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/bar-harbor/june
<a href="https://weathercompare.eu/weather/usa/bar-harbor/june">Bar Harbor weather in June</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 June"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/bar-harbor/june">Bar Harbor weather in June</a> – WeatherCompare</p>
Bar Harbor in June: quick answers
Is June a good time to visit Bar Harbor?
June is one of the wetter months in Bar Harbor, with about 123 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Bar Harbor in June?
Average highs are about 18°C (65°F) and average lows about 11°C (52°F), based on 10 years of daily data.
Does it rain a lot in Bar Harbor in June?
Bar Harbor typically gets around 123 mm of rain in June — wet.
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.