Bar Harbor weather by month & the best time to visit
🇺🇸 United States · seaside town · continental climate
The best time to visit Bar Harbor is July — its sunniest month (Sunshine Score 76/100), with August and September close behind. Bar Harbor averages about 2,079 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 81 mm of rain in July.
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- Sun hours / year
- 2,079
- Sunniest month
- July
- Peak score
- 76/100
- Rain / year
- 1,249 mm
- Snow / year
- ≈2.3 m
- Midday UV at peak
- 6 (high)
- Sea at warmest
- 21°C / 70°F
- Population
- 3k
- Elevation
- 23 m
When is the best time to visit Bar Harbor?
For sunshine, the best time to visit Bar Harbor is July, then August and September. The dullest month is January (0/100, 92 mm of rain). The full month-by-month picture is in the table below.
How sunny is Bar Harbor?
Bar Harbor gets a moderate 2,079 hours of sunshine a year. 76 Sunshine Score points separate July (76) from January (0), so the month you pick matters. It ranks #371 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 1,249 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -1° / 30°F | -8° / 18°F | 92 mm | 1 | 5° / 41°F |
| February | 0 | 0° / 32°F | -8° / 18°F | 86 mm | 2 | 4° / 39°F |
| March | 0 | 3° / 37°F | -4° / 25°F | 95 mm | 3 | 4° / 39°F |
| April | 6 | 9° / 48°F | 1° / 34°F | 103 mm | 4 | 7° / 45°F |
| May | 37 | 14° / 57°F | 6° / 43°F | 96 mm | 5 | 12° / 54°F |
| June | 59 | 18° / 64°F | 11° / 52°F | 112 mm | 6 | 17° / 63°F |
| July | 76 | 22° / 72°F | 14° / 57°F | 81 mm | 6 | 20° / 68°F |
| August | 75 | 22° / 72°F | 15° / 59°F | 85 mm | 6 | 21° / 70°F |
| September | 66 | 19° / 66°F | 12° / 54°F | 100 mm | 5 | 18° / 64°F |
| October | 27 | 13° / 55°F | 7° / 45°F | 139 mm | 3 | 13° / 55°F |
| November | 0 | 8° / 46°F | 2° / 36°F | 125 mm | 1 | 9° / 48°F |
| December | 0 | 2° / 36°F | -4° / 25°F | 135 mm | 1 | 6° / 43°F |
Sea temperature in Bar Harbor by month
The sea off Bar Harbor is warmest in August at around 21°C / 70°F, and coolest in February at 4°C / 39°F. The water sits at a comfortable 21°C or warmer roughly 1 month a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Bar Harbor on the interactive sunshine globe →
Nearby places for sunshine
- Bangor United States · 54 km · best in Jul · 2,079 h sun/yr
- Portland (Maine) United States · 179 km · best in Jul · 2,150 h sun/yr
- Fredericton Canada · 213 km · best in Aug · 2,001 h sun/yr
- Manchester (New Hampshire) United States · 299 km · best in Sep · 2,158 h sun/yr
- Boston United States · 316 km · best in Jul · 2,157 h sun/yr
- Moncton Canada · 342 km · best in Jul · 1,904 h sun/yr
Nearest destinations
- Rockland United States · 73 km · 2,138 h sun/yr · best in Jul
- Saint John Canada · 217 km · 1,943 h sun/yr · best in Aug
- Portsmouth United States · 250 km · 2,149 h sun/yr · best in Jul
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