Weather in Bar Harbor: August
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Average day temperature: | 71.1°F |
| Average night temperature: | 60.9°F | |
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Sea water temperature: | 61.3°F |
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Number of sunny days: | 11 days |
| Day length: | 13.3 - 14.6 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.9 in. | |
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forecast
| Bar Harbor |
temperature
| Bar Harbor |
Air temperature in August, °F
The highest day temperature during August of 2025 was 76°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during August were 68.5°F and 57.2°F.
Sea water temperature in Bar Harbor in August, °F
The average sea water temperature in August of 2025 was 59.7°F. The highest and lowest sea temperatures during the month were 62.6°F and 56.8°F.
Number of sunny, partly cloudy and cloudy days in August is almost equal.
Precipitation total in August, in.
Precipitation total value in Bar Harbor in August is 0.9 in. Other months of the year show relatively similar values.
The average wind speed value in August is 6.4 mph It makes August lest windy month of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 7.1.
Best time for vacation in Bar Harbor
Bar Harbor on a weather map
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