Southwest Harbor Weather in August
August in Southwest Harbor typically sees daytime highs of 23°C (73°F) and nighttime lows of 14°C (57°F). With the least rainfall of the year, it's a reliably dry month. It falls within the summer season.
Rainfall in Southwest Harbor in August
As the driest month, it's a great time for hiking and exploring the area. Past climate data indicates that roughly 11 days will see rain, totalling around 85 mm (3.3 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Southwest Harbor in August
August in Southwest Harbor is generally excellent, with days reaching 23°C (73°F) and nights settling around 14°C (57°F). The summer season is characteristic of August. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Southwest Harbor's climate page.
Southwest Harbor Temperature in August
Min Temperature
14°C (57°F)
Max Temperature
23°C (73°F)
Chance of Rain
36%
Precipitation
85 mm (3.3 in)
Rainy days
11 days
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Southwest Harbor in August
For Southwest Harbor in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Southwest Harbor in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Southwest Harbor's climate page.
See the full Southwest Harbor climate overview or explore weather in the United States of America.
