Southwest Harbor Weather in May
During May, Southwest Harbor experiences moderate daytime temperatures of 16°C (61°F) and cooler nights around 7°C (45°F). Expect quite a bit of rainfall. Around 94 mm (3.7 in) is typical.
Rainfall in Southwest Harbor in May
Typically, about 14 days will experience rainfall, with an average of 94 mm (3.7 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Southwest Harbor in May
May in Southwest Harbor brings typical temperatures with highs around 16°C (61°F) and lows of 7°C (45°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.For Southwest Harbor itself, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 May
Min Temperature
7°C (45°F)
Max Temperature
16°C (61°F)
Chance of Rain
47%
Precipitation
94 mm (3.7 in)
Rainy days
14 days
Best Places in the United States of America in May
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 May →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Southwest Harbor in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Southwest Harbor in May
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.
