Average temperature in Southwest Harbor (ME)
The mean minimum and maximum temperatures over the year in Southwest Harbor (Maine), the United States of America.
- The months of July, August and September have nice average temperatures.
- On average, the warmest month is July with 23°C.
- On average, the coolest month is January with -0°C.
- The average annual maximum temperature is 12°C.
- The average annual minimum temperature is 4°C.
Weather Forecasts for Southwest Harbor (ME)
clear and no rain
almost clear and no rain
broken clouds and no rain