Southwest Harbor, ME weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Southwest Harbor now
Loading the National Weather Service forecast…
Southwest Harbor weather by the hour
Southwest Harbor weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Southwest Harbor.
This week in Southwest Harbor
Sunrise, sunset and moon in Southwest Harbor
What is the weather usually like in Southwest Harbor?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 81°F average high
- Januarycoldest month · 16°F average low
- 55.5 inprecipitation per year · 1,411 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Southwest Harbor: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ACADIA NP, ME US (USC00170100), adjusted for the elevation of Southwest Harbor.
Southwest Harbor weather month by month
Sunrise and sunset in Southwest Harbor through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:03 AM | 4:21 PM | 9 h 18 min |
| February | 6:30 AM | 5:03 PM | 10 h 33 min |
| March | 6:43 AM | 6:40 PM | 11 h 57 min |
| April | 5:47 AM | 7:18 PM | 13 h 31 min |
| May | 5:04 AM | 7:54 PM | 14 h 50 min |
| June | 4:47 AM | 8:20 PM | 15 h 33 min |
| July | 5:02 AM | 8:16 PM | 15 h 14 min |
| August | 5:35 AM | 7:40 PM | 14 h 4 min |
| September | 6:11 AM | 6:45 PM | 12 h 34 min |
| October | 6:46 AM | 5:50 PM | 11 h 3 min |
| November | 6:27 AM | 4:08 PM | 9 h 40 min |
| December | 7:00 AM | 3:56 PM | 8 h 56 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Southwest Harbor?
Southwest Harbor has a warm-summer humid continental climate. The warmest month is July, with an average high of 81°F (27°C), and the coldest is January, with average lows of 16°F (-9°C).
It gets about 55.5 inches (1,411 mm) of precipitation a year. The wettest month is November and the driest is July.
The best time to visit Southwest Harbor is June to September. At 118 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Southwest Harbor
Weather in towns near Southwest Harbor
Questions about the weather in Southwest Harbor
What is the hottest month in Southwest Harbor?
July, with an average high of 81°F (27°C).
What is the coldest month in Southwest Harbor?
January, with an average low of 16°F (-9°C).
How much does it rain in Southwest Harbor?
About 55.5 inches (1,411 mm) a year; the wettest month is November.
Does it snow in Southwest Harbor?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Southwest Harbor?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Southwest Harbor have?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in Southwest Harbor in November?
Highs average 49°F and lows 34°F, with about 5.9 inches of precipitation.
What time is sunrise in Southwest Harbor?
Around 6:27 AM in mid-November, and sunset around 4:08 PM. Today’s exact times are shown above.
Where does this Southwest Harbor weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Southwest Harbor.
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