Boothbay Harbor
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Boothbay Harbor Weather in September

In Boothbay Harbor, September brings pleasant daytime temperatures around 20°C (68°F), with nights cooling to 11°C (52°F). Expect quite a bit of rainfall this month.

Rainfall in Boothbay Harbor in September

On average, there are about 9 days with rain during this month, averaging 90 mm (3.5 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Boothbay Harbor in September

The temperature in Boothbay Harbor in September is excellent. Daytime highs reach 20°C (68°F), with nights dropping to 11°C (52°F). September is typically considered a summer month. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 11°C (52°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.

Sunshine in Boothbay Harbor in September

There are approximately 228 hours of sunshine this month, resulting in mostly clear days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August and September typically offer the best weather for Boothbay Harbor.

Boothbay Harbor Temperature in September

Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
30%
Precipitation
90 mm (3.5 in)
Rainy days
9 days
Humidity
77% *
Sunshine
228 hours *
Percentage Sunshine
61% *
* Data from: Portland, the United States of America (54 KM, 33 Miles).

Boothbay Harbor Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Boothbay Harbor - and find the best time to visit.

Best Places in the United States of America in September

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 September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Boothbay Harbor in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Boothbay Harbor in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    9/10
  • Walking
    9/10
  • Barbeque
    8/10
  • Camping
    8/10
  • Outdoor sports
    9/10

Boothbay Harbor 3-Day Forecast

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.