Lowell Weather in September

September in Lowell typically sees daytime highs of 24°C (75°F) and nighttime lows of 11°C (52°F). With the least rainfall of the year, it's a reliably dry month.

Rainfall in Lowell in September

September is the month with the least rainfall. Whether you're keen on hiking, outdoor festivals, or just enjoying a walk, this month provides a reliably dry backdrop for all your plans. Historically, approximately 10 days this month are expected to have rain, averaging 88 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 Lowell in September

The temperature in Lowell in September is excellent. Daytime highs reach 24°C (75°F), with nights dropping to 11°C (52°F). This kind of day-to-night contrast is typical for this time of year. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Lowell in September

Expect sunny days throughout the month, with an estimated 238 hours of sunshine. This makes it a pleasant time to visit Lowell.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Lowell's climate page.

Lowell Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 33%  

Precipitation 88 mm (3.5 in)  

Rainy days 10 days  

Humidity 69% *  

Sunshine 238 hours *  

Percentage Sunshine 63% *  

* Data from: Boston, the United States of America (37 KM, 23 Miles).

What to Wear in Lowell 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Lowell in September

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Lowell's climate page.

More climate data for Lowell

Temperature Rainfall Sunshine Humidity

See the full Lowell climate overview or explore weather in the United States of America.