Needham Weather in September

September in Needham brings high temperatures, with daytime highs of 24°C (75°F) and nights around 12°C (54°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.

Rainfall in Needham in September

Expect the least amount of rain this month, providing an excellent opportunity for outdoor activities. Enjoy the clearest skies and driest conditions of the year. You can expect rain on roughly 9 days based on historical data, averaging 82 mm (3.2 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Needham in September

Needham has perfect weather in September, with days reaching 24°C (75°F) and nights cooling to 12°C (54°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Needham in September

Enjoy a sunny month with about 238 hours of sunshine, the clear skies make Needham even more beautiful.

Wind Speed in Needham in September

Average wind conditions reach 5 m/s (10 knots) in September. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in September

At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Needham.

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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 Needham's climate page.

Needham Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 24°C (75°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 30%  

Precipitation 82 mm (3.2 in)  

Rainy days 9 days  

Humidity 69% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 238 hours *  

Percentage Sunshine 63% *  

* Data from: Boston, the United States of America (18 KM, 11 Miles).

What to Wear in Needham in September

For Needham in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Needham 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 Needham's climate page.

More climate data for Needham

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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