South Wellfleet (MA) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit South Wellfleet.

Climate overview of South Wellfleet

South Wellfleet, Massachusetts, United States of America, sees big temperature differences between seasons, with July peaking at 27°C (81°F) and February dropping to 4°C (39°F).

With around 1196 mm (47 in) of annual rain/snowfall, South Wellfleet has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has warm summers and cold winters. The wettest month is December. The most sunshine falls in July, with an average of 10.0 hours of daily sunshine.

South Wellfleet Weather by Month

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

Monthly Temperature in South Wellfleet

Visitors to South Wellfleet can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In February, the coolest month of the year, temperatures drop to a chilly 4°C (39°F).

At night, temperatures range from around 19°C (66°F) in July to -4°C (25°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in South Wellfleet

South Wellfleet is known for its substantial rain/snowfall, with annual precipitation reaching 1196 mm (47 in). South Wellfleet experiences moderate seasonal variation in rainfall, with monthly averages ranging from 131 mm (5.2 in) in December, the wettest month, and 72 mm (2.8 in) in August, the driest month. For more details, please visit our South Wellfleet Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in South Wellfleet

South Wellfleet can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.0 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 4.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Nantucket, the United States of America (71 KM, 44 Miles).

Daily hours of sunshine

Data from: Nantucket, the United States of America (71 KM, 44 Miles).

Best Time to Visit South Wellfleet

The most comfortable overall weather for exploring South Wellfleet is usually found in June, July, August and September. Conditions are generally least comfortable in January, February, March, November and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: June, July, August and September
  • Warmest weather: July and August
  • Most sunshine: July
  • Fewest rainy days: July, August and September
  • Seasonal pattern: Warm summers and cold winters
  • Coldest conditions: February, with freezing nights around -4°C (25°F).

Frequently asked questions about the climate in South Wellfleet

What is the best time to visit South Wellfleet?

June, July, August and September typically offer the most optimal weather in South Wellfleet. In contrast, January, February, March, November and December tend to have less optimal conditions. South Wellfleet has warm summers and cold winters.

What temperatures can I expect in South Wellfleet?

Daytime highs range from 4°C (39°F) in February to 27°C (81°F) in July. Nighttime lows range from -4°C (25°F) to 19°C (66°F). Temperatures vary considerably through the year.

How much rain does South Wellfleet get?

Annual rainfall is around 1196 mm (47 in). December is the wettest month with 131 mm (5.2 in), while August is the driest with 72 mm (2.8 in).

How sunny is South Wellfleet?

South Wellfleet receives around 2,605 hours of sunshine per year. July is the sunniest month with 301 hours, while January is the cloudiest with just 147 hours. Overall, South Wellfleet enjoys abundant sunshine.

South Wellfleet 3-Day Forecast

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