South Dennis Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit South Dennis.
Climate overview of South Dennis
South Dennis, United States of America, sees big temperature differences between seasons, with July peaking at 26°C (79°F) and February dropping to 4°C (39°F).
The city receives considerable rain/snowfall, with around 1247 mm (49 in) annually. December is the wettest month. The sunniest month is July, with 10.0 hours of sunshine per day on average.
South Dennis Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in South Dennis — and find the best time to visit.
Monthly Temperature in South Dennis
Visitors to South Dennis can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a chilly 4°C (39°F) in the coolest month, February.
Nights vary from 19°C (66°F) in July to around -5°C (23°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in South Dennis
South Dennis is known for its substantial rain/snowfall, with annual precipitation reaching 1247 mm (49 in). South Dennis offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (139 mm (5.5 in)) and the driest month August (79 mm (3.1 in)) is not too significant. For more details, please visit our South Dennis Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in South Dennis
For those who appreciate different seasons, South Dennis serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.0 hours of sunshine daily, and embrace the darker days in January, offering only 4.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit South Dennis
The weather does bring rainfall during this period, between 79 mm (3.1 in) and 97 mm (3.8 in). Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in South Dennis
What is the best time to visit South Dennis?
June, July, August and September typically offer the most optimal weather in South Dennis. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in South Dennis?
Daytime highs range from 4°C (39°F) in February to 26°C (79°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does South Dennis get?
Annual rainfall is around 1247 mm (49 in). December is the wettest month with 139 mm (5.5 in), while August is the driest with 79 mm (3.1 in).
How sunny is South Dennis?
South Dennis 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 Dennis enjoys abundant sunshine.
South Dennis 3-Day Forecast
South Dennis 3-Day Forecast
South Dennis on the map
South Dennis is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.