Dedham Weather in August

Dedham in August sees high temperatures, with highs around 28°C (82°F) and overnight lows of 16°C (61°F). Rainfall is fairly high at around 102 mm (4 in) on average, so pack waterproofs just in case.

Rainfall in Dedham in August

Typically around 11 days of rainfall are expected, averaging 102 mm (4 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 Dedham in August

August in Dedham brings high temperatures, with highs of 28°C (82°F) and nights around 16°C (61°F). The summer season is characteristic of August. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 16°C (61°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 Dedham in August

The days are predominantly sunny, with an estimated total of around 280 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Dedham in August

Average wind conditions reach 5 m/s (10 knots) in August. 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 August

With water at 20°C (68°F), conditions are good for swimming and other water activities. You won't need a wetsuit and most people find it very comfortable.

If you prefer enjoying temperate temperatures and rain-free days, May, July and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 Dedham's climate page.

Dedham Temperature in August

Min Temperature 16°C (61°F)  

Max Temperature 28°C (82°F)  

Water Temperature 20°C (68°F) *  

Chance of Rain 36%  

Precipitation 102 mm (4 in)  

Rainy days 11 days  

Humidity 72% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 280 hours *  

Percentage Sunshine 64% *  

* Data from: Boston, the United States of America (17 KM, 11 Miles).

What to Wear in Dedham in August

Warm but pleasant conditions in Dedham in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 20°C (68°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Dedham in August

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

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 Dedham's climate page.

More climate data for Dedham

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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