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.