Williamstown Weather in August

With daytime temperatures of 30°C (86°F) and nighttime lows of 18°C (64°F), August in Williamstown brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 132 mm (5.2 in) falls on average.

Rainfall in Williamstown in August

You can expect rain on around 9 days based on historical patterns, with 132 mm (5.2 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Williamstown in August

In August, expect high temperatures in Williamstown, with highs of 30°C (86°F) and lows of 18°C (64°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Williamstown in August

Enjoy a sunny month with about 260 hours of sunshine, the clear skies make Williamstown even more beautiful.

For Williamstown itself, May generally stands out with 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 Williamstown's climate page.

Williamstown Temperature in August

Min Temperature 18°C (64°F)  

Max Temperature 30°C (86°F)  

Chance of Rain 30%  

Precipitation 132 mm (5.2 in)  

Rainy days 9 days  

Humidity 70% *  

Sunshine 260 hours *  

Percentage Sunshine 61% *  

* Data from: Philadelphia, the United States of America (32 KM, 20 Miles).

What to Wear in Williamstown in August

Warm but pleasant conditions in Williamstown 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Williamstown 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 Williamstown's climate page.

More climate data for Williamstown

Temperature Rainfall Sunshine Humidity

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