Williamstown weather in May (New Jersey, United States of America)

Thinking of visiting Williamstown in May? Check the weather first! Check out our in-depth weather guide for this month.

Temperatures

During May, Williamstown experiences perfect weather, with high temperatures and moderate rainfall. During the daylight hours, temperatures often reach 24°C. After dark they usually decrease to around 12°C.

Precipitation

Williamstown in May usually receives moderate rainfall, averaging around 85 mm for the month. This month experiences about 11 days of rain according to historical data.

Average sunshine

Expect a lot of sunshine this month, with about 247 hours of sunny weather. The abundant sunlight creates a lively and bright atmosphere.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May typically offers the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Williamstown climate page with graphs.

 

Williamstown, monthly averages in May

Min Temperature 12°C  

Max Temperature 24°C  

Chance of Rain 37%  

Precipitation 85 mm  

Rainy days 11 days  

Humidity 66% *  

Sunshine 247 hours *  

Percentage Sunshine 55% *  

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

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Williamstown, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Williamstown.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.