Waltham weather in May (Massachusetts, United States of America)

How is May weather typically in Waltham? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

The weather in Waltham during May is usually perfect, offering pleasant temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 21°C. But by evening, they drop to around 9°C.

Precipitation

Waltham in May usually receives moderate rainfall, averaging around 90 mm for the month. On average, there are about 14 days with rain during this month.

Average sunshine

There are approximately 301 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

If you favor pleasant temperatures and minimal rainfall, May is one of the better months to visit Waltham. May, August and September typically offer the most agreeable circumstances. On the other hand, January, February, March and December tend to be characterized by conditions that may not be as optimal.

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

 

Waltham, monthly averages in May

Min Temperature 9°C  

Max Temperature 21°C  

Water Temperature 9°C *  

Chance of Rain 46%  

Precipitation 90 mm  

Rainy days 14 days  

Humidity 67% *  

Windspeed 22 km/h *  

Sunshine 301 hours *  

Percentage Sunshine 59% *  

* Data from: Boston, the United States of America (16 KM, 10 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 Waltham, 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. With a water temperature of around 9°C there is no need to bring your swimwear.

What To Do

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

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

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

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.