Portsmouth weather in May (New Hampshire, United States of America)

Will it be warm or cold in Portsmouth this May? Discover if this is the best time for your journey with our detailed monthly weather breakdown.

Temperatures

The typical weather for May in Portsmouth includes pleasant temperatures and high rainfall. Daytime temperatures hover around 19°C, while nights can cool down to about 8°C.

Precipitation

Portsmouth in May usually receives high rainfall, averaging around 116 mm for the month. On average, there are about 12 days with rain during this month.

Average sunshine

With around 258 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. While January, February, March, April, November and December tend to showcase less optimal conditions.

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

 

Portsmouth, monthly averages in May

Min Temperature 8°C  

Max Temperature 19°C  

Chance of Rain 41%  

Precipitation 116 mm  

Rainy days 12 days  

Humidity 65% *  

Sunshine 258 hours *  

Percentage Sunshine *  

* Data from: Concord, the United States of America (64 KM, 40 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 Portsmouth, 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.

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

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

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.