New Haven Weather in May

New Haven in May averages 21°C (70°F) during the day and 11°C (52°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in New Haven in May

Historically, the month has about 14 days of rain, averaging 105 mm (4.1 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in New Haven in May

Daytime highs in New Haven in May reach 21°C (70°F), with nights around 11°C (52°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 11°C (52°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 New Haven in May

There are approximately 258 hours of sunshine this month, resulting in mostly clear days.

Should you favor a climate that's both dry and comfortably warm, July and September typically offer the most agreeable 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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• January
• February
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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 New Haven's climate page.

New Haven Temperature in May

Min Temperature 11°C (52°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 47%  

Precipitation 105 mm (4.1 in)  

Rainy days 14 days  

Humidity 63% *  

Sunshine 258 hours *  

Percentage Sunshine 57% *  

* Data from: Hartford, the United States of America (54 KM, 33 Miles).

What to Wear in New Haven in May

Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in New Haven in May

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

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

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 New Haven's climate page.

More climate data for New Haven

Temperature Rainfall Sunshine Humidity

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