2026 Climate Averages

Weather in Boston in May

The weather is near-perfect with ideal temperatures and minimal rain. Recommended month to visit.

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Climate Overview

May is an excellent time to visit Boston. Boston has a Cool climate with average yearly highs of 19°C, lows of 8°C, and approximately 8 rainy days per month.

Avg High

19°C

Avg Low

8°C

Rainy days

8days

Daylight

14.6h

Is May a good time to visit Boston?

The weather is near-perfect with ideal temperatures and minimal rain.

Daylight

Sunrise

5:25 AM

Sunset

7:58 PM

Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 5°C -3°C 7 Good
February 5°C -3°C 10 Good
March 10°C 0°C 12 Good
April 10°C 2°C 12 Good
May 19°C 8°C 8 Excellent (best)
June 26°C 16°C 9 Excellent (best)
July 29°C 20°C 11 Good
August 29°C 19°C 10 Good
September 24°C 14°C 6 Excellent (best)
October 17°C 8°C 9 Excellent (best)
November 13°C 4°C 9 Good
December 5°C -3°C 9 Good

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for May

Layers, a light jacket, comfortable walking shoes, and an umbrella.

Climate: Cool
Travel Context Brisk but pleasant—ideal for hiking or city walks with a light jacket.

Planning a trip to Boston?

Common Questions

Is May a good time to visit Boston? +

May is typically Excellent for visiting Boston, with average highs of 19°C and around 8 rainy days.

What should I pack for Boston in May? +

With highs of 19°C and lows of 8°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.

Does it rain a lot in Boston in May? +

Boston typically sees around 8 rainy days in May.

How many hours of daylight are there in Boston in May? +

In May, Boston gets approximately 14.6 hours of daylight per day.

Is May peak season in Boston? +

Yes, May is peak season in Boston. Expect higher prices and more crowds, but also the best weather.

What is the best month to visit Boston? +

The best months to visit Boston are May, June, September, October, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/New_York)

Last Updated: January 2026

More Boston Guides

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Things to Do

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Itineraries

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Overview

Complete travel guide for Boston: top things to do, itineraries, and typical costs.

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May

19° /
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