United States
Boston in May
🌷 SpringPleasant and some showers.
🎒 Pack: light layers
Why May scores 9.2What goes into the score
How it works- Weather comfort50%9.0
- ✓Comfortable temperatures (19°C highs / 10°C lows)
- ✓Comfortable humidity (dew point 9.5°C)
- ✓Mostly dry (~83 mm rain)
- Air quality20%9.5
- ✓Good (within WHO guideline) (PM2.5 ~8 µg/m³)
- Seasonal hazards20%10.0
- ·No notable seasonal hazards
- Safety baseline10%7.5
- ·Increased caution
| May | Sep | |
|---|---|---|
| Score | 9.2 Excellent | 9.2 Excellent |
| Season | 🌷 Spring | 🍂 Autumn |
| High / low | 19° / 10° | 23° / 15° |
| Rain | 83 mm | 90 mm |
| Humidity | dew pt 10° | dew pt 13° |
| PM2.5 | 8 µg/m³ | 11 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Boston weather-station normals. Rainfall: Boston Logan Airport weather-station normals (national met service).
Holidays & crowdsMay 2027
Long weekendThere's at least one long weekend. Domestic travel picks up and popular spots get busier over those days.
- Memorial Day 29–31 May · 3 days off in a row
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Nature calendarBlossoms, leaves & seasons in Boston
- Snowy daysTypical datesSnow likely Dec–Mar (most in Jan: ~7 days)
Average number of days with snowfall at Boston Logan Airport. About 36 cm of snow falls in an average Jan.
Source: Boston Logan Airport weather-station normals (national weather service, via Wikipedia climate table)
Explore BostonEvents, sights, food & souvenirs
Check event dates locallyOne of America's oldest cities, known for its revolutionary history, universities, sports culture and seafood.
No major events on our calendar for May.
Coming up later
Fourth of JulyEvery year4 July every year
The Boston Pops concert and fireworks.
Why go: Arrive early for space on the Esplanade.
Where: Charles River Esplanade
Head of the Charles RegattaDate variesUsually mid-to-late October
One of the world's largest rowing races.
Why go: Free to watch from the river banks and bridges.
Where: Charles River
Fall foliageDate variesUsually October
Autumn leaf colour in the region's parks and countryside.
Why go: Hotels fill up and prices rise.
Where: Boston area and New England
Freedom Trail
A 4 km red-brick line linking 16 historic sites.
Fenway Park
The home of the Boston Red Sox, opened in 1912.
Boston Common and Public Garden
The oldest public park in the US and a garden with swan boats.
Museum of Fine Arts
A large art museum with collections from around the world.
Isabella Stewart Gardner Museum
An art collection in a Venetian-style palazzo.
Harvard and Cambridge
Harvard and MIT across the Charles River.
New England clam chowder
A creamy clam and potato soup.
Lobster roll
Lobster meat in a buttered bun.
Boston cream pie
Sponge cake with custard and chocolate, created at the Omni Parker House hotel.
Cannoli
Crisp Italian pastry tubes filled with ricotta cream.
💡 North End bakeries
Oysters
Fresh New England oysters.
💡 Oyster bars
Red Sox gear
Boston Red Sox team merchandise.
💡 Shops near Fenway
University merchandise
Harvard and MIT items.
💡 Campus shops
Cranberry products
Cranberry sauces and sweets from Massachusetts.
💡 Shops