Temperature
Pleasant by day, brisk at night.
65°Ftypical May high
Typical range
May climate
May in Boston
United States · North America
Mild days with cool nights and some sun.
One of the best months here
Daytime high
65°F
Lows around 51°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days, with mixed-length spells. About 11 wet days, the highest monthly average.
35%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
A mix of sunshine and cloud.
10 hMay sunshine
Heat & humidity by month
Very dryMay Heat feel
Easy airWarm airHot airHumid air
Hourly temperature pattern
In May, afternoons feel about 57° and nights feel near 47°.
FreezingVery coldColdCoolComfortableWarmNight hours
Clear sky
Mostly cloudy skies this month.
36%May Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in May.
8 mphMay Light breeze
More detailIncludes daypart comfort
Typical May day
May late afternoons are around 63°F, easing to about 59°F in early evening.
Avg temp Typical range
Morning58°F
Rain15%
Cloud62%
Humid airLow
Sun intensityModerate
Best windowMidday62°F
Rain16%
Cloud67%
Humid airLow
Sun intensityStrong
Late afternoon63°F
Rain17%
Cloud68%
Humid airLow
Sun intensityModerate
Early evening59°F
Rain14%
Cloud63%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 37 | 25 | 3.9 | 10 | 6.4 | 67 |
| Feb | 39 | 26 | 3.4 | 10 | 7.3 | 65 |
| Mar | 46 | 33 | 4.4 | 11 | 8.0 | 65 |
| Apr | 55 | 42 | 4.1 | 11 | 9.1 | 66 |
| May | 65 | 51 | 3.4 | 11 | 10.0 | 71 |
| Jun | 74 | 60 | 3.5 | 11 | 11.0 | 74 |
| Jul | 80 | 67 | 3.1 | 10 | 11.6 | 74 |
| Aug | 79 | 65 | 3.3 | 10 | 10.8 | 75 |
| Sep | 72 | 60 | 3.4 | 8 | 9.1 | 76 |
| Oct | 62 | 49 | 4.3 | 10 | 7.7 | 74 |
| Nov | 51 | 39 | 3.3 | 9 | 6.4 | 70 |
| Dec | 42 | 31 | 4.5 | 11 | 5.8 | 70 |
Similar climates
Similar
Similar travel styleWashington DCUnited StatesSimilar travel stylePhiladelphiaUnited StatesSimilar travel styleSarajevoBosniaSimilar travel styleQuebec CityCanada
Want a side-by-side climate view? Compare Boston with Washington DC.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 28, 2026
Data & methodology