Boston weather in June
June in Boston: warm, rainy, with very humid — one of the best months to visit.
#1 of 12 months in Boston · #93 of 604 destinations to visit in June · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Boston climate normals — June
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 82 mm / 3.2 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 75% | 💦 very humid |
| Dew point | 14°C / 56°F | |
| Sunshine | 10.9 h/day | |
| Daylight | 15.2 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 51 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Boston in June — FAQ
- Is June a good time to visit Boston?
- June in Boston: warm, rainy, with very humid — one of the best months to visit. It ranks #1 of 12 months for Boston on SeasonMap's comfort score (90/100).
- What is the weather like in Boston in June?
- In June, Boston averages a daily high of 24.6°C and a low of 15.6°C, with about 81.8 mm of rain over roughly 11.2 rainy days.
- What is the air quality in Boston in June?
- Boston has a mean US Air Quality Index of about 51 in June.