Boston, USAQuick decision
When to visit Boston?
🌞 Best time overall
August
🌡️ Optimal temperature
18°C–28°C in August
🌧 Least rain
34% rainy days in August
🌧 Wettest month
December (34%)
📅 Best score
8.5/10
By trip type
Best time by type of trip
Freedom TrailApril–October — 4 km of American history, 16 sites.
Fall FoliageOctober — New England, spectacular colours.
SeafoodYear-round — clam chowder, lobster roll and Legal Sea Foods.
Harvard & MITYear-round — campuses, bookshops and Cambridge district.
Monthly climate data
Boston weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | -5°C | 3°C | 32% | 3.2 | 8.0h | 4.1/10 |
| 🌨️ February | -4°C | 4°C | 35% | 3.1 | 8.7h | 4.1/10 |
| 🌦️ March | -1°C | 8°C | 35% | 3.6 | 9.9h | 4.6/10 |
| 🌦️ April | 4°C | 13°C | 40% | 3.6 | 10.1h | 5.5/10 |
| 🌤️ May | 9°C | 19°C | 38% | 3.0 | 12.0h | 7.3/10 |
| 🌤️ June | 15°C | 25°C | 38% | 2.6 | 13.0h | 8.1/10 |
| 🌤️ July | 19°C | 29°C | 39% | 3.7 | 13.2h | 8.2/10 |
| 🌤️ August | 18°C | 28°C | 34% | 2.5 | 12.5h | 8.5/10 |
| 🌤️ September | 15°C | 23°C | 31% | 3.6 | 10.8h | 7.7/10 |
| ⛅ October | 9°C | 17°C | 32% | 3.9 | 9.7h | 7.0/10 |
| 🌫️ November | 2°C | 10°C | 30% | 2.8 | 8.7h | 5.0/10 |
| 🌫️ December | -3°C | 5°C | 34% | 3.7 | 7.6h | 4.0/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Acceptable
Average 13°C, 38% rainy days, 10.7h sunshine/day. Score: 5.8/10.
☀️ Summer (Jun–Aug) — Good time
Average 27°C, 37% rainy days, 12.9h sunshine/day. Score: 8.3/10.
🍂 Autumn (Sep–Nov) — Acceptable
Average 17°C, 31% rainy days, 9.7h sunshine/day. Score: 6.6/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 4°C, 34% rainy days, 8.1h sunshine/day. Score: 4.1/10.
Accommodation
Find a place to stay in Boston
Check availability during the recommended period
Tip : off-peak months (December, January) are cheapest but weather is significantly worse.
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Activities and tours in Boston
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
August is ideal with 34% rainy days and 28°C.
December is the wettest month with 34% rainy days.
Yes, August is the best month with an average of 28°C.
In winter, the average score is 4.1/10. Difficult period — prefer the peak season.
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