United States Boston Weather in July — Climate Guide
July in Boston is very-high
July is very-high for Boston.
July is Boston's hottest month — 28°C / 82°F days, 19°C / 66°F nights, 67% humidity oppressive. July 4 Independence Day is the canonical Boston tourism event with the Boston Pops Esplanade July 4 concert + fireworks (CBS national broadcast).
The Boston Pops July 4 concert is the canonical US Independence Day fireworks concert — Boston Pops orchestra performs the 1812 Overture with live cannon-fire on the Charles River Esplanade, followed by fireworks over the Charles. Free public lawn seating fills up by noon. CBS national broadcast.
Travel score
Boston July Weather Stats
Avg High
28°C
Avg Low
19°C
Rainy Days
9
85mm total
Sunshine
11h
Daily avg
Humidity
67%
humid
UV Index
10
Very high
Wind
11 km/h
Gusts 28
Sea Temp
21°C
swimming
Crowds
Very busy
At attractions
July Sunrise & Sunset
Air Quality
PM2.5
10 μg/m³
PM10
22 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
31°C
Nighttime
20°C
Humidity and wind affect how the actual temperature feels.
Wind
11 km/h
Max gust 28 km/h
Activities Recommended for July
July Travel Pros & Cons
Pros
- Boston Pops Esplanade July 4 fireworks (canonical US fireworks)
- North End Italian feasts begin
- Long daylight (15h 20m)
- Fenway Park Red Sox All-Star break
Cons
- Hottest + most humid month
- July 4 week hotels at year-max
- Afternoon thunderstorm risk peak
- Summer school break family crowds
July Events & Festivals
- July 4 Independence Day
- Boston Pops Esplanade July 4 concert + fireworks (the canonical US Independence Day)
- Italian feasts in North End (every weekend July-September)
Boston in July — Full Picture
July is Boston's hottest month — 28°C / 82°F days, 19°C / 66°F nights, 67% humidity oppressive. July 4 Independence Day is the canonical Boston tourism event with the Boston Pops Esplanade July 4 concert + fireworks (CBS national broadcast).
The Boston Pops July 4 concert is the canonical US Independence Day fireworks concert — Boston Pops orchestra performs the 1812 Overture with live cannon-fire on the Charles River Esplanade, followed by fireworks over the Charles. Free public lawn seating fills up by noon. CBS national broadcast.
North End Italian feasts begin (every weekend July-September) — St. Anthony's Feast (last weekend July, the oldest North End feast since 1919), Fisherman's Feast (mid-August), Saint Agrippina di Mineo Feast (early August). Free street festivals with Italian processions + music + Italian-American food.
Afternoon thunderstorm risk peak — pack umbrella + light rain jacket. Hydration essential. Sunscreen SPF 30+ reapply every 2 hours. AC light layer for indoor temperature swings.
Hotels at year-maximum for July 4 week (book 6+ months ahead). Marathon Day overlap + summer family tourism + July 4 fireworks tourists converge for the peak Boston demand week.
The smart July move: target either the first or last week (avoiding July 4 week). Weekday departures (Tuesday-Thursday) 20-30% below weekend pricing.
What to Wear & What to Pack
Hottest month — light cotton t-shirt + shorts + sandals. Sunscreen SPF 30+ reapply every 2 hours. Humidity oppressive. AC light layer essential indoor temperature swings. Afternoon thunderstorms.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
14°C
4.3°C
11.7/mo
Summer (Jun·Jul·Aug)
Current26.7°C
17.3°C
9.7/mo
Autumn (Sep·Oct·Nov)
17°C
8.3°C
9.7/mo
Winter (Dec·Jan·Feb)
3.7°C
-4.7°C
11/mo
Boston Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 2° | -6° | 11d·90mm | 5h | 65% | 2 | Quiet | Low season | |
| 4° | -5° | 10d·80mm | 6h | 64% | 3 | Quiet | Low season | |
| 8° | -1° | 12d·95mm | 7h | 62% | 4 | Quiet | Low season | |
| 14° | 4° | 12d·95mm | 8h | 60% | 5 | Very busy | Peak | |
| May (Best) | 20° | 10° | 11d·90mm | 9h | 60% | 7 | Very busy | Peak |
| June (Best) | 25° | 15° | 11d·90mm | 10h | 64% | 9 | Busy | Peak |
| July (Best) | 28° | 19° | 9d·85mm | 11h | 67% | 10 | Very busy | Peak |
| August (Best) | 27° | 18° | 9d·90mm | 10h | 70% | 9 | Very busy | Peak |
| September (Best) | 23° | 14° | 9d·90mm | 9h | 65% | 7 | Very busy | Peak |
| October (Best) | 17° | 8° | 9d·95mm | 7h | 65% | 5 | Very busy | Peak |
| 11° | 3° | 11d·95mm | 5h | 65% | 3 | Busy | Peak | |
| 5° | -3° | 12d·100mm | 5h | 65% | 2 | Very busy | Peak |
View Other Months
Boston July Hotel Picks
Frequently Asked Questions
Is July a good time to visit Boston?
Boston in July is very-high. Tourist crowds are very busy and flight/hotel prices are peak.
What's the average temperature in Boston in July?
Boston July averages a high of 28°C and a low of 19°C.
Does it rain much in Boston in July?
Boston July averages 85mm of rainfall over about 9 rainy days.
What should I wear in Boston in July?
Hottest month — light cotton t-shirt + shorts + sandals. Sunscreen SPF 30+ reapply every 2 hours. Humidity oppressive. AC light layer essential indoor temperature swings. Afternoon thunderstorms.
What time are sunrise and sunset in Boston in July?
Boston July sunrise is 05:15 and sunset is 20:20, with 15h 5m of daylight.
What's the air quality like in Boston in July?
Boston July air quality (AQI) averages 35, rated Good. PM2.5 averages 10μg/m³.
What activities are recommended in Boston in July?
In July, Boston is great for Boston Pops July 4 Esplanade fireworks, North End Italian feasts, Fenway Park Red Sox.
Is July peak season in Boston?
Boston July crowds are very busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Boston
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.