Peak in July
Coolest in January
Heavy in July
Peak in dry season
Sea Temperature
Atlantic Ocean
Annual Average
Consider a wetsuit for extended swimming
Based on average sea surface temperature
Boston coastline
Boston Monthly Weather Guide
Click any month to explore daily weather forecasts
January
February
March
April
May
June
July
August
September
October
November
December
Essential Travel Info for Boston
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Connect
Greater Boston uses10-digit dialing. Th...
Safety
Moderate Safety
GPI: 2.44
Best Time to Visit Boston
Location, climate overview & historical trends
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📍 42.3600° N, 71.0580° W
Open in Google MapsBoston is a prominent destination in United States.
Located at 42.36°N latitude,Boston experiences a temperate climate with four distinct seasons.
Based on 30 years of data, July is the warmest month (avg. 28°C), while January is the coolest. July sees the most rain (27% chance), making September the driest month.
Historical Climate Trend
30-Year Analysis+1.56°C
Total over 30 years
+0.52°C
Per decade
Linear regression analysis of historical maximum temperatures for Boston, based on 1995-2024 satellite data from NASA POWER.
Best Time to Visit
NASA POWER Data (1991-2021)May, June, July
Best months to visit
15°C
Avg High
Based on 30 years of NASA satellite data,Boston receives approximately 654mm of rainfall annually. These months offer optimal temperatures and minimal rain probability for your visit.
Climate Trends
EXCLUSIVE1995-2040 Temperature Trend
1995 Avg
14.6°
2024 Avg
15.9°
2040 Proj
16.6°
+0.52°C
per decade (observed)
+0.47°C
per decade (CMIP6)
🌡️ Boston has warmed by +1.6°C since 1995. By 2040, an additional +0.7°C is projected (based on CMIP6 rate of 0.466°C/decade), for a total of +2.3°C from 1995 baseline.
NASA POWER (1995-2024) + CMIP6 (CMCC_CM2_VHR4, EC_Earth3P_HR, FGOALS_f3_H, HiRAM_SIT_HR, MRI_AGCM3_2_S, NICAM16_8S)
Travel Intelligence
Exclusive flight analytics & health data for Boston
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Airport-to-Airport Logistics
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Flight Connectivity Analysis
Airport traffic data & seasonal patterns
Extremely busy airport
0
slots per day
Peak
Aug
Low
Nov
Monthly Traffic Distribution
Key Connections
Health & Safety Advisory
CDC travel health recommendations
No Special Vaccinations Required
Standard travel precautions apply
Source: CDC Travelers' Health
View Complete Health GuideBoston Climate Data by Month
Historical temperature and precipitation averages
| Month | Avg High (°C) | Rain Probability (%) | Status |
|---|---|---|---|
| January | 2°C | 25% | ❄️ Cold |
| February | 4°C | 24% | ❄️ Cold |
| March | 8°C | 25% | Neutral |
| April | 13°C | 27% | Neutral |
| May | 19°C | 26% | 😊 Pleasant |
| June | 25°C | 27% | 😊 Pleasant |
| July | 28°C | 27% | 😊 Pleasant |
| August | 27°C | 24% | ✨ Perfect |
| September | 23°C | 21% | ✨ Perfect |
| October | 17°C | 23% | 😊 Pleasant |
| November | 10°C | 24% | Neutral |
| December | 5°C | 26% | Neutral |
Weather in Cities Near Boston
Explore climate data for popular destinations within easy reach
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Compare weather conditions with nearby destinations for your trip planning
Compare Boston Weather vs Popular Destinations
Similar Climate Destinations
Discover destinations with weather similar to Boston
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Kazakhstan
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Bariloche
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These destinations share similar weather patterns with Boston. Perfect alternatives if you're looking for the same climate in a different location.
Boston Weather FAQ
When is the best time to visit Boston?
Honestly, look for months with mild temperatures (20°C-25°C) and low rain chance. Based on historical data, May, June, July are usually great choices.
When is the hottest month in Boston?
July is historically the hottest month in Boston with average highs of 28°C.
When does it rain the most in Boston?
July typically sees the highest probability of rain (27%).
Is Boston expensive?
Prices vary by season. The "Perfect" weather months usually coincide with peak tourist season and higher prices, while the rainy or cold months offer better deals.