Boston weather in August
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Boston August weather at a glance
In August, Boston averages 21.5°C, with typical highs of 26.4°C and lows of 16.9°C. The historical average is 11 wet days and 71% humidity.
Boston August temperature & humidity
Boston August rain & wet days
Pack a compact umbrella. Keep an indoor stop available between outdoor activities.
What to wear in Boston in August
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 26.4°C
- Morning & eveningLong sleeves with a jacket or cardigan · average low 16.9°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
Coupang affiliate links · We earn a commission on purchases. Products are sold on the Korean Coupang store.
Boston August sunrise & sunset times
2026 August · Local time (America/New_York)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-08-01 | 05:37 | 20:04 | 14h 27m |
| 2026-08-15 | 05:52 | 19:45 | 13h 54m |
| 2026-08-31 | 06:08 | 19:20 | 13h 11m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Boston travel updates
Watch live CCTV
No public camera link is available for this destination yet. Check the weather or map instead.
Today’s weather and forecast
Check temperature, rain and wind in Windy.
Forecast · Windy. Monthly averages are in the Temperature section.
Boston news search
Search for recent news and check publication dates before you travel.
Boston city map
This map shows the city area, not a specific meeting point.
Boston travel essentials
Popular MyRealTrip products · city search, sorted by sales · Product names are in Korean.
Affiliate links · We may earn a commission from purchases. Updated 2026-10-18Explore with Klook
Klook.comAffiliate widget · We may earn a commission on bookings.
Boston hotel search · Trip.com
Search hotels by destination, dates and number of guests. The Trip.com widget is in Korean.
Affiliate widget · A qualifying booking may earn us a commission. Trip.com may use cookies in this search widget.
Best months to visit Boston
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
August weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Boston weather like in August?
In August, Boston averages 21.5°C, with typical highs of 26.4°C and lows of 16.9°C. The historical average is 11 wet days and 71% humidity. Our weather-comfort rating for this month is good.
Does it rain a lot in Boston in August?
There are about 11 wet days in August. A compact umbrella is still useful.
What should I wear in Boston in August?
Choose breathable summer clothes and pack sun protection. Showers are possible, so a compact umbrella is useful.
What are the best months to visit Boston?
Recent weather data rates June, August, September, October among the more comfortable months.
Where can I check Boston weather in August in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Boston in August?
On 2026-08-15, calculated sunrise is 05:52 and sunset is 19:45 in local time (America/New_York). Times vary by date and terrain.
Boston weather by month
More Americas destinations in August
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations