The 2025 event has concluded.

Charles River Marathon

Boston, MA, USA • September 7, 2025
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rain Cloudy skies throughout the day with a chance of rain throughout the day.

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When is the 2025 Charles River Marathon?

The 2025 Charles River Marathon will be held on Sunday September 7, 2025.

Is the Charles River Marathon a Boston Marathon Qualfier?

Yes, the Charles River Marathon is an official Boston Marathon qualifier.

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Historical Weather & Results

RunScore
Run Score: 7
Temp
71°F
Min/Max
63°/72°F
Dew
57°F
Days of Rain
1/2
Wind
9mph
Tap a row for details.
YearLow / HighRain

Charles River Marathon 2024 Weather History

Partly cloudy throughout the day.

2024
clear-day
55°/ 69°-
Run Score: 8

Charles River Marathon 2023 Weather History

Cloudy skies throughout the day with rain.

2023
cloudy
71°/ 76°Light
Run Score: 7
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR
You Need an Account For That

Setting up a racecast.io account will allow you to start building a reputation in the community. Over time you'll be able to rate races, join the discussion, and post in the community.

Right now we are invite only, you can get on the waitlist by entering your email below:

OR