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B.A.A. Boston Half Marathon

Boston, MA, USA

Partly cloudy throughout the day.

partly-cloudy-night
7
Wind
13mph
partly-cloudy-day
7
Wind
13mph
Details
partly-cloudy-day
7
Wind
12mph
partly-cloudy-day
7
Wind
12mph
partly-cloudy-day
8
Wind
12mph
partly-cloudy-day
8
partly-cloudy-day
8
partly-cloudy-day
8
partly-cloudy-day
8
Pre-Race
Race
Post-Race
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News

July 10, 2023
B.A.A. Boston Half Marathon Registration Opens Today
The B.A.A. Half Marathon gives a tour of Jamaica Plain, a different experience than the Boston Marathon. Registration opens July 10.

FAQ

When is the 2026 B.A.A. Boston Half Marathon?

The 2026 B.A.A. Boston Half Marathon will be held on Sunday November 8, 2026.

What is the time limit for the B.A.A. Boston Half Marathon?

The time limit for the B.A.A. Boston Half Marathon is 4 hours.

B.A.A. Boston Half Marathon Course Map

Loading Course Map...

B.A.A. Boston Half Marathon Weather History

B.A.A. Boston Half Marathon Weather Averages

Average Temp: 55°, Average Low: 48°, Average High: 63°
Time8AM9AM10AM11AM12PM
Temp
52°
54°
57°
59°
60°
Feel51°53°56°58°59°
Rain-----
Wind8mph
9mph
9mph
10mph
10mph
Dew46°46°46°46°46°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2025

Nov 9, 2025
Partly cloudy throughout the day with rain.
Low: 47°, High: 57°, Light Rain
Time8AM9AM10AM11AM12PM
Temp
partly-cloudy-day 52°
partly-cloudy-day 53°
partly-cloudy-day 54°
partly-cloudy-day 56°
partly-cloudy-day 57°
Feel52°53°54°56°57°
Rain-----
Wind9mph
11mph
9mph
10mph
13mph
Dew49°49°50°51°51°
RunScoreRun Score: 9Run Score: 8Run Score: 9Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2024

Nov 10, 2024
Partly cloudy throughout the day with late afternoon rain.
Low: 33°, High: 58°, Light Rain
Time8AM9AM10AM11AM12PM
Temp
partly-cloudy-day 39°
partly-cloudy-day 43°
partly-cloudy-day 49°
partly-cloudy-day 52°
partly-cloudy-day 54°
Feel38°40°45°52°54°
Rain-----
Wind3mph
6mph
9mph
14mph
13mph
Dew22°21°17°20°22°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2023

Nov 12, 2023
Partly cloudy throughout the day.
Low: 28°, High: 43°
Time8AM9AM10AM11AM12PM
Temp
partly-cloudy-day 33°
partly-cloudy-day 35°
partly-cloudy-day 38°
partly-cloudy-day 41°
cloudy 41°
Feel26°28°31°37°38°
Rain-----
Wind8mph
10mph
11mph
6mph
6mph
Dew22°22°22°23°24°
RunScoreRun Score: 6Run Score: 6Run Score: 7Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2022

Nov 13, 2022
Partly cloudy throughout the day with rain in the morning and afternoon.
Low: 42°, High: 56°, Moderate Rain
Time8AM9AM10AM11AM12PM
Temp
rain 52°
rain 52°
rain 52°
rain 52°
rain 51°
Feel52°52°52°52°51°
Rainlightlightlightlightlight
Wind5mph
2mph
4mph
10mph
9mph
Dew49°49°50°49°48°
RunScoreRun Score: 7Run Score: 6Run Score: 6Run Score: 8Run Score: 9

B.A.A. Boston Half Marathon 2020

Oct 11, 2020
Partly cloudy throughout the day.
Low: 49°, High: 67°
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 57°
partly-cloudy-day 58°
partly-cloudy-day 61°
partly-cloudy-day 60°
partly-cloudy-day 59°
Feel57°58°61°60°59°
Rain-----
Wind17mph
10mph
10mph
12mph
12mph
Dew40°39°39°40°42°
RunScoreRun Score: 7Run Score: 8Run Score: 8Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2019

Oct 13, 2019
Partly cloudy throughout the day.
Low: 51°, High: 67°
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 59°
partly-cloudy-day 62°
partly-cloudy-day 64°
partly-cloudy-day 66°
partly-cloudy-day 67°
Feel59°62°64°66°67°
Rain-----
Wind6mph
9mph
7mph
9mph
7mph
Dew51°50°51°50°50°
RunScoreRun Score: 9Run Score: 8Run Score: 9Run Score: 8Run Score: 9

B.A.A. Boston Half Marathon 2018

Oct 7, 2018
Cloudy skies throughout the day with rain.
Low: 60°, High: 79°, Light Rain
Time9AM10AM11AM12PM1PM
Temp
cloudy 68°
cloudy 71°
cloudy 74°
cloudy 76°
partly-cloudy-day 79°
Feel68°71°74°76°79°
Rain-----
Wind7mph
7mph
11mph
8mph
9mph
Dew63°65°65°66°66°
RunScoreRun Score: 8Run Score: 8Run Score: 7Run Score: 8Run Score: 7

B.A.A. Boston Half Marathon 2017

Oct 8, 2017
Partly cloudy throughout the day with rain.
Low: 70°, High: 75°, Moderate Rain
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 74°
partly-cloudy-day 74°
rain 73°
rain 70°
rain 72°
Feel74°74°73°70°72°
Rain--lightlightlight
Wind19mph
15mph
14mph
18mph
18mph
Dew67°67°68°68°69°
RunScoreRun Score: 5Run Score: 6Run Score: 5Run Score: 4Run Score: 5

B.A.A. Boston Half Marathon 2016

Oct 9, 2016
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 50°, High: 64°, Heavy Rain
Time9AM10AM11AM12PM1PM
Temp
rain 57°
rain 57°
rain 56°
rain 55°
rain 54°
Feel57°57°56°55°54°
Rainmoderatemoderatelightmoderatemoderate
Wind11mph
10mph
12mph
11mph
12mph
Dew56°56°54°53°53°
RunScoreRun Score: 5Run Score: 5Run Score: 5Run Score: 5Run Score: 5

B.A.A. Boston Half Marathon 2015

Oct 11, 2015
Partly cloudy throughout the day.
Low: 45°, High: 68°
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 54°
partly-cloudy-day 58°
partly-cloudy-day 61°
partly-cloudy-day 64°
partly-cloudy-day 65°
Feel54°58°61°64°65°
Rain-----
Wind13mph
16mph
17mph
16mph
16mph
Dew45°45°45°43°42°
RunScoreRun Score: 8Run Score: 7Run Score: 6Run Score: 7Run Score: 7

B.A.A. Boston Half Marathon 2014

Oct 12, 2014
Clear conditions throughout the day.
Low: 39°, High: 59°
Time9AM10AM11AM12PM1PM
Temp
clear-day 48°
clear-day 53°
clear-day 55°
clear-day 57°
clear-day 58°
Feel44°53°55°57°58°
Rain-----
Wind7mph
7mph
9mph
9mph
8mph
Dew40°40°39°38°38°
RunScoreRun Score: 8Run Score: 9Run Score: 9Run Score: 9Run Score: 9

B.A.A. Boston Half Marathon 2013

Oct 13, 2013
Partly cloudy throughout the day.
Low: 46°, High: 60°
Time9AM10AM11AM12PM1PM
Temp
clear-day 55°
partly-cloudy-day 57°
cloudy 58°
cloudy 60°
cloudy 60°
Feel55°57°58°60°60°
Rain-----
Wind6mph
12mph
13mph
10mph
9mph
Dew47°46°46°46°46°
RunScoreRun Score: 9Run Score: 8Run Score: 7Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2012

Oct 7, 2012
Partly cloudy throughout the day with rain.
Low: 46°, High: 57°, Light Rain
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 53°
partly-cloudy-day 55°
partly-cloudy-day 56°
partly-cloudy-day 56°
cloudy 57°
Feel53°55°56°56°57°
Rain-----
Wind5mph
4mph
3mph
6mph
6mph
Dew41°40°40°38°38°
RunScoreRun Score: 9Run Score: 9Run Score: 9Run Score: 9Run Score: 9

B.A.A. Boston Half Marathon 2011

Oct 9, 2011
Clear conditions throughout the day.
Low: 59°, High: 86°
Time9AM10AM11AM12PM1PM
Temp
clear-day 68°
clear-day 72°
clear-day 79°
clear-day 81°
clear-day 84°
Feel68°72°79°81°82°
Rain-----
Wind7mph
7mph
9mph
10mph
10mph
Dew52°53°51°52°51°
RunScoreRun Score: 8Run Score: 8Run Score: 7Run Score: 7Run Score: 7

B.A.A. Boston Half Marathon 2010

Oct 10, 2010
Clear conditions throughout the day.
Low: 41°, High: 66°
Time9AM10AM11AM12PM1PM
Temp
clear-day 50°
clear-day 52°
clear-day 55°
clear-day 58°
clear-day 61°
Feel46°52°55°58°61°
Rain-----
Wind9mph
10mph
7mph
7mph
10mph
Dew32°33°31°30°30°
RunScoreRun Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 8

B.A.A. Boston Half Marathon 2009

Oct 11, 2009
Partly cloudy throughout the day.
Low: 37°, High: 61°
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 47°
clear-day 53°
partly-cloudy-day 57°
partly-cloudy-day 60°
partly-cloudy-day 61°
Feel43°53°57°60°61°
Rain-----
Wind7mph
10mph
14mph
15mph
15mph
Dew37°37°37°37°38°
RunScoreRun Score: 8Run Score: 8Run Score: 7Run Score: 7Run Score: 7

B.A.A. Boston Half Marathon 2008

Oct 12, 2008
Clear conditions throughout the day with early morning rain.
Low: 45°, High: 66°, Light Rain
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 53°
partly-cloudy-day 59°
clear-day 60°
clear-day 61°
partly-cloudy-day 63°
Feel53°59°60°61°63°
Rain-----
Wind4mph
2mph
5mph
5mph
7mph
Dew44°43°43°42°42°
RunScoreRun Score: 9Run Score: 8Run Score: 9Run Score: 9Run Score: 9

B.A.A. Boston Half Marathon 2007

Oct 7, 2007
Partly cloudy throughout the day with morning rain.
Low: 54°, High: 69°, Light Rain
Time9AM10AM11AM12PM1PM
Temp
cloudy 58°
cloudy 57°
rain 56°
cloudy 57°
cloudy 58°
Feel58°57°56°57°58°
Rain--light--
Wind15mph
14mph
10mph
11mph
8mph
Dew54°53°53°52°49°
RunScoreRun Score: 7Run Score: 7Run Score: 8Run Score: 8Run Score: 9

B.A.A. Boston Half Marathon 2006

Oct 8, 2006
Clear conditions throughout the day.
Low: 40°, High: 66°
Time9AM10AM11AM12PM1PM
Temp
clear-day 48°
clear-day 55°
clear-day 60°
clear-day 64°
clear-day 66°
Feel48°55°60°64°66°
Rain-----
Wind0mph
2mph
3mph
6mph
4mph
Dew42°45°45°42°38°
RunScoreRun Score: 8Run Score: 8Run Score: 9Run Score: 9Run Score: 9

B.A.A. Boston Half Marathon 2005

Oct 9, 2005
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 50°, High: 54°, Heavy Rain
Time9AM10AM11AM12PM1PM
Temp
rain 50°
cloudy 50°
cloudy 50°
cloudy 51°
cloudy 52°
Feel45°46°45°51°52°
Rainlight----
Wind15mph
11mph
12mph
11mph
11mph
Dew49°49°49°50°49°
RunScoreRun Score: 7Run Score: 8Run Score: 8Run Score: 8Run Score: 8

B.A.A. Boston Half Marathon 2004

Oct 10, 2004
Partly cloudy throughout the day.
Low: 52°, High: 65°
Time9AM10AM11AM12PM1PM
Temp
partly-cloudy-day 60°
cloudy 60°
partly-cloudy-day 63°
partly-cloudy-day 65°
cloudy 61°
Feel60°60°63°65°61°
Rain-----
Wind11mph
10mph
9mph
7mph
9mph
Dew53°51°48°43°43°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 9Run Score: 9

B.A.A. Boston Half Marathon 2003

Oct 12, 2003
Partly cloudy throughout the day with rain.
Low: 51°, High: 57°, Heavy Rain
Time9AM10AM11AM12PM1PM
Temp
cloudy 55°
rain 56°
rain 55°
rain 55°
rain 54°
Feel55°56°55°55°54°
Rain-lightlightlightlight
Wind14mph
12mph
16mph
15mph
17mph
Dew51°51°53°54°53°
RunScoreRun Score: 7Run Score: 6Run Score: 5Run Score: 5Run Score: 5

B.A.A. Boston Half Marathon 2002

Oct 13, 2002
Cloudy skies throughout the day with a chance of rain throughout the day.
Low: 55°, High: 57°, Heavy Rain
Time9AM10AM11AM12PM1PM
Temp
rain 56°
rain 56°
rain 56°
rain 57°
rain 57°
Feel56°56°56°57°57°
Rainlightlightlightlightlight
Wind13mph
12mph
12mph
12mph
11mph
Dew54°55°56°56°56°
RunScoreRun Score: 8Run Score: 6Run Score: 6Run Score: 8Run Score: 6

B.A.A. Boston Half Marathon 2001

Oct 14, 2001
Cloudy skies throughout the day with rain.
Low: 53°, High: 56°, Light Rain
Time9AM10AM11AM12PM1PM
Temp
cloudy 55°
cloudy 56°
cloudy 56°
cloudy 56°
rain 56°
Feel55°56°56°56°56°
Rain----light
Wind8mph
9mph
10mph
8mph
8mph
Dew55°56°56°56°56°
RunScoreRun Score: 9Run Score: 9Run Score: 8Run Score: 9Run Score: 7