Boston Marathon (UK) Half Marathon

Boston, Lincolnshire, England, UK · April 11, 2027·
partly-cloudy-day45°·50° high·Breezy·Dry
9
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Race Day Weather

partly-cloudy-day
45°at start
55° high
Breezy
Dry
Your goal
0:00:00

Cool start — fast day potential

A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 55°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 69% is worth noting for effort level, especially in later miles.

Race day forecast available in 163 days
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Pace Calculator

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Race Info

The Boston Half Marathon starts in Boston Market Place and runs east out of town through the flat fenland villages around Butterwick before turning south toward the Freiston Shore coast. It returns through Fishtoft to finish at Boston College. The course is on open roads and stays within a few metres of sea level throughout.

Race weekend

Sunday, April 11
8:00 AMMarathon (26.2 mi)
8:15 AMHalf Marathon (13.1 mi)
8:30 AM10K (6.2 mi)
8:30 AM5K (3.1 mi)

FAQ

When is the 2027 Boston Marathon (UK) Half Marathon?

The 2027 Boston Marathon (UK) Half Marathon will be held on Sunday April 11, 2027.

What will the weather be like for the 2027 Boston Marathon (UK) Half Marathon?

The forecast calls for a high of 56°F and a low of 42°F with a 6% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 4 years of data
Avg Temp
49°F
L:47° H:51°
RunScore
9
Conditions
Rain Freq
25%
1 of 4 yrs
Wind15mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
46°/52°-
8
2025
clear-day
50°/56°-
9
2024
rain
45°/46°Light
8
2023
partly-cloudy-day
45°/50°-
10