Richmond Runfest Half Marathon

Richmond, England, UK · September 12, 2027
partly-cloudy-day58°·63° high·Breezy·Dry
6
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Race Day Weather

partly-cloudy-day
58°at start
66° high
Breezy
Dry
Your goal
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Comfortable temps

Mild 58°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 66°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 78% is worth noting for effort level, especially in later miles.

Race day forecast available in 336 days
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Pace Calculator

Distance: 13.1mi
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Race Info

The Richmond Half Marathon runs 13.1 miles through Richmond upon Thames in southwest London, starting inside the Royal Botanic Gardens, Kew, next to the Orangery, and finishing at Old Deer Park near Pools on the Park. The England Athletics certified course follows the Thames Towpath past Ham House, Teddington Lock, Kingston Riverside and Hampton Court Palace on a mix of road, path and gravel. It runs on the Sunday of the Richmond RUN-FEST weekend, alongside the full marathon, with the Richmond 10K held inside Kew Gardens the day before.

Race weekend

Saturday, September 11
8:30 AM10K (6.2 mi)
Sunday, September 12
9:30 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Richmond Runfest Half Marathon?

The 2027 Richmond Runfest Half Marathon will be held on Sunday September 12, 2027.

What is the time limit for the Richmond Runfest Half Marathon?

The time limit for the Richmond Runfest Half Marathon is 3.5 hours.

What will the weather be like for the 2027 Richmond Runfest Half Marathon?

The forecast calls for a high of 67°F and a low of 53°F with a 6% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 7 years of data
Avg Temp
62°F
L:58° H:66°
RunScore
6
Conditions
Rain Freq
14%
1 of 7 yrs
Wind6mph
Dew54°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
66°/71°Light
4
2025
cloudy
53°/58°-
8
2024
clear-day
55°/62°-
7
2023
partly-cloudy-day
71°/80°-
3
2022
partly-cloudy-day
47°/60°-
8
2021
partly-cloudy-day
58°/65°-
6
2019
partly-cloudy-day
57°/68°-
7