Richmond Runfest Marathon
Richmond Runfest Marathon race day weather
Mild conditions, adjust for humidity
Runners will face a temperature range from 56°F to 64°F, with high humidity at 78%. Wind will be light overall, with a headwind during miles 4, 7-8, 11, and 16. Given the humidity, it's advisable to start conservatively and maintain hydration, especially during the exposed stretches of miles 4, 11, and 20-23.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Richmond Runfest Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Richmond Runfest Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
About the Richmond Runfest Marathon
The Richmond Runfest Marathon runs through Richmond upon Thames in southwest London, starting inside the Royal Botanic Gardens, Kew and finishing at Old Deer Park. The England Athletics certified course follows the Thames Towpath past Ham House, Teddington Lock, Kingston Riverside and Hampton Court Palace. It is a Boston Marathon qualifier and a London Marathon Good for Age qualifying course. The same weekend also includes a half marathon and a 10K over the Richmond RUN-FEST festival.
