Experience a quintessential English riverside run at the Henley River Half Marathon, 10k & Junior Race, set for Saturday, 5th September 2026 in the picturesque town of Henley-on-Thames. Starting from the iconic Temple Island Meadows at Remenham Farm, this event offers a stunning, undulating trail course that winds alongside the serene River Thames. Choose your challenge: a fast and scenic half-marathon, a lively 10K, or a fun Junior Race, each providing a perfect mix of natural beauty and a supportive, energetic atmosphere. Renowned for its friendly marshals and festive event village, this RunThrough event rewards every finisher with a unique themed medal, free race photos, and post-race goodies. Whether you're chasing a personal best or simply soaking up the late-summer scenery, it’s an ideal way to enjoy one of the UK's most beautiful running routes. Secure your entry for a memorable race day where classic English charm and running community spirit flow together.
Races Offered
Half Marathon
Sep 05, 2026
straighten
Distance —
21.1K
terrain
Type ——
timer
09:00
10 km
Sep 05, 2026
straighten
Distance —
10K
terrain
Type ——
timer
09:30
Weather History
These values represent the 3-year monthly averages for September in Henley-on-Thames.
thermostatTemperature
11.3° / 19.2°
wb_sunnyFeels like
9.0° / 16.9°
light_mode
Avg sunshine hours
8h 14m
water_drop
Avg rainfall
3.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
14.0 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (3.5)
humidity_mid
Humidity
79.9%
wb_twilight
Sunrise
06:39
nightlight
Sunset
19:17
About Henley-on-Thames
Learn more about the host city, Henley-on-Thames.
Henley-on-Thames is a town on the River Thames in South Oxfordshire, England. Henley is perhaps most famous as the home of the well-known international rowing tournament, the Henley Royal Regatta, held each year in late June and early July.
