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La Châtelaine By RUN’IN RENNES et IAD

Name: La Châtelaine By RUN’IN RENNES et IAD
Start: 2026-09-27
End: 2026-09-27
Location: Rennes

Rennes, Brittany, France

calendar_today 27 Sep, 2026

directions_run Running

language Official Website

sell €15.00 – €100.00

About the Event

On September 27, 2026, RUN’IN RENNES et IAD invites runners to participate in La Châtelaine, featuring two engaging 10K events. Competitors can choose between the LA CHÂTELAINE entreprise for teams and the solo-oriented LA CHÂTELAINE solo 10km race.
Rennes will come alive with athletic spirit as participants navigate through this challenging yet rewarding course in the heart of the city.

Races Offered

LA CHÂTELAINE entreprise

Sep 27, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

10:00

sell

€100.00

LA CHÂTELAINE solo 10km

Sep 27, 2026

straighten

Distance — 10K

terrain

Type — Running

timer

10:00

sell

€15.00

Weather History

These values represent the 3-year monthly averages for September in Rennes.

thermostat Temperature

12.8° / 21.3°

wb_sunny Feels like

11.4° / 19.6°

light_mode Avg sunshine hours

9h 8m

water_drop Avg rainfall

2.7 mm

ac_unit Avg snowfall

—

air Avg wind speed

11.9 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (3.5)

humidity_mid Humidity

78.3%

wb_twilight Sunrise

07:44

nightlight Sunset

20:17

About Rennes

Learn more about the host city, Rennes.

Rennes is the chief city of Brittany in northwest France. It's mostly modern and industrial, but has many grand 18th and 19th century buildings, and survivors of earlier times. It's also well-endowed with cultural attractions. In 2020 the city population was 222,485, with about 150,000 more living in the wider metropolis.