Aosta21k

About the Event

Experience the ultimate alpine contradiction at the AOSTA21K on May 23, 2026: a perfectly flat, FIDAL-certified 21.1km course set in the heart of the towering Valle d'Aosta. Run past ancient Roman monuments and beneath the gaze of epic mountain peaks on a route designed for speed, offering a rare chance to chase a personal best in one of Italy's most breathtaking and dramatic landscapes.

Races Offered

10 km

May 24, 2026

straighten

Distance — 10K

terrain

Type — —

timer

7 days remaining

21 km

May 24, 2026

straighten

Distance — 21K

terrain

Type — —

timer

7 days remaining

Weather History

These values represent the 3-year monthly averages for May in Aosta.

thermostat Temperature

9.7° / 20.4°

wb_sunny Feels like

8.4° / 19.3°

light_mode Avg sunshine hours

10h 50m

water_drop Avg rainfall

5.9 mm

ac_unit Avg snowfall

0.4 cm

air Avg wind speed

3.8 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (4.2)

humidity_mid Humidity

69.6%

wb_twilight Sunrise

05:59

nightlight Sunset

20:55

About Aosta

Learn more about the host city, Aosta.

Aosta is the capital of Italian autonomous region of Aosta Valley. The town is in a small valley with houses going up the slopes of the surrounding mountains.