# IRONMAN Switzerland Thun

Canonical: https://findmytris.com/events/im-switzerland
Official page: https://www.ironman.com/races/im-switzerland

- **Date:** July 4, 2027
- **Location:** Thun, Switzerland
- **Continent:** Europe
- **Race type:** IRONMAN — 140.6 mi (226 km)
- **Swim:** Lake
- **Bike course:** Hilly
- **Run course:** Flat
- **Avg. air temperature:** 68°F (20°C)
- **Avg. water temperature:** 63°F (17°C)
- **Nearest airport:** Bern Airport (BRN)

## FAQ

### When is IRONMAN Switzerland Thun?

IRONMAN Switzerland Thun is scheduled for July 4, 2027.

### Where is IRONMAN Switzerland Thun?

IRONMAN Switzerland Thun is held in Thun, Switzerland (Europe).

### What is the course like at IRONMAN Switzerland Thun?

IRONMAN Switzerland Thun is an IRONMAN race (140.6 mi (226 km)) with a lake swim, a hilly bike course and a flat run course.

### Is IRONMAN Switzerland Thun wetsuit legal?

The average water temperature is 63°F (17°C), which is within the age-group wetsuit-legal range (up to and including 76.1°F / 24.5°C) under the 2026 IRONMAN Competition Rules. The official call is made from the water temperature measured on race morning.

### What is the nearest airport to IRONMAN Switzerland Thun?

The nearest airport listed for IRONMAN Switzerland Thun is Bern Airport (BRN).

### How do I register for IRONMAN Switzerland Thun?

Registration is handled on the official IRONMAN race page: https://www.ironman.com/races/im-switzerland

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Data compiled by Find My Tris from official IRONMAN pages; please cite findmytris.com.