At what water temperature is a wetsuit mandatory in triathlon?

World Triathlon rules: wetsuit mandatory below 16C for elite athletes; below 20C for age groupers. Above 22C, wetsuits are typically banned due to overheating risk.

How does wetsuit buoyancy affect triathlon swim splits?

A legal triathlon wetsuit provides positive buoyancy of approximately 1-2 kg, improving body position and reducing drag. Time savings: 1.5-3% in open water, or approximately 30-90 seconds in a 1.5km swim.

Wetsuit Thickness and Water Temperature Selection Guide

Match wetsuit thickness to water temperature. Above 22C: shorty 2mm; 18-22C: 3mm full suit; 13-18C: 4/3mm; 10-13C: 5/4mm; below 10C: 6/5mm with hood. Triathlon rules: wetsuit legal below 20C for age groupers.

Core Tools

Distance covered in 12 minutes (meters)

🏅 Sports Note: These calculators provide estimates based on population data and validated formulas. Individual results vary by physiology, training level, and testing conditions. Consult a qualified coach or sports scientist for personalized guidance.

How to Use

Enter the values for the scenario you are assessing. Match wetsuit thickness to water temperature. Above 22C: shorty 2mm; 18-22C: 3mm full suit; 13-18C: 4/3mm; 10-13C: 5/4mm; below 10C: 6/5mm with hood. Triathlon rules: wetsuit legal below 20C for age groupers. Use the wetsuit temperature guide result to inform your calculation.

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Frequently Asked Questions

At what water temperature is a wetsuit mandatory in triathlon?

How does wetsuit buoyancy affect triathlon swim splits?