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Sun Smart Training Tips For Ironman Triathletes

Sun Smart Training Tips For Ironman Triathletes

7th Oct 2026

Ironman training requires a significant investment of time, and many athletes will spend hours training outdoors in direct sunlight. Managing your sun exposure should be part of your overall training strategy—not something you think about only after getting burned.

Whenever possible, minimize the amount of training you do during the strongest midday sun, particularly between 10:00 a.m. and 4:00 p.m. Early-morning and late-afternoon sessions can reduce your exposure while also making training more comfortable.

Training Times: Minimize Midday Sun Exposure

Scheduling every workout around the sun isn't always practical, especially when work and family commitments are involved. When you have to train during the middle of the day, take a proactive approach to protecting your skin.

1. Wear Sun-Protective Clothing

Choose lightweight, breathable clothing designed to provide UV protection while allowing heat and sweat to escape. A long-sleeve cycling or running top can provide considerably more coverage than relying entirely on sunscreen.

2. Protect Your Head and Eyes

A broad-brimmed hat or appropriate athletic sun hat can provide valuable protection for your face, ears and neck. Quality sunglasses with good UV protection will help protect your eyes while reducing glare during cycling and running.

3. Apply Sunscreen Before Training

Don't wait until you are standing in the driveway with your bike ready to go. Apply a broad-spectrum, water-resistant sunscreen before heading outside. For extended outdoor training, an SPF 30 or higher is a practical choice.

Give the sunscreen time to absorb before beginning your workout and follow the product's instructions for reapplication.

4. Protect the Easily Forgotten Areas

Athletes tend to remember their face and arms but overlook the areas that receive repeated sun exposure during long training sessions.

Pay particular attention to:

  • The back of your neck
  • The tops and backs of your ears
  • Your nose
  • Your cheeks
  • The backs of your hands
  • Your forearms
  • Your shoulders
  • Behind your knees
  • Areas exposed when your clothing moves during training

Your lips need protection as well. Use a lip balm with SPF and remember to reapply it throughout the workout.

5. Reapply During Long Workouts

Ironman training sessions can last several hours, and sunscreen doesn't remain fully effective indefinitely. Sweat, water, towels and clothing can all remove sunscreen.

If you're doing a long ride, run or outdoor brick workout, carry sunscreen with you and reapply according to the product directions—especially after swimming, heavy sweating or toweling off.

Sun Protection Should Become a Training Habit

The goal should be simple: make getting sunburned unacceptable.

Just as you wouldn't begin a long ride without thinking about hydration or nutrition, sun protection should become part of your normal training routine.

Keep sunscreen and SPF lip protection in your training bag, car, transition gear or cycling kit so you always have them available. Make applying sunscreen part of your pre-workout routine rather than something you remember only when the sun is already beating down.

Hydration is equally important during long, hot training sessions. Carry adequate fluids in bottles or a hydration pack and sip regularly rather than waiting until you become thirsty.

The best Ironman training strategy is one that allows you to train consistently for months and years. Protecting your skin from excessive UV exposure is a small investment that can help make that long-term approach possible.

Train hard. Train smart. And don't let a sunburn become part of your training plan.