Heavy Air vs. Light Air - Wingfoil Weather

Not All Knots Are Equal

You might own a 5m wing that works perfectly in 15 knots during summer. However, in winter, that same wing in 15 knots might feel uncontrollable. The wind speed is the same, but the "punch" is different.

## The Density Factor

Cold air is dense. The molecules are packed tightly together. Warm air is sparse. The molecules are spread out.

When cold wind hits your wing, more molecules strike the fabric every second. This transfers more energy.

## The Temperature Adjustment

As a general rule, cold air (winter) creates about 10% to 15% more power than warm air (summer) at the same speed.

If you travel to a tropical location, you often need a bigger wing than you use at home. If you ride in freezing temperatures, rig down.

Particle Density Comparison: Summer (Warm Air) Fewer, widely spaced molecules = Less Power Winter (Cold Air) Many, tightly packed molecules = More Power ## Summary

Check the temperature, not just the wind speed. If it is cold, expect the wind to feel stronger than the number on the forecast.