Midges like very low wind, humidity and hate bright light. So a mild wind, dry air or sunlight will drive them away.
Wild camping high up in the mountains also decreases the probability of midges. But if conditions are right you can get midges at any altitude in Scotland.
We do get some days when nature makes it perfect for the midge. That is why we give FREE Smidge to all our clients who book May to September, the most likely time for midges.