The two most common species on Islay are the Culicoides Obsoletus and Culicoides Impunctatus, also known as Highland Midge, both 1.6 mm long. ... Midges usually appear in the evening and early morning when there is only a little or no wind.

Where in Scotland are there no midges?

In the Inverness and Loch Ness area, most places by the coast and along Loch Ness are pretty much midge free, but in other places like Glen Affric you are more likely to encounter them.

What is the best time to avoid the midges in Scotland?

Come between late September and late May

If you arrive in Scotland, before the weather has warmed up too much you are unlikely to see many midges. Also if you visit in May or early September, you are also likely to encounter the best weather conditions Scotland has to offer.