When are the black flies & mosquitoes at their worst?
At the cottage & on the beach, we don’t tend to get black flies. The breeze off the water tends to keep them in the woods & away from the camp. There is the occasional one, but they are not in swarms. I usually get bit once or twice a year over a 6 week period in the outdoors. They are in the woods. If you walk into the woods, they will soon find you. With repellant applied, I’ve only been really bothered by them sometime about 1989. I know it was warm when they were bad, I think sometime in July or August. So I’m not really sure the answer to that question. My guess is May/June is the worst. Mosquitoes are ever present at dusk and 2 hrs. after the sun goes down.