Black Fly Season in the Adirondacks

Black fly season is a fact of spring in the Adirondacks, typically lasting from mid-May through early July. But it doesn’t have to keep you indoors. A little preparation—from what you wear to when you head outside—can make hiking, paddling, camping, and other outdoor adventures much more comfortable.

When is black fly season in the Adirondacks?

Black fly season in the Adirondacks typically runs from mid-May through early July, with peak activity often occurring from late May through June. Black flies tend to be most active during the day, especially on warm, humid days and in the morning and evening. Activity usually decreases as temperatures rise and the season progresses.

How to Survive Black Fly Season

Black flies are a natural part of spring in the Adirondacks, but a few simple precautions can make a big difference. Plan ahead, dress appropriately, and pack insect repellent so you can spend less time swatting and more time enjoying the outdoors.

Tips and Tricks to Protect Yourself from Adirondack Biting Flies

Wear a head net or a hat with netting around it that covers your neck
Wear and bring bug repellent spray when being active outdoors during Adirondack black fly season. If you use a product with DEET, apply it to your clothes versus directly on your skin.
Wear long sleeves and long pants
Wear lighter colored clothes
Avoid wearing perfumes
Avoid being outside when Adirondack biting flies are most active