Nymph Tick Season Is Here: Why June and July Matter

Summer is here—and so are the tiniest ticks.

If you spend time hiking, camping, gardening, at the cottage, or sending your kids to camp, there's one tick you should know about: the nymph tick.

Nymphs are immature blacklegged ticks that are active throughout the summer months, with activity peaking in June and July. Although small, they are responsible for many tick bites because they are so difficult to spot.

In fact, data from Geneticks Canada's Tick Testing Database shows that nearly 70% of all nymph tick submissions between 2018 and 2024 occurred during June and July.

Why Are Nymph Ticks a Concern?

Nymph ticks are about the size of a poppy seed. Their tiny size allows them to attach and feed without being noticed, especially on children and active outdoor enthusiasts.

Unlike adult ticks, which are easier to see during a tick check, nymphs can hide in clothing folds, hairlines, behind knees, under arms, and other hard-to-see areas.

Enjoy the Outdoors With Confidence

The goal isn't to fear the outdoors—it is to enjoy it safely.

A few simple precautions can help reduce your risk of tick bites:

• Wear protective clothing when spending time in grassy, brushy, or wooded areas.
• Apply tick repellent according to label directions.
• Perform a full-body tick check after spending time outdoors. 
• Carry a tick removal kit so you're prepared if you find a tick. Keeping a tick removal kit on hand can help you safely remove and store a tick if one is found

The Bottom Line

June and July are the peak months for nymph tick activity in Canada. Because these ticks are so small and often go unnoticed, prevention and regular tick checks are especially important during the summer months.

With the right habits and the right gear, you can spend more time enjoying the outdoors and less time worrying about ticks. 

If you find a tick and would like to learn more about tick testing options in Canada, visit our Tick Testing Resource Guide

Data Source: Geneticks Canada Tick Testing Database (2018–2024). Percentages reflect monthly submissions of nymph and adult ticks received for testing.