Summer is an ideal time for visiting Johnston Canyon and Banff National Park. During these months, the warmer weather makes for great hiking conditions and ensures trails throughout the park are clear of snow.
That being said, the Johnston Canyon Ink Pots hike also attracts visitors in the colder months, making it a popular winter hike.
The suspended nature of the path and maintenance efforts means this area can also be enjoyed during the winter.
Since this hike can be enjoyed year round, your timing should be dictated by what other activities you hope to enjoy in the park during your stay.
Summer is great for hiking while the winter months are ideal for skiing.
September, specifically, is a great month for attempting the Johnston Canyon Ink Pots hike. This is the time frame for when we visited Banff.
During this time you'll still enjoy warm temperatures, but by September they should have cooled a bit off the summer highs.
Additionally, the peak summer season crowds will start to fade by Labor Day as kids return to school and most people have used up their summer vacation.
Not only does this mean fewer crowds, but it also means prices for rental cars and hotels have usually started to moderate.