What are the best months to visit Lake Louise for swimming?

To experience the colour-saturated water, plan to arrive at Lake Louise before the lake ices over, any time between May and late October. June, July, and August are the best months for swimming, but the glacier-fed lake is chilly all year-round. December through March bring freezing temperatures, when winter activities are in full swing. The iconic lake generally draws big crowds—find a bit more room in the off-season, which includes late March, April, and November. Lake Louise is a must-visit destination for campers.