During July and August, Vancouver is substantially drier and sunnier than Toronto. In fact, it might be the driest and sunniest place in Canada. In July 2013, for example, Vancouver
did not experience a single drop of rain and had over 411 hours of sunshine. That was a record, but it was not too far off from a typical good summer. And Vancouver's average maximum temperature for July and August is just 3 or 4 degrees cooler than Toronto.
Toronto Weather Data
Vancouver Weather Data
False Creek South Seawall:
Photo by Steve Chou Photos:
https://www.flickr.com/photos/stchou/15110031131/in/set-72157646791161560