There's always a chance of salmon coming in close to shore. One morning mid summer I encountered salmon thrashing through the needle fish down at Esquimalt lagoon beach. Probably not a common occurrence worth targeting but it can happen. I was targeting trout at that time and only had my 3wt fly rod. Occasional a salmon gets hooked in the Victoria harbour but again not with enough regularity to make it worthwhile, except perhaps during the fall spawning run.
It's better for Salmon fishing of the points East of Victoria. The Golf Links, 10 mile point etc.