Taking advantage of the prevailing westerlies on the west end of the Strait of Juan de Fuca
If you are traveling a ways to get to this area, you may not have the luxury of being able to go whenever you know the conditions are best. But locals tells us that good conditions often are sustained for a week or more, so if you can arrange for a visit with a week's advance notice (or less) or so you should be able to look at long range forecasts and see when it looks like sustained favorable conditions are likely coming that will merit you traveling and spending a number of days downwinding here.
There is also more specific weather information below in the paddle run descriptions
Greg Miller: “We have many good days / evenings when the onshore westerly push builds down Juan de Fuca Strait. Our favourite run is the Sheringham run, from near French Beach park / Sheringham Lighthouse to Whiffin spit in Sooke. This run often has ocean swell and wind waves“
Baynes Channel Surfski