Halifax isn't a particularly windy city with other cities such as Calgary, Hamilton, Toronto, Moncton and others having, on average, more days of strong wind (52 kph or above) annually. But fog, that's a whole 'nother story. What's obvious is that the closer you are to the open ocean the more foggier and cooler it becomes. This is especially true in spring and early summer. This pic illustrates one of many days each year where it'd be perhaps 10 degrees warmer at OBV than it would be in south end Halifax.
Foggy South End by
A.J. Forsythe, on Flickr