Volcom Pipe Pro
There are no automatic weather stations on the North Shore (NOAA have four stations on Oahu but they're mainly on the southern and central parts of the island).
You can get current wind barb plots here - with one station reasonably close to Sunset (it's apparently on site at the Kahuku Military Training Area) but there's no archive info available.
Oahu seems to be under the influence of a mild S'ly right now but the latest data from KTAH is E/NE.
How do you get wind obs history for the north shore? Where's that windswell chop coming from?