Depends on you definition of "few"
Most of the time it is 3-5 days, but the swell are usually driven by systems coming off the US...as you can see, will be getting bigger in the next "few" days.
I have a curiosity, when the "every where" gets pretty high north surf, the entire area can turn this AMAZING light blue, bright electric color that is truly amazing to sail in. almost like a "hallucination"
why? aeration? Sediment stir? All I know it is wicked awesome.
