About.

Harper is a minimal wave forecast. No accounts, no ads, no runtime API. The goal is simple: the numbers that matter, clearly, and nothing else.

Our story

I started Harper during the Peniche Pro, out of the same small frustration most surfers know — free forecast tools feel overloaded with dials and color bars that are harder to read than the ocean they describe. I wanted something that gave me height, period, direction, and wind at a glance, and got out of the way.

Data is from NOAA’s public-domain GFS WaveWatch III model. This site is regenerated once per NOAA cycle — that’s the only thing that has to happen for the forecast to update.

Harper is free and will stay free. Surfing has always been about sharing — waves, spots, conditions — and a forecast built from public-domain data should travel the same way.