Most surf ratings flatten a complicated day into a single number or a row of stars. The trouble is that surf quality is five moving parts, and one number has to guess which of them to listen to. GhostFingers grades surf in six named tiers instead, each one tied to a real decision.
The six tiers
From lowest to highest:
- Flat. Nothing to ride. Stay home.
- Marginal. There is something in the water, but it is weak or messy. Only if
you are desperate.
- Worth a look. Borderline. It could be worth checking in person, depending on
the spot and the tide.
- Fun. A genuinely good session. Clean enough and big enough to be worth the
drive.
- Cooking. Well above average. The kind of day you rearrange plans for.
- ITS ON! The top of the scale. Rare, and worth dropping everything.
Six steps, not ten, because each one maps to a clear call: skip it, maybe check it, or go.
How the grade is built
The tier is not a guess. It comes from the same five numbers behind every surf call: swell height, period, direction, tide, and wind. Those get tuned to each specific break, because the swell that lights up one spot does nothing at the next. The same conditions can read Fun at one break and Flat at another a few miles away, and the grade reflects that.
Why named tiers beat a number
A 7-out-of-10 tells you almost nothing on its own. Seven for a beginner spot and seven for a heavy reef mean different days. A named tier tells you what to do: "Worth a look" and "Cooking" are decisions, not scores. And because every factor behind the grade stays visible, you can see why a day landed where it did instead of trusting a number on faith.
How to use it
Read the tier for the quick call, then read the five numbers underneath it the way the how to read a surf forecast guide lays out, so you know not just how good a day is but why. See the grade for every break across the California spot directory.