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37.113, -122.307 · San Mateo, California · legal zone: ⛔ Año Nuevo State Marine Reserve — no-take — no spearfishing
| Window | Viz | Score | Energy | Swell | Wind | Tide | Water | Why |
|---|---|---|---|---|---|---|---|---|
| Dawn 06:00 | 1m conf High | ✕ | 258 kJ | 2.0m 11s | 17 km/h ↓ | 0.9m falling | 23° | too big / strong — don't go · energy too high — not worth it |
| Morning 09:00 | 1m conf High | ✕ | 270 kJ | 2.1m 10s | 21 km/h ↓ | 0.4m rising | 23° | too big / strong — don't go · energy too high — not worth it |
| Midday 12:00 | 1m conf High | ✕ | 283 kJ | 2.2m 10s | 18 km/h ↓ | 1.3m rising | 17° | too big / strong — don't go · energy too high — not worth it |
| Arvo 15:00 | 1m conf High | ✕ | 294 kJ | 2.2m 10s | 13 km/h ↓ | 1.8m falling | 14° | too big / strong — don't go · energy too high — not worth it |
| Dusk 18:00 | 1m conf High | ✕ | 305 kJ | 2.2m 11s | 11 km/h ↓ | 1.0m falling | 14° | too big / strong — don't go · energy too high — not worth it |
Swell column shows the 3-model mean; the amber row below it is ECMWF / Météo-France / GWAM separately (shown only when they disagree).
Common targets here. Size & bag limits are indicative — always verify current rules with California Dept. of Fish & Wildlife (CDFW)
🔱 Scuba spearfishing is legal, and spear divers are exempt from rockfish season & depth closures. Lobster & abalone may NOT be speared.