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21.957, -159.347 · Kauai, Hawaii · legal zone: open (check bag & size limits)
| Window | Viz | Score | Energy | Swell | Wind | Tide | Water | Why |
|---|---|---|---|---|---|---|---|---|
| Dawn 06:00 | 1m conf Low | ✕ | 683 kJ | 3.5m 3.4 / 3.4 / 3.9 9s | 26 km/h ↓ | 1.5m falling | 24° | too big / strong — don't go · energy too high — not worth it |
| Morning 09:00 | 1m conf Low | ✕ | 830 kJ | 3.9m 3.7 / 3.7 / 4.3 9s | 31 km/h ↓ | 0.5m falling | 24° | too big / strong — don't go · energy too high — not worth it |
| Midday 12:00 | 1m conf Low | ✕ | 1053 kJ | 4.3m 4.0 / 4.2 / 4.7 10s | 35 km/h ↓ | 0.7m rising | 26° | too big / strong — don't go · energy too high — not worth it |
| Arvo 15:00 | 1m conf Low | ✕ | 1683 kJ | 5.3m 4.8 / 5.3 / 5.7 10s | 39 km/h ↓ | 1.6m rising | 25° | too big / strong — don't go · energy too high — not worth it |
| Dusk 18:00 | 1m conf Low | ✕ | 2647 kJ | 6.4m 6.0 / 6.3 / 6.9 11s | 51 km/h ↓ | 1.6m falling | 25° | too big / strong — don't go · energy too high — not worth it · strong wind |
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 Hawaiʻi Division of Aquatic Resources (DAR)
🔱 Scuba spearfishing is BANNED in the West Hawaiʻi area (Big Island west coast) and at Kīpahulu (Maui). Never spear crustaceans, turtles or marine mammals.