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20.128, -155.586 · Big Island, Hawaii · legal zone: open (check bag & size limits)
| Window | Viz | Score | Energy | Swell | Wind | Tide | Water | Why |
|---|---|---|---|---|---|---|---|---|
| Dawn 06:00 | 1m conf Low | ✕ | 282 kJ | 2.2m 9s | 7 km/h ↓ | 1.8m rising | 26° | too big / strong — don't go · energy too high — not worth it |
| Morning 09:00 | 1m conf Low | ✕ | 290 kJ | 2.2m 10s | 11 km/h ↓ | 1.1m falling | 27° | too big / strong — don't go · energy too high — not worth it |
| Midday 12:00 | 1m conf Low | ✕ | 298 kJ | 2.3m 10s | 5 km/h ↓ | 0.4m falling | 26° | too big / strong — don't go · energy too high — not worth it |
| Arvo 15:00 | 1m conf Low | ✕ | 307 kJ | 2.3m 10s | 5 km/h ↓ | 1.0m rising | 25° | too big / strong — don't go · energy too high — not worth it |
| Dusk 18:00 | 1m conf Low | ✕ | 321 kJ | 2.4m 10s | 6 km/h ↓ | 1.8m rising | 25° | 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 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.