PHZ100-210215-
307 AM HST Tue Oct 20 2026
.Synopsis for Hawaiian coastal waters...
High pressure centered far north of Hawaii will maintain fresh to
strong trade winds for the next few days. Trades will steadily
decrease to gentle speeds early Wednesday morning through Friday
as the high weakens and is displaced eastward by an approaching
low far northwest of the islands. Trades could then turn more
northeasterly this weekend.
$$
PHZ122-210215- Big Island Windward Waters- 307 AM HST Tue Oct 20 2026 TODAY East northeast winds 20 to 25 knots. Seas 6 to 7 feet. Wave Detail: East northeast 6 feet at 7 seconds. Scattered showers. TONIGHT East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. WEDNESDAY East winds to 15 knots. Seas to 6 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. WEDNESDAY NIGHT East winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. THURSDAY East winds 10 to 15 knots. Seas to 5 feet. Wave Detail: East northeast 4 feet at 7 seconds. Isolated showers. THURSDAY NIGHT East winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: East 4 feet at 13 seconds and northeast 3 feet at 8 seconds. Isolated showers. FRIDAY East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 12 seconds, northeast 3 feet at 12 seconds and south southwest 3 feet at 14 seconds. Isolated showers in the morning. Scattered showers. SATURDAY Northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: North 4 feet at 12 seconds, south southwest 4 feet at 13 seconds and east 3 feet at 7 seconds. Scattered showers. $$
PHZ122-210215- Big Island Windward Waters- 307 AM HST Tue Oct 20 2026 TODAY East northeast winds 20 to 25 knots. Seas 6 to 7 feet. Wave Detail: East northeast 6 feet at 7 seconds. Scattered showers. TONIGHT East northeast winds 15 to 20 knots. Seas 6 to 7 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. WEDNESDAY East winds to 15 knots. Seas to 6 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. WEDNESDAY NIGHT East winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: East northeast 5 feet at 7 seconds. Scattered showers. THURSDAY East winds 10 to 15 knots. Seas to 5 feet. Wave Detail: East northeast 4 feet at 7 seconds. Isolated showers. THURSDAY NIGHT East winds 10 to 15 knots. Seas 5 to 6 feet. Wave Detail: East 4 feet at 13 seconds and northeast 3 feet at 8 seconds. Isolated showers. FRIDAY East northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: East 4 feet at 12 seconds, northeast 3 feet at 12 seconds and south southwest 3 feet at 14 seconds. Isolated showers in the morning. Scattered showers. SATURDAY Northeast winds 10 to 15 knots. Seas 4 to 6 feet. Wave Detail: North 4 feet at 12 seconds, south southwest 4 feet at 13 seconds and east 3 feet at 7 seconds. Scattered showers. $$