645
FZHW50 PHFO 231318
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
317 AM HST Sat Aug 23 2025

Hawaiian coastal waters within 40 nautical miles including the
Hawaiian Islands Humpback Whale National Marine Sanctuary.

PHZ100-240200-
317 AM HST Sat Aug 23 2025

.Synopsis for Hawaiian coastal waters...
 A high pressure ridge north of the Hawaiian Islands will
continue to produce fresh to locally strong trade winds through
the first half of next week.

$$

PHZ110-240200-
Kauai Northwest Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 7 seconds.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers after
midnight.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers in the
morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 7 seconds. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds. Isolated showers in the
afternoon.
.MONDAY NIGHT...East winds to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 4 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds to 15 knots. Seas 3 to 4 feet. Wave Detail:
East 4 feet at 7 seconds. Isolated showers.
.WEDNESDAY...East northeast winds to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 7 seconds. Isolated showers.

$$

PHZ111-240200-
Kauai Windward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 10 to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds.
.TONIGHT...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers.
.SUNDAY...East southeast winds to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers in
the morning.
.SUNDAY NIGHT...East southeast winds 10 to 15 knots. Seas to
5 feet. Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers after midnight.
.MONDAY...East winds 10 to 15 knots. Seas to 5 feet. Wave Detail:
East 5 feet at 7 seconds. Isolated showers.
.MONDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers. Scattered
showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers.

$$

PHZ112-240200-
Kauai Leeward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 6 seconds.
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 6 seconds. Isolated showers.
.SUNDAY...East winds 10 to 15 knots, rising to 15 to 20 knots in
the afternoon. Seas 3 to 4 feet. Wave Detail: East southeast
4 feet at 7 seconds. Isolated showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers in
the morning. Isolated showers through the day.
.WEDNESDAY...East northeast winds 10 to 15 knots. In the
Kaulakahi Channel, east northeast winds 7 to 10 knots, becoming
10 to 15 knots. Seas 4 to 5 feet. Wave Detail: East southeast
5 feet at 6 seconds. Isolated showers in the morning. Isolated
showers through the day.

$$

PHZ113-240200-
Kauai Channel-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds.
.TONIGHT...East winds 15 to 20 knots, easing to 10 to 15 knots
after midnight. Seas 4 to 5 feet. Wave Detail: East 5 feet at
6 seconds. Isolated showers.
.SUNDAY...East winds 10 to 15 knots, rising to 15 to 20 knots in
the afternoon. Seas 4 to 5 feet. Wave Detail: East southeast
5 feet at 7 seconds. Isolated showers in the morning.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers.
.MONDAY...East northeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 4 feet at 7 seconds. Isolated showers
in the afternoon.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 4 feet at 7 seconds. Isolated showers.
.TUESDAY...East northeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East 4 feet at 6 seconds. Isolated showers in the
morning. Isolated showers after midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 5 feet at 6 seconds and south 3 feet at
15 seconds. Isolated showers in the morning. Isolated showers
through the day.

$$

PHZ114-240200-
Oahu Windward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers this
morning.
.TONIGHT...East winds 15 to 20 knots. Seas to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers
after midnight.
.SUNDAY...East winds 15 to 20 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers in the
morning.
.SUNDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers
after midnight.
.MONDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers.
.MONDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East 5 feet at 7 seconds. Isolated showers in the
evening, then scattered showers after midnight.
.TUESDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers in the
morning. Isolated showers through the day.
.WEDNESDAY...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 6 seconds. Isolated showers in
the morning. Isolated showers through the day.

$$

PHZ115-240200-
Oahu Leeward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots, easing to 10 to 15 knots this
afternoon. Seas to 4 feet. Wave Detail: East southeast 4 feet at
6 seconds.
.TONIGHT...East winds 10 to 15 knots. Seas to 4 feet. Wave
Detail: East southeast 4 feet at 6 seconds. Isolated showers
after midnight.
.SUNDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers in
the morning.
.SUNDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 4 feet at 7 seconds.
.MONDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East southeast 4 feet at 7 seconds.
.MONDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers.
.TUESDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 6 seconds.
.WEDNESDAY...East northeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East southeast 5 feet at 6 seconds and south
southwest 3 feet at 15 seconds. Isolated showers after midnight.

$$

PHZ116-240200-
Kaiwi Channel-
318 AM HST Sat Aug 23 2025

.TODAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East 5 feet at 6 seconds.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East 5 feet at 6 seconds.
.MONDAY...East northeast winds to 15 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers in the
afternoon.
.MONDAY NIGHT...East winds to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 3 to 5 feet.
Wave Detail: East 5 feet at 6 seconds. Isolated showers after
midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 5 feet at 6 seconds and south southwest
3 feet at 15 seconds. Isolated showers in the morning. Isolated
showers after midnight.

$$

PHZ117-240200-
Maui County Windward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers this
afternoon.
.TONIGHT...East southeast winds 15 to 20 knots. Seas to 5 feet.
Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers.
.SUNDAY...East winds 15 to 20 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers.
.SUNDAY NIGHT...East southeast winds to 15 knots. Seas to 5 feet.
Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers.
.MONDAY...East winds 15 to 20 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 7 seconds. Isolated showers.
.MONDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 5 feet at 7 seconds. Isolated showers.
.TUESDAY...East winds to 15 knots. Seas to 5 feet. Wave Detail:
East southeast 5 feet at 6 seconds. Isolated showers in the
morning. Isolated showers through the day.
.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 6 seconds. Isolated showers.

$$

PHZ118-240200-
Maui County Leeward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 4 feet at 6 seconds.
.TONIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 6 seconds.
.SUNDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds.
.MONDAY...East northeast winds 7 to 10 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 6 seconds. Isolated showers
in the afternoon.
.MONDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 4 feet at 6 seconds. Isolated
showers.
.TUESDAY...Northeast winds 7 to 10 knots, veering to east
northeast 10 to 15 knots. Seas 3 to 4 feet. Wave Detail: East
southeast 4 feet at 6 seconds. Isolated showers after midnight.
.WEDNESDAY...East northeast winds 10 to 15 knots, becoming 7 to
10 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
southeast 4 feet at 6 seconds and south southwest 3 feet at
16 seconds. Isolated showers after midnight.

$$

PHZ119-240200-
Maalaea Bay-
318 AM HST Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TODAY...North winds to 25 knots. Seas to 2 feet or less.
.TONIGHT...North winds 20 to 25 knots. Seas to 2 feet or less.
.SUNDAY...North winds to 25 knots. Seas to 2 feet or less. Wave
Detail: Northeast 2 feet at 3 seconds.
.SUNDAY NIGHT...North winds to 20 knots. Seas to 2 feet or less.
Wave Detail: Northeast 2 feet at 3 seconds.
.MONDAY...North winds to 20 knots. Seas to 2 feet or less.
.MONDAY NIGHT...North winds to 20 knots. Seas to 2 feet or less.
.TUESDAY...North winds to 20 knots. Seas to 2 feet or less.
.WEDNESDAY...North winds to 20 knots. Seas to 2 feet or less.

$$

PHZ120-240200-
Pailolo Channel-
318 AM HST Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TODAY...East winds 20 to 25 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 4 seconds.
.TONIGHT...East winds 20 to 25 knots. Seas 3 to 5 feet. Wave
Detail: East 4 feet at 4 seconds.
.SUNDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.
Wave Detail: East 4 feet at 4 seconds.
.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds.
.MONDAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers in the
afternoon.
.MONDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers in the
morning. Isolated showers through the day.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East 4 feet at 4 seconds. Isolated showers
in the morning. Isolated showers through the day.

$$

PHZ121-240200-
Alenuihaha Channel-
318 AM HST Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TODAY...East northeast winds 20 to 25 knots. Seas 4 to 6 feet.
Wave Detail: East 5 feet at 6 seconds.
.TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers after
midnight.
.SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers in the
morning.
.SUNDAY NIGHT...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave
Detail: East 6 feet at 6 seconds. Isolated showers after
midnight.
.MONDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers in the
afternoon.
.MONDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 6 feet at 6 seconds. Isolated showers in the
morning. Isolated showers through the day.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East 6 feet at 6 seconds and south southwest
3 feet at 16 seconds. Isolated showers in the morning. Isolated
showers through the day.

$$

PHZ122-240200-
Big Island Windward Waters-
318 AM HST Sat Aug 23 2025

.TODAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers this
morning.
.TONIGHT...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers.
.SUNDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers.
.SUNDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 5 feet at 8 seconds. Isolated showers in
the evening, then scattered showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 7 seconds. Isolated showers.
Scattered showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 4 feet at 7 seconds and south southwest
3 feet at 16 seconds. Scattered showers in the morning. Isolated
showers through the night, then scattered showers after midnight.

$$

PHZ123-240200-
Big Island Leeward Waters-
318 AM HST Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TODAY...West winds 7 to 10 knots west of the Big Island...East
to 25 knots near South Point. Seas 4 to 6 feet. Wave Detail: East
4 feet at 5 seconds.
.TONIGHT...Northwest winds 7 to 10 knots west of the Big Island...
 East to 25 knots near South Point. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers.
.SUNDAY...West of the Big Island, winds variable less than
10 knots, becoming west northwest 10 to 15 knots in the
afternoon. Near South Point, east winds to 25 knots. Seas 4 to
6 feet. Wave Detail: East 5 feet at 6 seconds. Isolated showers
in the morning.
.SUNDAY NIGHT...West of the Big Island, north northwest winds
7 to 10 knots. Near South Point, east winds 15 to 20 knots,
backing to east northeast after midnight. Seas 4 to 6 feet. Wave
Detail: East 5 feet at 6 seconds. Isolated showers after
midnight.
.MONDAY...Winds variable less than 10 knots west of the Big
Island...East 15 to 20 knots near South Point. Seas 4 to 6 feet.
Wave Detail: East southeast 5 feet at 5 seconds. Isolated
showers.
.MONDAY NIGHT...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds 15 to 20 knots, backing to
east northeast after midnight. Seas 3 to 5 feet. Wave Detail:
East 5 feet at 5 seconds. Isolated showers in the evening, then
scattered showers after midnight.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...East 15 to 20 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 5 seconds. Isolated
showers.
.WEDNESDAY...West of the Big Island, winds variable less than
10 knots, becoming west northwest 7 to 10 knots. Near South
Point, east winds 15 to 20 knots. Seas 4 to 6 feet. Wave Detail:
East 5 feet at 6 seconds and south southwest 3 feet at
16 seconds. Isolated showers.

$$

PHZ124-240200-
Big Island Southeast Waters-
318 AM HST Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

.TODAY...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.
Wave Detail: East 6 feet at 8 seconds. Isolated showers this
morning.
.TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.
Wave Detail: East southeast 6 feet at 8 seconds. Isolated
showers.
.SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.
Wave Detail: East southeast 6 feet at 8 seconds. Isolated showers
in the morning.
.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to
6 feet. Wave Detail: East southeast 6 feet at 8 seconds. Isolated
showers.
.MONDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.
Wave Detail: East southeast 6 feet at 8 seconds. Isolated
showers.
.MONDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
6 feet. Wave Detail: East southeast 5 feet at 8 seconds. Isolated
showers in the evening, then scattered showers after midnight.
.TUESDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East southeast 5 feet at 7 seconds. Isolated
showers. Scattered showers after midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 5 to
7 feet. Wave Detail: East southeast 5 feet at 6 seconds and south
southwest 3 feet at 16 seconds. Isolated showers. Scattered
showers after midnight.

$$