Hawaiian Coastal Waters Forecast

Coastal Waters Forecast   Issued: 10/17/2026 11:20:00 PM UTC

                        

906

FZHW50 PHFO 171320

CWFHFO



Coastal Waters Forecast

National Weather Service Honolulu HI

320 AM HST Sat Oct 17 2026



Hawaiian coastal waters within 40 nautical miles including the

Hawaiian Islands Humpback Whale National Marine Sanctuary.



PHZ100-180230-

320 AM HST Sat Oct 17 2026



.Synopsis for Hawaiian coastal waters...

High pressure north of the islands maintains fresh to strong

trades through Tuesday.



$$



PHZ110-180230-

Kauai Northwest Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds to 20 knots. Seas 6 to 8 feet. Wave

Detail: East 6 feet at 7 seconds and north 5 feet at 10 seconds.

Scattered showers.

.TONIGHT...East northeast winds to 20 knots. Seas to 7 feet. Wave

Detail: East 6 feet at 7 seconds and north 3 feet at 14 seconds.

Scattered showers.

.SUNDAY...East northeast winds to 20 knots. Seas 6 to 7 feet.

Wave Detail: East 6 feet at 7 seconds and north 3 feet at

13 seconds. Scattered showers.

.SUNDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers.

.MONDAY...East winds to 20 knots. Seas 6 to 7 feet. Wave Detail:

East 7 feet at 8 seconds. Scattered showers.

.MONDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers.

.TUESDAY...East winds 20 to 25 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers in the

morning, then isolated showers through the night. Scattered

showers after midnight.



$$



PHZ111-180230-

Kauai Windward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds 15 to 20 knots. Seas 7 to 8 feet.

Wave Detail: East 6 feet at 7 seconds and north 5 feet at

11 seconds. Scattered showers.

.TONIGHT...East northeast winds to 20 knots. Seas 7 to 8 feet.

Wave Detail: East 7 feet at 7 seconds and north 3 feet at

14 seconds. Scattered showers.

.SUNDAY...East winds to 20 knots. Seas 6 to 8 feet. Wave Detail:

East 7 feet at 7 seconds and north 3 feet at 13 seconds.

Scattered showers.

.SUNDAY NIGHT...East winds to 20 knots. Seas to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers.

.MONDAY...East winds to 20 knots. Seas to 7 feet. Wave Detail:

East 7 feet at 8 seconds. Scattered showers.

.MONDAY NIGHT...East winds to 20 knots. Seas to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers in the

evening, then numerous showers after midnight.

.TUESDAY...East winds to 20 knots. Seas to 7 feet. Wave Detail:

East 7 feet at 7 seconds. Scattered showers, then numerous

showers after midnight.

.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 8 seconds. Scattered showers in the

morning, then isolated showers through the night. Scattered

showers after midnight.



$$



PHZ112-180230-

Kauai Leeward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East southeast 6 feet at 7 seconds and north northwest

4 feet at 10 seconds. Isolated showers.

.TONIGHT...East northeast winds to 20 knots...East northeast

15 to 20 knots in the Kaulakahi Channel. Seas 5 to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.SUNDAY...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 7 feet at 7 seconds. Scattered showers in the

morning. Isolated showers in the afternoon.

.SUNDAY NIGHT...East northeast winds to 20 knots. Seas 5 to

7 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.MONDAY...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.MONDAY NIGHT...East winds to 20 knots. Seas 5 to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.TUESDAY...East winds 20 to 25 knots. Seas 5 to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to

6 feet. Wave Detail: East 6 feet at 7 seconds. Isolated showers.



$$



PHZ113-180230-

Kauai Channel-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 6 feet at 7 seconds and north 4 feet at 11 seconds.

Isolated showers.

.TONIGHT...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Scattered

showers.

.SUNDAY...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Scattered

showers, mainly in the morning.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East northeast 7 feet at 7 seconds.

Scattered showers.

.MONDAY...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Scattered

showers.

.MONDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East northeast 7 feet at 7 seconds.

Scattered showers.

.TUESDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Scattered

showers.

.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 5 to

6 feet. Wave Detail: East northeast 6 feet at 7 seconds. Isolated

showers.



$$



PHZ114-180230-

Oahu Windward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds to 20 knots. Seas 7 to 8 feet. Wave

Detail: East 6 feet at 7 seconds and north 5 feet at 11 seconds.

Scattered showers.

.TONIGHT...East northeast winds to 20 knots. Seas 7 to 8 feet.

Wave Detail: East 7 feet at 7 seconds and north 3 feet at

14 seconds. Scattered showers.

.SUNDAY...East northeast winds to 20 knots. Seas 7 to 8 feet.

Wave Detail: East 7 feet at 7 seconds and north 3 feet at

13 seconds. Scattered showers.

.SUNDAY NIGHT...East winds 20 to 25 knots. Seas to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.MONDAY...East winds to 20 knots. Seas to 7 feet. Wave Detail:

East 7 feet at 7 seconds. Scattered showers.

.MONDAY NIGHT...East winds to 20 knots. Seas to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.TUESDAY...East winds to 20 knots. Seas 7 to 8 feet. Wave Detail:

East 7 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers in the

morning, then isolated showers through the night. Scattered

showers after midnight.



$$



PHZ115-180230-

Oahu Leeward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 6 feet at 6 seconds and north northwest 4 feet

at 11 seconds.

.TONIGHT...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Isolated

showers.

.SUNDAY...East northeast winds to 20 knots. Seas 5 to 6 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Isolated showers

in the morning.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

6 feet. Wave Detail: East northeast 6 feet at 6 seconds. Isolated

showers.

.MONDAY...East northeast winds to 20 knots. Seas 5 to 6 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Isolated

showers.

.MONDAY NIGHT...East northeast winds to 20 knots. Seas 4 to

6 feet. Wave Detail: East northeast 6 feet at 6 seconds. Isolated

showers after midnight.

.TUESDAY...East northeast winds to 20 knots. Seas 4 to 6 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Isolated showers

through the night. Scattered showers through the day.

.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 4 to

5 feet. Wave Detail: East northeast 5 feet at 6 seconds. Isolated

showers.



$$



PHZ116-180230-

Kaiwi Channel-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...East northeast winds to 20 knots. Seas 5 to 8 feet. Wave

Detail: East northeast 6 feet at 6 seconds and north 5 feet at

11 seconds. Isolated showers.

.TONIGHT...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 6 feet at 6 seconds and north 3 feet

at 12 seconds. Scattered showers.

.SUNDAY...East northeast winds to 20 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 6 feet at 7 seconds. Scattered

showers in the morning. Isolated showers in the afternoon.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East northeast 7 feet at 7 seconds. Isolated

showers in the evening. Scattered showers after midnight.

.MONDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Isolated

showers.

.MONDAY NIGHT...East northeast winds to 20 knots. Seas 5 to

7 feet. Wave Detail: East northeast 7 feet at 7 seconds.

Scattered showers.

.TUESDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East northeast 7 feet at 7 seconds. Scattered

showers.

.WEDNESDAY...East northeast winds to 20 knots, easing to 15 knots

after midnight. Seas 5 to 7 feet. Wave Detail: East northeast

7 feet at 6 seconds. Isolated showers.



$$



PHZ117-180230-

Maui County Windward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds 15 to 20 knots. Seas 6 to 8 feet,

subsiding to 5 to 6 feet this afternoon. Wave Detail: East 6 feet

at 6 seconds and north northwest 5 feet at 11 seconds. Scattered

showers.

.TONIGHT...East winds to 20 knots. Seas 5 to 7 feet. Wave Detail:

East 6 feet at 7 seconds and north 3 feet at 14 seconds.

Scattered showers.

.SUNDAY...East winds to 20 knots. Seas 6 to 7 feet. Wave Detail:

East 6 feet at 7 seconds and north 3 feet at 13 seconds.

Scattered showers.

.SUNDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 7 feet at 7 seconds. Scattered showers.

.MONDAY...East winds to 20 knots. Seas 6 to 7 feet. Wave Detail:

East 7 feet at 7 seconds. Scattered showers.

.MONDAY NIGHT...East winds to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 6 feet at 7 seconds. Scattered showers.

.TUESDAY...East winds to 20 knots. Seas 6 to 7 feet. Wave Detail:

East 7 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 6 feet at 7 seconds. Scattered showers in the

morning, then isolated showers through the night. Scattered

showers after midnight.



$$



PHZ118-180230-

Maui County Leeward Waters-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 6 feet at 6 seconds and north 3 feet at

11 seconds.

.TONIGHT...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.

Wave Detail: East 4 feet at 6 seconds.

.SUNDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.

Wave Detail: East 4 feet at 6 seconds.

.SUNDAY NIGHT...East northeast winds 15 to 20 knots, easing to

10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail:

East 4 feet at 6 seconds.

.MONDAY...East northeast winds 10 to 15 knots, becoming east

15 to 20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail:

East 4 feet at 6 seconds.

.MONDAY NIGHT...East northeast winds 15 to 20 knots, easing to

10 to 15 knots after midnight. Seas 3 to 5 feet. Wave Detail:

East 4 feet at 6 seconds.

.TUESDAY...East northeast winds 10 to 15 knots, rising to 15 to

20 knots in the afternoon and evening, easing to 10 to 15 knots

after midnight. Seas 3 to 5 feet. Wave Detail: East 5 feet at

7 seconds. Isolated showers through the day.

.WEDNESDAY...East northeast winds 10 to 15 knots. Seas 3 to

4 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers

in the morning. Isolated showers through the day.



$$



PHZ119-180230-

Maalaea Bay-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...North northeast winds to 25 knots. Seas to 3 feet this

morning, then to 2 feet or less. Wave Detail: North northeast

3 feet at 4 seconds.

.TONIGHT...North winds to 25 knots. Seas to 2 feet or less. Wave

Detail: North northeast 2 feet at 3 seconds.

.SUNDAY...North northeast winds to 25 knots. Seas to 2 feet or

less. Wave Detail: North northeast 2 feet at 3 seconds.

.SUNDAY NIGHT...North winds to 25 knots. Seas to 2 feet or less.

Wave Detail: North northeast 2 feet at 3 seconds.

.MONDAY...North winds to 25 knots. Seas to 2 feet or less. Wave

Detail: North northeast 2 feet at 3 seconds.

.MONDAY NIGHT...North winds to 25 knots. Seas to 2 feet or less.

Wave Detail: North northeast 2 feet at 3 seconds.

.TUESDAY...North winds to 25 knots. Seas to 2 feet or less. Wave

Detail: North northeast 2 feet at 3 seconds.

.WEDNESDAY...North winds to 25 knots, easing to 20 knots after

midnight. Seas to 2 feet or less. Wave Detail: North northeast

2 feet at 3 seconds.



$$



PHZ120-180230-

Pailolo Channel-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...East northeast winds 20 to 25 knots. Seas 4 to 5 feet.

Wave Detail: East 5 feet at 5 seconds. Isolated showers.

.TONIGHT...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.

Wave Detail: East 4 feet at 4 seconds. Scattered showers.

.SUNDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.

Wave Detail: East 4 feet at 5 seconds. Isolated showers in the

morning.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 3 to

5 feet. Wave Detail: East 4 feet at 6 seconds. Isolated showers.

.MONDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.

Wave Detail: East northeast 4 feet at 6 seconds. Isolated showers

in the morning.

.MONDAY NIGHT...East northeast winds 20 to 25 knots. Seas 3 to

5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers.

.TUESDAY...East northeast winds 20 to 25 knots. Seas 3 to 5 feet.

Wave Detail: East 4 feet at 5 seconds. Isolated showers through

the night. Scattered showers in the evening, then isolated

showers after midnight.

.WEDNESDAY...East northeast winds 20 to 25 knots, easing to 15 to

20 knots after midnight. Seas 3 to 4 feet. Wave Detail: East

4 feet at 4 seconds. Scattered showers in the morning. Isolated

showers through the night, then scattered showers after midnight.



$$



PHZ121-180230-

Alenuihaha Channel-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...East northeast winds 25 to 30 knots, easing to 20 to

25 knots this afternoon. Seas 5 to 8 feet. Wave Detail: East

8 feet at 6 seconds. Scattered showers.

.TONIGHT...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Scattered

showers.

.SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.

Wave Detail: East northeast 6 feet at 6 seconds. Scattered

showers.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East northeast 7 feet at 7 seconds.

Scattered showers.

.MONDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.MONDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.TUESDAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East northeast winds 20 to 25 knots, easing to 15 to

20 knots after midnight. Seas 4 to 6 feet. Wave Detail: East

northeast 6 feet at 6 seconds. Isolated showers.



$$



PHZ122-180230-

Big Island Windward Waters-

320 AM HST Sat Oct 17 2026



.TODAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 5 feet at 7 seconds, north northwest 4 feet at

11 seconds and south 3 feet at 14 seconds. Scattered showers.

.TONIGHT...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.

Wave Detail: East 5 feet at 6 seconds and north 3 feet at

12 seconds. Scattered showers.

.SUNDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.

Wave Detail: East 5 feet at 6 seconds. Numerous showers.

.SUNDAY NIGHT...East northeast winds 15 to 20 knots. Seas 5 to

6 feet. Wave Detail: East 6 feet at 7 seconds. Scattered showers.

.MONDAY...East northeast winds 15 to 20 knots. Seas 5 to 6 feet.

Wave Detail: East 6 feet at 7 seconds. Scattered showers.

.MONDAY NIGHT...East northeast winds 15 to 20 knots. Seas to

5 feet. Wave Detail: East 5 feet at 7 seconds. Scattered showers.

.TUESDAY...East northeast winds 15 to 20 knots. Seas 5 to 7 feet.

Wave Detail: East 5 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 6 to 7 feet. Wave

Detail: East 5 feet at 7 seconds. Scattered showers in the

morning, then isolated showers through the night. Scattered

showers after midnight.



$$



PHZ123-180230-

Big Island Leeward Waters-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...West of the Big Island, winds variable less than

10 knots, becoming west southwest 10 to 15 knots this afternoon.

Near South Point, east winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: Northeast 6 feet at 6 seconds. Isolated showers this

morning.

.TONIGHT...Winds variable less than 10 knots west of the Big

Island...East northeast 15 to 20 knots near South Point. Seas

4 to 6 feet. Wave Detail: East northeast 5 feet at 6 seconds.

Isolated showers.

.SUNDAY...Winds variable less than 10 knots west of the Big

Island...East northeast 15 to 20 knots near South Point. Seas

3 to 5 feet. Wave Detail: East northeast 4 feet at 5 seconds.

Isolated showers in the afternoon.

.SUNDAY NIGHT...Winds variable less than 10 knots west of the Big

Island...East northeast 20 to 25 knots near South Point. Seas

3 to 5 feet. Wave Detail: East northeast 5 feet at 6 seconds.

Isolated showers.

.MONDAY...Winds variable less than 10 knots west of the Big

Island...East 20 to 25 knots near South Point. Seas 3 to 5 feet.

Wave Detail: East northeast 5 feet at 6 seconds.

.MONDAY NIGHT...Winds variable less than 10 knots west of the Big

Island...East northeast 20 to 25 knots near South Point. Seas

3 to 5 feet. Wave Detail: East northeast 5 feet at 6 seconds.

.TUESDAY...Winds variable less than 10 knots west of the Big

Island...East northeast 20 to 25 knots near South Point. Seas

4 to 6 feet. Wave Detail: East northeast 5 feet at 6 seconds.

Isolated showers in the evening.

.WEDNESDAY...Winds variable less than 10 knots west of the Big

Island...East northeast 15 to 20 knots near South Point. Seas

3 to 5 feet. Wave Detail: East northeast 4 feet at 6 seconds.

Isolated showers.



$$



PHZ124-180230-

Big Island Southeast Waters-

320 AM HST Sat Oct 17 2026



...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY MONDAY MORNING...



.TODAY...East northeast winds 20 to 25 knots. Seas 5 to 7 feet.

Wave Detail: East 6 feet at 6 seconds and south 3 feet at

14 seconds. Isolated showers.

.TONIGHT...East northeast winds to 20 knots. Seas 5 to 6 feet.

Wave Detail: East 6 feet at 6 seconds. Scattered showers.

.SUNDAY...East northeast winds 20 to 25 knots. Seas 5 to 6 feet.

Wave Detail: East 6 feet at 5 seconds. Scattered showers.

.SUNDAY NIGHT...East northeast winds 20 to 25 knots. Seas 6 to

8 feet. Wave Detail: East 7 feet at 6 seconds. Scattered showers.

.MONDAY...East northeast winds 20 to 25 knots. Seas 6 to 8 feet.

Wave Detail: East 7 feet at 6 seconds. Isolated showers.

.MONDAY NIGHT...East northeast winds 20 to 25 knots. Seas 5 to

7 feet. Wave Detail: East 7 feet at 6 seconds. Scattered showers.

.TUESDAY...East northeast winds 20 to 25 knots. Seas 6 to 7 feet.

Wave Detail: East 7 feet at 7 seconds. Scattered showers.

.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 5 to

7 feet. Wave Detail: East 7 feet at 6 seconds. Scattered showers

in the morning, then isolated showers through the night.

Scattered showers after midnight.



$$