Coastal Waters Forecast
Issued by NWS Honolulu, HI

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964
FZHW50 PHFO 091330
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
329 AM HST Thu Oct 9 2025

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

PHZ100-100200-
329 AM HST Thu Oct 9 2025

.Synopsis for Hawaiian coastal waters...
 A surface trough over the western coastal waters will continue
to drift northwest through the end of the week. High pressure
will build far northeast of the waters this weekend before a
potential surface trough develops north of the waters early next
week.

$$

PHZ110-100200-
Kauai Northwest Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots, becoming south
southwest 7 to 10 knots this afternoon. Seas to 3 feet. Wave
Detail: North 3 feet at 8 seconds. Isolated showers this morning,
then scattered showers this afternoon.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Scattered
showers.
.FRIDAY...Winds variable less than 10 knots. Seas to 3 feet. Wave
Detail: North northeast 3 feet at 9 seconds. Isolated showers in
the morning, then scattered showers in the afternoon.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East northeast 3 feet at 13 seconds.
Scattered showers.
.SATURDAY...East winds to 10 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and north northwest
3 feet at 14 seconds. Isolated showers in the morning, then
scattered showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 3 feet at 5 seconds and north
northwest 3 feet at 13 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave
Detail: Northwest 5 feet at 18 seconds and east southeast 3 feet
at 5 seconds. Scattered showers.
.MONDAY...East winds 7 to 10 knots. Seas to 7 feet. Wave Detail:
Northwest 6 feet at 15 seconds and east 3 feet at 5 seconds.
Scattered showers, then numerous showers after midnight.

$$

PHZ111-100200-
Kauai Windward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...South winds 7 to 10 knots this morning, becoming
variable less than 10 knots. Seas to 3 feet. Wave Detail: North
3 feet at 8 seconds. Scattered showers.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Scattered
showers, mainly in the evening.
.FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east
northeast 3 feet at 13 seconds. Isolated showers.
.SATURDAY...East winds to 10 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 14 seconds. Isolated showers in the morning, then scattered
showers in the afternoon.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 13 seconds. Scattered showers.
.SUNDAY...East winds 7 to 10 knots. Seas 5 to 7 feet. Wave
Detail: Northwest 5 feet at 18 seconds and east southeast 3 feet
at 5 seconds. Scattered showers.
.MONDAY...East winds to 10 knots. Seas to 7 feet. Wave Detail:
Northwest 6 feet at 16 seconds and east southeast 3 feet at
5 seconds. Scattered showers through the night, then numerous
showers through the day.

$$

PHZ112-100200-
Kauai Leeward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...South southeast winds 7 to 10 knots this morning,
becoming variable less than 10 knots. Seas to 3 feet. Wave
Detail: North 3 feet at 8 seconds. Scattered showers.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Scattered
showers.
.FRIDAY...Winds variable less than 10 knots. Seas to 3 feet. Wave
Detail: North northeast 3 feet at 9 seconds. Isolated showers in
the morning, then scattered showers in the afternoon.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds and east
northeast 3 feet at 17 seconds. Scattered showers.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 6 seconds and north
northwest 3 feet at 14 seconds. Isolated showers in the morning,
then scattered showers in the afternoon.
.SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 4 to
5 feet. Wave Detail: East southeast 3 feet at 6 seconds and north
northwest 3 feet at 12 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet.
Wave Detail: Northwest 5 feet at 18 seconds and east southeast
3 feet at 5 seconds. Scattered showers.
.MONDAY...East winds 7 to 10 knots. Seas 6 to 7 feet. Wave
Detail: Northwest 6 feet at 15 seconds and east southeast 3 feet
at 5 seconds. Scattered showers, then numerous showers after
midnight.

$$

PHZ113-100200-
Kauai Channel-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 8 seconds. Scattered
showers, mainly this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers.
.FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east
northeast 3 feet at 9 seconds. Isolated showers.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers in the morning, then scattered showers in the afternoon.
.SATURDAY NIGHT...East northeast winds to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 5 seconds and north
northwest 3 feet at 13 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 4 to 6 feet.
Wave Detail: Northwest 4 feet at 18 seconds and east 3 feet at
5 seconds. Scattered showers.
.MONDAY...East winds 7 to 10 knots. Seas 5 to 6 feet. Wave
Detail: Northwest 4 feet at 16 seconds and east 3 feet at
4 seconds. Scattered showers, then numerous showers after
midnight.

$$

PHZ114-100200-
Oahu Windward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots, becoming south 7 to
10 knots this afternoon. Seas to 3 feet. Wave Detail: North
3 feet at 8 seconds. Isolated showers.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North 3 feet at 9 seconds. Isolated showers.
.FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds and east
northeast 3 feet at 17 seconds. Isolated showers.
.SATURDAY...East winds to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 15 seconds. Isolated showers.
.SATURDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 13 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave
Detail: Northwest 5 feet at 18 seconds, east southeast 3 feet at
5 seconds and east 3 feet at 12 seconds. Scattered showers.
.MONDAY...East winds to 10 knots. Seas 6 to 7 feet. Wave Detail:
Northwest 6 feet at 16 seconds and east southeast 3 feet at
4 seconds. Scattered showers, then numerous showers after
midnight.

$$

PHZ115-100200-
Oahu Leeward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers.
.FRIDAY...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers in the evening, then scattered showers after midnight.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 4 to 6 feet.
Wave Detail: Northwest 4 feet at 18 seconds and east 3 feet at
5 seconds. Isolated showers through the night, then scattered
showers through the day.
.MONDAY...East northeast winds 7 to 10 knots, becoming variable
less than 10 knots, then becoming east southeast 7 to 10 knots
after midnight. Seas 4 to 5 feet. Wave Detail: Northwest 4 feet
at 16 seconds. Scattered showers.

$$

PHZ116-100200-
Kaiwi Channel-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet. Wave
Detail: North 3 feet at 8 seconds. Isolated showers this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers after midnight.
.FRIDAY...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers in the morning.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 5 seconds and east
northeast 3 feet at 12 seconds.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds and northwest
3 feet at 14 seconds. Isolated showers.
.SATURDAY NIGHT...East northeast winds to 15 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds and northwest
3 feet at 13 seconds. Isolated showers in the evening, then
scattered showers after midnight.
.SUNDAY...East northeast winds to 15 knots, easing to 10 knots
after midnight. Seas 4 to 6 feet. Wave Detail: Northwest 5 feet
at 18 seconds and east 4 feet at 5 seconds. Isolated showers
through the night, then scattered showers through the day.
.MONDAY...East winds 7 to 10 knots, veering to east southeast
10 to 15 knots after midnight. Seas 4 to 6 feet. Wave Detail:
Northwest 5 feet at 16 seconds and east northeast 3 feet at
4 seconds. Scattered showers.

$$

PHZ117-100200-
Maui County Windward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet. Wave
Detail: North 3 feet at 9 seconds.
.TONIGHT...Winds variable less than 10 knots. Seas 3 to 4 feet.
Wave Detail: North 3 feet at 9 seconds. Isolated showers.
.FRIDAY...East southeast winds 7 to 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers in the morning.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
5 feet. Wave Detail: Southeast 4 feet at 5 seconds and east
northeast 3 feet at 12 seconds. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 5 seconds and northwest 3 feet
at 14 seconds. Isolated showers.
.SATURDAY NIGHT...East winds to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 4 feet at 5 seconds and northwest 3 feet
at 13 seconds. Scattered showers.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave
Detail: Northwest 5 feet at 18 seconds, east southeast 4 feet at
5 seconds and east 3 feet at 13 seconds. Scattered showers.
.MONDAY...East southeast winds 10 to 15 knots. Seas 6 to 7 feet.
Wave Detail: Northwest 6 feet at 16 seconds, east southeast
3 feet at 4 seconds and east 3 feet at 12 seconds. Scattered
showers.

$$

PHZ118-100200-
Maui County Leeward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers.
.FRIDAY...Winds variable less than 10 knots, becoming east 7 to
10 knots in the afternoon. Seas to 3 feet. Isolated showers in
the morning.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds.
.SATURDAY...Northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SUNDAY...East northeast winds 7 to 10 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers. Scattered showers after midnight.
.MONDAY...East winds 7 to 10 knots, veering to southeast after
midnight. Seas 3 to 5 feet. Wave Detail: Northwest 3 feet at
16 seconds. Scattered showers.

$$

PHZ119-100200-
Maalaea Bay-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 2 feet or
less. Isolated showers this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or
less.
.FRIDAY...Winds variable less than 10 knots. Seas to 2 feet or
less.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas to 2 feet
or less.
.SATURDAY...Winds variable less than 10 knots. Seas to 2 feet or
less.
.SATURDAY NIGHT...Winds variable less than 10 knots. Seas to
2 feet or less.
.SUNDAY...Winds variable less than 10 knots. Seas to 2 feet or
less. Isolated showers in the afternoon.
.MONDAY...Winds variable less than 10 knots. Seas to 3 feet.
Isolated showers through the night.

$$

PHZ120-100200-
Pailolo Channel-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 2 feet or
less. Scattered showers, mainly this morning.
.TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or
less. Isolated showers in the evening.
.FRIDAY...Winds variable less than 10 knots, becoming east
northeast 7 to 10 knots in the afternoon. Seas to 2 feet or less,
then to 3 feet in the afternoon.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas to
3 feet.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 4 seconds. Isolated showers.
.SATURDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East 3 feet at 4 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.MONDAY...East northeast winds 7 to 10 knots, becoming variable
less than 10 knots. Seas 3 to 4 feet. Scattered showers.

$$

PHZ121-100200-
Alenuihaha Channel-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet.
.TONIGHT...Winds variable less than 10 knots, becoming east 7 to
10 knots after midnight. Seas to 3 feet. Isolated showers.
.FRIDAY...East northeast winds 7 to 10 knots. Seas 3 to 4 feet.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers
after midnight.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers.
.SATURDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers
in the evening, then scattered showers after midnight.
.SUNDAY...East northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
northeast 4 feet at 5 seconds. Isolated showers through the
night. Scattered showers through the day.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East northeast 3 feet at 4 seconds and west northwest
3 feet at 16 seconds. Scattered showers.

$$

PHZ122-100200-
Big Island Windward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...South winds 7 to 10 knots this morning, becoming
variable less than 10 knots. Seas 3 to 4 feet. Wave Detail: North
3 feet at 9 seconds. Isolated showers this morning.
.TONIGHT...Southeast winds 7 to 10 knots. Seas 3 to 4 feet. Wave
Detail: North 3 feet at 9 seconds. Isolated showers in the
evening.
.FRIDAY...East southeast winds 7 to 10 knots. Seas 3 to 4 feet.
Wave Detail: North northeast 3 feet at 9 seconds. Isolated
showers in the afternoon.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 4 seconds and east
northeast 3 feet at 13 seconds. Isolated showers in the evening,
then scattered showers after midnight.
.SATURDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 4 seconds. Scattered showers.
.SATURDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East northeast 3 feet at 4 seconds, northwest 3 feet
at 13 seconds and east 3 feet at 15 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon, then becoming east 10 to 15 knots.
Seas 5 to 7 feet. Wave Detail: Northwest 4 feet at 18 seconds and
east 3 feet at 13 seconds. Scattered showers.
.MONDAY...East southeast winds 10 to 15 knots. Seas 5 to 7 feet.
Wave Detail: Northwest 5 feet at 16 seconds and east 3 feet at
12 seconds. Scattered showers.

$$

PHZ123-100200-
Big Island Leeward Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots, becoming south
southeast 7 to 10 knots this afternoon. Seas to 3 feet.
.TONIGHT...Southeast winds 7 to 10 knots. Seas 3 to 4 feet.
Isolated showers in the evening.
.FRIDAY...Northeast winds 7 to 10 knots, veering to south in the
afternoon. Seas 3 to 4 feet.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 4 seconds. Isolated
showers after midnight.
.SATURDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East 3 feet at 5 seconds. Isolated showers.
.SATURDAY NIGHT...East southeast winds 15 to 20 knots, backing to
northeast after midnight. Seas 3 to 5 feet. Wave Detail: East
3 feet at 5 seconds. Isolated showers.
.SUNDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East 3 feet at 4 seconds. Isolated showers through the
night. Scattered showers through the day.
.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: Northwest 3 feet at 18 seconds. Scattered showers.

$$

PHZ124-100200-
Big Island Southeast Waters-
330 AM HST Thu Oct 9 2025

.TODAY...Winds variable less than 10 knots. Seas to 3 feet.
Scattered showers, mainly this morning.
.TONIGHT...Winds variable less than 10 knots, becoming east 7 to
10 knots after midnight. Seas 3 to 4 feet. Isolated showers.
.FRIDAY...East winds 7 to 10 knots. Seas 3 to 4 feet. Isolated
showers.
.FRIDAY NIGHT...Winds variable less than 10 knots. Seas 4 to
5 feet. Wave Detail: East southeast 4 feet at 5 seconds.
Scattered showers.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at
16 seconds. Scattered showers.
.SATURDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 5 seconds and east 3 feet at
15 seconds. Scattered showers.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 6 feet.
Wave Detail: East northeast 4 feet at 4 seconds and east 3 feet
at 13 seconds. Scattered showers.
.MONDAY...East northeast winds 10 to 15 knots. Seas 5 to 6 feet.
Wave Detail: East northeast 3 feet at 4 seconds, east 3 feet at
12 seconds and northwest 3 feet at 18 seconds. Scattered showers.

$$