717
FZHW50 PHFO 311554
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
553 AM HST Sun Aug 31 2025

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

PHZ100-010400-
553 AM HST Sun Aug 31 2025

.Synopsis for Hawaiian coastal waters...
 Weak high pressure northeast of the state will remain displaced
by a large low far to the north, keeping light to moderate trades
in place. A low will pass just south of the Big Island today
through Monday.

$$

PHZ110-010400-
Kauai Northwest Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds 10 to 15 knots. Seas to 3 feet. Isolated
showers.
.TONIGHT...East northeast winds to 10 knots. Seas 3 to 4 feet.
Isolated showers.
.MONDAY...East northeast winds 10 to 15 knots. Seas 3 to 4 feet.
Isolated showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: Northwest 3 feet at 14 seconds. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East 3 feet at 5 seconds and northwest 3 feet at
14 seconds. Isolated showers in the morning.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East 3 feet at 5 seconds and northwest 3 feet at
13 seconds. Isolated showers.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East 3 feet at 5 seconds and north northwest 3 feet at
12 seconds. Isolated showers in the morning. Isolated showers
after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East 3 feet at 5 seconds. Isolated showers in the
morning. Isolated showers after midnight.

$$

PHZ111-010400-
Kauai Windward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds to 10 knots. Seas 3 to 4 feet. Wave Detail:
East southeast 3 feet at 5 seconds. Isolated showers.
.TONIGHT...East winds to 10 knots. Seas to 4 feet. Wave Detail:
East southeast 3 feet at 6 seconds. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas to 4 feet. Wave Detail:
East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...East winds 10 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.
.TUESDAY...East winds to 10 knots. Seas to 5 feet. Wave Detail:
East southeast 3 feet at 5 seconds and northwest 3 feet at
14 seconds. Isolated showers in the morning.
.TUESDAY NIGHT...East winds to 10 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 13 seconds. Isolated showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 12 seconds. Isolated showers in the morning. Isolated showers
after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 6 seconds. Isolated showers in
the morning. Isolated showers through the day.

$$

PHZ112-010400-
Kauai Leeward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds 7 to 10 knots. Seas to 3 feet. Scattered
showers, mainly this morning.
.TONIGHT...East winds 7 to 10 knots. Seas 3 to 4 feet. Isolated
showers.
.MONDAY...Northeast winds 7 to 10 knots, veering to east
northeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet.
Isolated showers in the morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 6 seconds and northwest 3 feet
at 14 seconds. Isolated showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 14 seconds. Isolated showers.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 3 feet at 5 seconds and northwest
3 feet at 13 seconds. Isolated showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 12 seconds.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers
after midnight.

$$

PHZ113-010400-
Kauai Channel-
553 AM HST Sun Aug 31 2025

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

$$

PHZ114-010400-
Oahu Windward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.TONIGHT...East southeast winds 10 to 15 knots. Seas to 4 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.MONDAY...East winds 10 to 15 knots. Seas to 4 feet. Wave Detail:
East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...East winds 10 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.
.TUESDAY...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 14 seconds.
.TUESDAY 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. Isolated showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 12 seconds. Isolated showers in the morning. Isolated showers
after midnight.
.THURSDAY...East winds to 15 knots. Seas to 4 feet. Wave Detail:
East southeast 4 feet at 5 seconds. Isolated showers in the
morning. Isolated showers after midnight.

$$

PHZ115-010400-
Oahu Leeward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds 7 to 10 knots. Seas to 3 feet. Isolated
showers this afternoon.
.TONIGHT...East winds 7 to 10 knots in the evening, becoming
variable less than 10 knots. Seas 3 to 4 feet. Isolated showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds. Isolated showers in the
morning.
.TUESDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet.
.WEDNESDAY...East winds 7 to 10 knots, backing to east northeast
10 to 15 knots. Seas 3 to 4 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds.

$$

PHZ116-010400-
Kaiwi Channel-
553 AM HST Sun Aug 31 2025

.TODAY...East northeast winds 7 to 10 knots, becoming 10 to
15 knots this afternoon. Seas 3 to 4 feet. Wave Detail: East
southeast 3 feet at 5 seconds. Isolated showers.
.TONIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY...East northeast winds to 15 knots. Seas 3 to 4 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated showers
in the morning.
.MONDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.TUESDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 3 feet at 5 seconds and north
northwest 3 feet at 14 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 3 feet at 4 seconds and northwest
3 feet at 13 seconds. Isolated showers after midnight.
.WEDNESDAY...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 4 seconds and north
northwest 3 feet at 12 seconds. Isolated showers in the morning.
Isolated showers after midnight.
.THURSDAY...East northeast winds to 15 knots. Seas 3 to 4 feet.
Wave Detail: East 4 feet at 5 seconds. Isolated showers in the
morning. Isolated showers after midnight.

$$

PHZ117-010400-
Maui County Windward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East southeast winds 10 to 15 knots, rising to 15 to
20 knots this afternoon. Seas 3 to 4 feet. Wave Detail: East
southeast 4 feet at 5 seconds. Isolated showers.
.TONIGHT...East southeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. Seas to 4 feet. Wave Detail: East
southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY...East winds 15 to 20 knots. Seas to 4 feet. Wave Detail:
East southeast 3 feet at 5 seconds. Isolated showers in the
morning.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 4 seconds and north northwest
3 feet at 15 seconds. Isolated showers.
.TUESDAY...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds and northwest 3 feet
at 14 seconds.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas to 5 feet. Wave
Detail: East southeast 3 feet at 4 seconds and northwest 3 feet
at 13 seconds. Isolated showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 4 seconds and northwest 3 feet
at 12 seconds. Isolated showers in the morning. Isolated showers
through the day.
.THURSDAY...East winds 15 to 20 knots. Seas to 4 feet. Wave
Detail: East southeast 4 feet at 5 seconds. Isolated showers in
the morning. Isolated showers through the day.

$$

PHZ118-010400-
Maui County Leeward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East northeast winds 7 to 10 knots, veering to east
southeast 10 to 15 knots this afternoon. Seas to 3 feet. Isolated
showers.
.TONIGHT...East southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Isolated showers in the evening. Scattered showers after
midnight.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...East winds 7 to 10 knots, backing to east
northeast 10 to 15 knots after midnight. Seas to 3 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.TUESDAY...East winds 7 to 10 knots. Seas 3 to 4 feet.
.TUESDAY NIGHT...East winds 7 to 10 knots. Seas 3 to 4 feet.
.WEDNESDAY...East winds 7 to 10 knots. Seas 3 to 4 feet.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds.

$$

PHZ119-010400-
Maalaea Bay-
553 AM HST Sun Aug 31 2025

.TODAY...North winds to 15 knots, rising to 20 knots this
afternoon. Seas to 2 feet or less.
.TONIGHT...North winds 15 to 20 knots. Seas to 2 feet or less.
.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 15 knots, becoming north northeast in
the afternoon. Seas to 2 feet or less.
.TUESDAY NIGHT...North winds to 20 knots, easing to 15 knots
after midnight. Seas to 2 feet or less.
.WEDNESDAY...North winds to 15 knots, rising to 20 knots in the
afternoon and evening, easing to 15 knots after midnight. Seas to
2 feet or less.
.THURSDAY...North winds to 20 knots. Seas to 2 feet or less.

$$

PHZ120-010400-
Pailolo Channel-
553 AM HST Sun Aug 31 2025

.TODAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots this afternoon. Seas to 3 feet. Isolated showers.
.TONIGHT...East northeast winds 15 to 20 knots. Seas to 3 feet.
Isolated showers.
.MONDAY...East northeast winds 15 to 20 knots. Seas to 3 feet.
Isolated showers in the morning.
.MONDAY NIGHT...East northeast winds 15 to 20 knots. Seas to
3 feet. Isolated showers.
.TUESDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas to 3 feet.
.TUESDAY NIGHT...East northeast winds 15 to 20 knots, becoming
east 10 to 15 knots after midnight. Seas to 3 feet. Isolated
showers after midnight.
.WEDNESDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon and evening, then becoming east 10 to
15 knots after midnight. Seas to 3 feet. Isolated showers in the
morning. Isolated showers after midnight.
.THURSDAY...East northeast winds 15 to 20 knots. Seas to 3 feet.
Isolated showers in the morning. Isolated showers after midnight.

$$

PHZ121-010400-
Alenuihaha Channel-
553 AM HST Sun Aug 31 2025

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

$$

PHZ122-010400-
Big Island Windward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East southeast winds 10 to 15 knots, becoming east 15 to
20 knots this afternoon. Seas 3 to 5 feet. Wave Detail: East
southeast 3 feet at 7 seconds. Scattered showers, mainly this
morning.
.TONIGHT...East southeast winds 10 to 15 knots. Seas 4 to 5 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.MONDAY...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 10 seconds.
.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: North 3 feet at 11 seconds and east southeast 3 feet at
11 seconds. Isolated showers after midnight.
.TUESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 11 seconds and north northwest
3 feet at 14 seconds.
.TUESDAY NIGHT...East winds to 10 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 11 seconds and north northwest
3 feet at 13 seconds. Isolated showers after midnight.
.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: Northwest 3 feet at 12 seconds. Isolated showers in the
morning. Isolated showers through the day.
.THURSDAY...East winds 10 to 15 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers in
the morning. Isolated showers through the day.

$$

PHZ123-010400-
Big Island Leeward Waters-
553 AM HST Sun Aug 31 2025

.TODAY...West of the Big Island, winds variable less than
10 knots, becoming west northwest 7 to 10 knots this afternoon.
Near South Point, east winds 15 to 20 knots. Seas 3 to 4 feet.
Wave Detail: East southeast 3 feet at 4 seconds. Isolated
showers.
.TONIGHT...West southwest winds 7 to 10 knots west of the Big
Island...East 15 to 20 knots near South Point. Seas 3 to 4 feet.
Wave Detail: Southeast 3 feet at 4 seconds. Isolated showers.
.MONDAY...West of the Big Island, west southwest winds 7 to
10 knots. Near South Point, east winds 15 to 20 knots, becoming
to 20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East
southeast 4 feet at 5 seconds. Isolated showers.
.MONDAY NIGHT...West of the Big Island, southwest winds 7 to
10 knots, veering to west northwest after midnight. Near South
Point, east winds 15 to 20 knots. Seas 3 to 5 feet. Wave Detail:
East southeast 4 feet at 5 seconds. Isolated showers.
.TUESDAY...Winds variable less than 10 knots west of the Big
Island...East to 15 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East southeast 3 feet at 4 seconds. Isolated
showers.
.TUESDAY NIGHT...Winds variable less than 10 knots west of the
Big Island...East to 15 knots near South Point. Seas 3 to 5 feet.
Wave Detail: East southeast 3 feet at 4 seconds. Isolated
showers.
.WEDNESDAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east northeast winds 10 to 15 knots,
rising to 15 to 20 knots. Seas 3 to 5 feet. Wave Detail: East
southeast 3 feet at 4 seconds. Isolated showers in the morning.
Isolated showers after midnight.
.THURSDAY...West of the Big Island, winds variable less than
10 knots. Near South Point, east winds 15 to 20 knots, becoming
east northeast 10 to 15 knots after midnight. Seas 3 to 4 feet.
Wave Detail: East 3 feet at 4 seconds. Isolated showers in the
morning. Isolated showers after midnight.

$$

PHZ124-010400-
Big Island Southeast Waters-
553 AM HST Sun Aug 31 2025

.TODAY...East winds to 15 knots. Seas 4 to 5 feet. Wave Detail:
East southeast 3 feet at 6 seconds. Scattered showers, mainly
this morning.
.TONIGHT...East winds 10 to 15 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.MONDAY...East winds 15 to 20 knots. Seas 4 to 5 feet. Wave
Detail: East southeast 4 feet at 5 seconds.
.MONDAY NIGHT...East northeast winds to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 4 feet at 5 seconds. Isolated
showers after midnight.
.TUESDAY...East northeast winds to 15 knots. Seas 3 to 5 feet.
Wave Detail: East southeast 4 feet at 5 seconds.
.TUESDAY NIGHT...East northeast winds to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers after midnight.
.WEDNESDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers in the morning. Isolated showers through the day.
.THURSDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Wave Detail: East southeast 4 feet at 5 seconds. Isolated
showers in the morning. Isolated showers through the day.

$$