Coastal Waters Forecast
Issued by NWS Honolulu, HI

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218
FZHW50 PHFO 080105
CWFHFO

Coastal Waters Forecast
National Weather Service Honolulu HI
304 PM HST Tue Oct 7 2025

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

PHZ100-081400-
304 PM HST Tue Oct 7 2025

.Synopsis for Hawaiian coastal waters...
 A surface trough will slowly drift west over the coastal waters
through the end of this week. This will help weaken the trades
and maintain a flow out of the south or southeast. By this
weekend, high pressure will build far northeast of the state and
bring a return to more typical easterly trades.

$$

PHZ110-081400-
Kauai Northwest Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...East winds 7 to 10 knots, veering to south southeast
after midnight. Seas to 2 feet or less. Isolated showers.
.WEDNESDAY...Winds variable less than 10 knots. Seas to 2 feet or
less. Isolated showers in the morning, then scattered showers in
the afternoon.
.WEDNESDAY NIGHT...Winds variable less than 10 knots, becoming
south 7 to 10 knots after midnight. Seas to 2 feet or less.
Scattered showers.
.THURSDAY...South southwest winds 7 to 10 knots. Seas to 3 feet.
Scattered showers.
.THURSDAY NIGHT...South southeast winds 7 to 10 knots. Seas to
3 feet. Scattered showers.
.FRIDAY...East southeast winds 7 to 10 knots. Seas to 3 feet.
Scattered showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas to 3 feet.
Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: North northwest 3 feet at 13 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet.
Wave Detail: Northwest 6 feet at 18 seconds. Scattered showers.

$$

PHZ111-081400-
Kauai Windward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...Winds variable less than 10 knots. Seas to 3 feet.
Wave Detail: North 3 feet at 11 seconds. Isolated showers this
evening, then scattered showers after midnight.
.WEDNESDAY...South southeast winds 7 to 10 knots. Seas to 2 feet
or less. Scattered showers.
.WEDNESDAY NIGHT...South winds 7 to 10 knots. Seas to 2 feet or
less. Scattered showers in the evening, then numerous showers
after midnight.
.THURSDAY...South winds 7 to 10 knots. Seas to 3 feet. Scattered
showers.
.THURSDAY NIGHT...South southeast winds 7 to 10 knots. Seas to
3 feet. Scattered showers.
.FRIDAY...Southeast winds to 10 knots. Seas 3 to 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Scattered showers.
.SATURDAY...East winds 10 to 15 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 3 feet at 5 seconds and north northwest
3 feet at 14 seconds. Scattered showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet.
Wave Detail: Northwest 6 feet at 18 seconds, east southeast
3 feet at 5 seconds and east 3 feet at 13 seconds. Scattered
showers.

$$

PHZ112-081400-
Kauai Leeward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or
less. Isolated showers this evening, then scattered showers after
midnight.
.WEDNESDAY...South southeast winds 7 to 10 knots. Seas to 2 feet
or less. Scattered showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots, becoming
south southwest 7 to 10 knots after midnight. Seas to 2 feet or
less, then to 3 feet after midnight. Scattered showers.
.THURSDAY...South winds 7 to 10 knots. Seas to 3 feet. Scattered
showers.
.THURSDAY NIGHT...Southeast winds 7 to 10 knots. Seas to 3 feet.
Scattered showers.
.FRIDAY...East southeast winds to 10 knots. Seas to 3 feet.
Scattered showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 6 seconds. Scattered showers.
.SATURDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots. Seas 4 to 6 feet. Wave Detail: Southeast 3 feet at
6 seconds and north northwest 3 feet at 13 seconds. Scattered
showers in the morning, then isolated showers in the afternoon.
Scattered showers through the day.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 7 feet.
Wave Detail: Northwest 6 feet at 17 seconds and east southeast
3 feet at 5 seconds. Scattered showers.

$$

PHZ113-081400-
Kauai Channel-
305 PM HST Tue Oct 7 2025

.TONIGHT...Winds variable less than 10 knots. Seas to 2 feet or
less. Scattered showers.
.WEDNESDAY...South winds 10 to 15 knots. Seas to 3 feet.
Scattered showers.
.WEDNESDAY NIGHT...South winds to 10 knots. Seas to 2 feet or
less, then to 3 feet after midnight. Numerous showers, mainly in
the evening.
.THURSDAY...South winds to 10 knots. Seas to 3 feet. Scattered
showers, mainly in the morning.
.THURSDAY NIGHT...Southeast winds 7 to 10 knots. Seas to 3 feet.
Scattered showers.
.FRIDAY...East winds 7 to 10 knots. Seas 3 to 4 feet. Isolated
showers in the morning, then scattered showers in the afternoon.
.FRIDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: Southeast 3 feet at 5 seconds. Scattered
showers, mainly in the evening.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 4 to
6 feet. Wave Detail: East southeast 3 feet at 5 seconds and north
northwest 3 feet at 12 seconds. Isolated showers through the
night, then scattered showers through the day.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 5 to 6 feet.
Wave Detail: Northwest 5 feet at 18 seconds and east 3 feet at
5 seconds. Scattered showers.

$$

PHZ114-081400-
Oahu Windward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South southeast winds 7 to 10 knots. Seas to 3 feet.
Wave Detail: North northwest 3 feet at 11 seconds. Scattered
showers.
.WEDNESDAY...South winds 7 to 10 knots, becoming 10 to 15 knots
in the afternoon. Seas to 3 feet. Isolated showers in the
morning, then scattered showers in the afternoon.
.WEDNESDAY NIGHT...South winds 7 to 10 knots. Seas to 2 feet or
less. Scattered showers.
.THURSDAY...South southeast winds 7 to 10 knots. Seas to 2 feet
or less, then to 3 feet in the afternoon. Isolated showers.
.THURSDAY NIGHT...Southeast winds 7 to 10 knots. Seas to 3 feet.
Scattered showers, mainly in the evening.
.FRIDAY...East southeast winds 10 to 15 knots. Seas 3 to 4 feet.
Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.FRIDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 3 feet at 5 seconds and north northwest
3 feet at 14 seconds. Isolated showers, then scattered showers
after midnight.
.SUNDAY...East winds 15 to 20 knots, easing to 10 to 15 knots
after midnight. Seas 5 to 7 feet. Wave Detail: Northwest 6 feet
at 18 seconds, east southeast 3 feet at 5 seconds and east 3 feet
at 13 seconds. Scattered showers.

$$

PHZ115-081400-
Oahu Leeward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South winds 7 to 10 knots. Seas to 2 feet or less,
then to 3 feet after midnight. Scattered showers.
.WEDNESDAY...South southwest winds 10 to 15 knots. Seas to
3 feet. Scattered showers.
.WEDNESDAY NIGHT...South southeast winds to 10 knots. Seas to
2 feet or less, then to 3 feet after midnight. Scattered showers,
mainly in the evening.
.THURSDAY...South southeast winds 7 to 10 knots. Seas to 3 feet.
Isolated showers.
.THURSDAY NIGHT...East southeast winds 7 to 10 knots. Seas to
3 feet. Isolated showers in the evening, then scattered showers
after midnight.
.FRIDAY...East winds 7 to 10 knots. Seas to 3 feet. Isolated
showers.
.FRIDAY NIGHT...East northeast winds 10 to 15 knots. Seas to
3 feet. Wave Detail: Southeast 3 feet at 6 seconds. Isolated
showers.
.SATURDAY...East northeast winds 10 to 15 knots. Seas 3 to
5 feet. Wave Detail: East southeast 3 feet at 6 seconds. Isolated
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. Isolated showers through the night, then scattered
showers through the day.

$$

PHZ116-081400-
Kaiwi Channel-
305 PM HST Tue Oct 7 2025

.TONIGHT...South winds 7 to 10 knots. Seas to 3 feet. Scattered
showers.
.WEDNESDAY...South southwest winds to 10 knots. Seas to 3 feet.
Isolated showers.
.WEDNESDAY NIGHT...South southeast winds 7 to 10 knots. Seas to
2 feet or less. Isolated showers.
.THURSDAY...South southeast winds 7 to 10 knots. Seas to 3 feet.
Isolated showers in the morning.
.THURSDAY NIGHT...East southeast winds 7 to 10 knots. Seas to
3 feet. Isolated showers.
.FRIDAY...East winds 7 to 10 knots, backing to east northeast
10 to 15 knots in the afternoon. Seas 3 to 4 feet. Wave Detail:
Southeast 3 feet at 5 seconds. Isolated showers.
.FRIDAY NIGHT...East northeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 3 feet at 5 seconds and north northwest
3 feet at 12 seconds. Isolated showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 4 to 6 feet.
Wave Detail: Northwest 5 feet at 18 seconds, east 3 feet at
5 seconds and east 3 feet at 13 seconds. Isolated showers through
the night, then scattered showers through the day.

$$

PHZ117-081400-
Maui County Windward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South southeast winds to 10 knots. Seas 3 to 4 feet.
Wave Detail: North northwest 3 feet at 12 seconds. Isolated
showers. Hazy after midnight.
.WEDNESDAY...South winds to 10 knots. Seas to 3 feet. Hazy.
Isolated showers.
.WEDNESDAY NIGHT...Southeast winds to 10 knots. Seas to 2 feet or
less. Hazy in the evening. Isolated showers.
.THURSDAY...Southeast winds 7 to 10 knots. Seas to 2 feet or
less, then to 3 feet in the afternoon. Isolated showers in the
afternoon.
.THURSDAY NIGHT...East southeast winds 10 to 15 knots. Seas to
3 feet. Isolated showers.
.FRIDAY...East southeast winds 10 to 15 knots, becoming east
15 to 20 knots in the afternoon. Seas 3 to 4 feet. Wave Detail:
Southeast 3 feet at 5 seconds. Isolated showers.
.FRIDAY NIGHT...East southeast winds to 15 knots. Seas to 4 feet.
Wave Detail: Southeast 3 feet at 5 seconds. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East southeast 3 feet at 5 seconds, north northwest
3 feet at 12 seconds and east 3 feet at 14 seconds. Isolated
showers through the night. Scattered showers through the day.
.SUNDAY...East winds 15 to 20 knots, easing to 10 to 15 knots
after midnight. Seas 5 to 7 feet. Wave Detail: Northwest 6 feet
at 18 seconds, east southeast 3 feet at 4 seconds and east 3 feet
at 13 seconds. Scattered showers.

$$

PHZ118-081400-
Maui County Leeward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South winds to 10 knots. Seas to 2 feet or less.
Isolated showers.
.WEDNESDAY...South winds to 10 knots. Seas to 2 feet or less.
Isolated showers.
.WEDNESDAY NIGHT...South southeast winds 7 to 10 knots. Seas to
2 feet or less. Isolated showers.
.THURSDAY...South southeast winds 7 to 10 knots. Seas to 2 feet
or less.
.THURSDAY NIGHT...East southeast winds 7 to 10 knots. Seas to
3 feet. Isolated showers.
.FRIDAY...East winds 7 to 10 knots. Seas 3 to 4 feet. Isolated
showers.
.FRIDAY NIGHT...East northeast winds 10 to 15 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
5 feet. Wave Detail: East southeast 3 feet at 5 seconds. Isolated
showers.
.SUNDAY...East northeast winds 10 to 15 knots. Seas 3 to 5 feet.
Wave Detail: Northwest 3 feet at 18 seconds. Isolated showers.
Scattered showers after midnight.

$$

PHZ119-081400-
Maalaea Bay-
305 PM HST Tue Oct 7 2025

.TONIGHT...Winds variable less than 10 knots, becoming south 7 to
10 knots after midnight. Seas to 2 feet or less. Isolated
showers.
.WEDNESDAY...South southwest winds 7 to 10 knots. Seas to 2 feet
or less. Isolated showers.
.WEDNESDAY NIGHT...Winds variable less than 10 knots. Seas to
2 feet or less. Isolated showers in the evening.
.THURSDAY...Winds variable less than 10 knots. Seas to 2 feet or
less.
.THURSDAY NIGHT...Winds variable less than 10 knots, becoming
east northeast 7 to 10 knots after midnight. Seas to 2 feet or
less. Isolated showers in the evening.
.FRIDAY...Northeast winds 10 to 15 knots. Seas to 2 feet or less.
.FRIDAY NIGHT...Northeast winds to 15 knots. Seas to 2 feet or
less.
.SATURDAY...Northeast winds to 15 knots. Seas to 2 feet or less.
.SUNDAY...Northeast winds to 15 knots. Seas to 3 feet. Isolated
showers.

$$

PHZ120-081400-
Pailolo Channel-
305 PM HST Tue Oct 7 2025

.TONIGHT...South winds 7 to 10 knots. Seas to 2 feet or less.
Scattered showers, mainly this evening.
.WEDNESDAY...South southwest winds 10 to 15 knots. Seas to 2 feet
or less. Scattered showers, mainly in the morning.
.WEDNESDAY NIGHT...Winds variable less than 10 knots. Seas to
2 feet or less. Isolated showers in the evening.
.THURSDAY...South southeast winds 7 to 10 knots. Seas to 2 feet
or less.
.THURSDAY NIGHT...Winds variable less than 10 knots, becoming
east 10 to 15 knots after midnight. Seas to 2 feet or less.
Isolated showers.
.FRIDAY...East winds 10 to 15 knots, becoming east northeast
15 to 20 knots in the afternoon. Seas to 2 feet or less, then to
3 feet in the afternoon. Isolated showers.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas to
3 feet. Isolated showers.
.SATURDAY...East northeast winds 15 to 20 knots. Seas 3 to
4 feet. Isolated showers.
.SUNDAY...East northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. Seas 3 to 4 feet. Isolated showers.

$$

PHZ121-081400-
Alenuihaha Channel-
305 PM HST Tue Oct 7 2025

.TONIGHT...South winds 7 to 10 knots. Seas to 2 feet or less.
Isolated showers.
.WEDNESDAY...South southwest winds to 10 knots. Seas to 2 feet or
less. Isolated showers in the morning. Hazy.
.WEDNESDAY NIGHT...Southeast winds 7 to 10 knots. Seas to 2 feet
or less. Isolated showers in the evening. Hazy.
.THURSDAY...Southeast winds 7 to 10 knots. Seas to 2 feet or
less.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas to 3 feet.
Isolated showers.
.FRIDAY...East northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas 3 to 5 feet. Wave Detail: East
3 feet at 5 seconds.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 3 to
5 feet. Wave Detail: East 4 feet at 5 seconds. Isolated showers.
.SATURDAY...East northeast winds 20 to 25 knots, easing to 15 to
20 knots after midnight. Seas 3 to 5 feet. Wave Detail: East
4 feet at 5 seconds. Isolated showers.
.SUNDAY...East northeast winds 15 to 20 knots. Seas 4 to 5 feet.
Wave Detail: East northeast 3 feet at 4 seconds and east 3 feet
at 13 seconds. Isolated showers through the night, then scattered
showers through the day.

$$

PHZ122-081400-
Big Island Windward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South southeast winds 10 to 15 knots. Seas 3 to
4 feet. Wave Detail: North northwest 3 feet at 12 seconds. Hazy.
Isolated showers this evening. Scattered showers after midnight.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas to
3 feet. Isolated showers in the morning. Hazy.
.WEDNESDAY NIGHT...South southeast winds 10 to 15 knots. Seas to
2 feet or less. Hazy. Isolated showers.
.THURSDAY...Southeast winds 10 to 15 knots. Seas to 3 feet.
Isolated showers.
.THURSDAY NIGHT...Southeast winds 10 to 15 knots. Seas 3 to
4 feet. Isolated showers.
.FRIDAY...East southeast winds 15 to 20 knots. Seas 3 to 4 feet.
Isolated showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: East southeast 3 feet at 4 seconds. Isolated showers.
.SATURDAY...East winds 15 to 20 knots, easing to 10 to 15 knots
after midnight. Seas 4 to 6 feet. Wave Detail: East 3 feet at
4 seconds, north northwest 3 feet at 13 seconds and east 3 feet
at 16 seconds. Isolated showers through the night, then scattered
showers through the day.
.SUNDAY...East winds 10 to 15 knots. Seas 5 to 7 feet. Wave
Detail: Northwest 5 feet at 18 seconds and east 3 feet at
13 seconds. Scattered showers.

$$

PHZ123-081400-
Big Island Leeward Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...South southeast winds 10 to 15 knots. Seas to 2 feet
or less. Isolated showers. Hazy after midnight.
.WEDNESDAY...South southeast winds 10 to 15 knots. Seas to 2 feet
or less. Hazy. Scattered showers in the morning. Isolated showers
in the afternoon.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas to 2 feet
or less. Hazy in the evening. Isolated showers.
.THURSDAY...Southeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. Seas to 3 feet. Isolated showers.
.THURSDAY NIGHT...East southeast winds 15 to 20 knots. Seas 3 to
4 feet. Isolated showers.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 4 feet. Wave
Detail: Southeast 3 feet at 5 seconds. Isolated showers.
.FRIDAY NIGHT...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 5 seconds. Isolated showers.
.SATURDAY...East winds 15 to 20 knots. Seas 4 to 6 feet. Wave
Detail: East 3 feet at 5 seconds. Isolated showers.
.SUNDAY...Northeast winds 15 to 20 knots, veering to east
southeast. Seas 4 to 6 feet. Wave Detail: Northwest 3 feet at
18 seconds. Isolated showers through the night, then scattered
showers through the day.

$$

PHZ124-081400-
Big Island Southeast Waters-
305 PM HST Tue Oct 7 2025

.TONIGHT...East southeast winds 7 to 10 knots. Seas to 2 feet or
less. Isolated showers this evening, then scattered showers after
midnight.
.WEDNESDAY...South southeast winds to 10 knots. Seas to 2 feet or
less. Isolated showers in the morning.
.WEDNESDAY NIGHT...East southeast winds 10 to 15 knots. Seas to
2 feet or less. Isolated showers in the evening, then scattered
showers after midnight.
.THURSDAY...East winds 10 to 15 knots. Seas to 3 feet. Scattered
showers.
.THURSDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 4 feet.
Scattered showers.
.FRIDAY...East winds 15 to 20 knots. Seas 3 to 5 feet. Wave
Detail: East southeast 3 feet at 4 seconds. Isolated showers.
.FRIDAY NIGHT...East northeast winds 15 to 20 knots. Seas 4 to
5 feet. Wave Detail: East 4 feet at 4 seconds. Scattered showers.
.SATURDAY...East northeast winds to 20 knots. Seas 4 to 6 feet.
Wave Detail: East 4 feet at 5 seconds and east 3 feet at
16 seconds. Scattered showers in the morning, then isolated
showers in the afternoon. Scattered showers through the day.
.SUNDAY...East northeast winds 15 to 20 knots. Seas to 6 feet.
Wave Detail: East northeast 3 feet at 4 seconds, east 3 feet at
13 seconds and northwest 3 feet at 18 seconds. Scattered showers.

$$