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(1/5)
Latest Coastal Waters Forecast by PHFO
Issued 8/20/2026 3:21 PM US/Hawaii.
Valid through 8/21/2026 4:15 AM US/Hawaii.
fzhw50 phfo 210121
cwfhfo
expires:202608211415;;080890
coastal waters forecast
national weather service honolulu hi
321 pm hst thu aug 20 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz117-211415-
maui county windward waters-
321 pm hst thu aug 20 2026
.tonight...east winds 7 to 10 knots, veering to east southeast
10 to 15 knots after midnight. seas 3 to 4 feet. scattered
showers.
.friday...east southeast winds 15 to 20 knots. seas 4 to 5 feet.
wave detail: east 4 feet at 6 seconds. scattered showers in the
morning. isolated showers in the afternoon.
.friday night...east winds 15 to 20 knots. seas 4 to 6 feet. wave
detail: east southeast 4 feet at 6 seconds.
.saturday...east winds 20 to 25 knots, rising to 25 to 30 knots
in the afternoon. seas 5 to 6 feet. wave detail: east 5 feet at
7 seconds.
.saturday night...east winds 25 to 30 knots. seas 6 to 8 feet.
wave detail: east 7 feet at 7 seconds and southeast 4 feet at
10 seconds.
.sunday...east northeast winds 25 to 30 knots. seas 7 to 8 feet.
wave detail: east southeast 7 feet at 7 seconds and southeast
4 feet at 10 seconds. scattered showers.
.sunday night...east winds 25 to 30 knots. seas 7 to 8 feet. wave
detail: east southeast 7 feet at 7 seconds and southeast 4 feet
at 10 seconds. scattered showers.
.monday...east winds 25 to 30 knots, easing to 20 to 25 knots
after midnight. seas 6 to 8 feet. wave detail: east southeast
7 feet at 8 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 in the
morning, then isolated showers in the afternoon. isolated showers
after midnight.
$$
(2/5)
Latest Coastal Waters Forecast by PHFO
Issued 8/20/2026 3:21 PM US/Hawaii.
Valid through 8/21/2026 4:15 AM US/Hawaii.
fzhw50 phfo 210121
cwfhfo
expires:202608211415;;080891
coastal waters forecast
national weather service honolulu hi
321 pm hst thu aug 20 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz118-211415-
maui county leeward waters-
321 pm hst thu aug 20 2026
.tonight...east northeast winds 10 to 15 knots, veering to east
7 to 10 knots after midnight. seas 3 to 5 feet.
.friday...north northeast winds 7 to 10 knots, backing to north
10 to 15 knots in the afternoon. seas 4 to 5 feet. wave detail:
southwest 3 feet at 16 seconds.
.friday night...east northeast winds 15 to 20 knots. seas 4 to
6 feet. wave detail: southwest 3 feet at 16 seconds.
.saturday...northeast winds 10 to 15 knots, becoming east
northeast 15 to 20 knots in the afternoon. seas 4 to 6 feet. wave
detail: east 4 feet at 6 seconds and southwest 3 feet at
16 seconds.
.saturday night...east northeast winds 20 to 25 knots. seas 4 to
6 feet. wave detail: east 5 feet at 7 seconds and southwest
3 feet at 15 seconds.
.sunday...northeast winds 20 to 25 knots, becoming east northeast
25 to 30 knots in the afternoon. seas 5 to 7 feet. wave detail:
east 6 feet at 8 seconds.
.sunday night...east northeast winds 25 to 30 knots, easing to
20 to 25 knots after midnight. seas 5 to 7 feet. wave detail:
east 6 feet at 8 seconds. isolated showers.
.monday...east northeast winds 20 to 25 knots, easing to 15 to
20 knots after midnight. seas 4 to 6 feet. wave detail: east
southeast 5 feet at 6 seconds and south southwest 3 feet at
12 seconds. isolated showers in the morning, then scattered
showers.
.tuesday...east northeast winds 15 to 20 knots. seas 3 to 5 feet.
wave detail: east southeast 4 feet at 6 seconds and south
southwest 3 feet at 15 seconds. scattered showers in the morning.
$$
(3/5)
Latest Coastal Waters Forecast by PHFO
Issued 8/20/2026 3:21 PM US/Hawaii.
Valid through 8/21/2026 4:15 AM US/Hawaii.
fzhw50 phfo 210121
cwfhfo
expires:202608211415;;080892
coastal waters forecast
national weather service honolulu hi
321 pm hst thu aug 20 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz119-211415-
maalaea bay-
321 pm hst thu aug 20 2026
.tonight...north winds 15 to 20 knots. seas to 3 feet.
.friday...north winds 15 to 20 knots. seas to 3 feet.
.friday night...north northeast winds 15 to 20 knots. seas to
3 feet in the evening, then to 2 feet or less.
.saturday...northeast winds 15 to 20 knots. seas to 2 feet or
less. wave detail: north northeast 2 feet at 3 seconds.
.saturday night...northeast winds 20 to 25 knots. seas to 2 feet
or less. wave detail: north northeast 2 feet at 3 seconds.
.sunday...northeast winds 25 to 35 knots. seas to 3 feet. wave
detail: north northeast 3 feet at 4 seconds.
.sunday night...northeast winds 30 to 35 knots, easing to 20 to
25 knots after midnight. seas 3 to 4 feet. wave detail: north
northeast 4 feet at 4 seconds. isolated showers.
.monday...east northeast winds 15 to 20 knots, becoming northeast
20 to 25 knots. seas to 3 feet. wave detail: northeast 3 feet at
3 seconds. isolated showers in the morning, then scattered
showers.
.tuesday...northeast winds 15 to 20 knots, becoming east
northeast 10 to 15 knots in the afternoon and evening, then
becoming northeast 15 to 20 knots after midnight. seas to 3 feet.
scattered showers in the morning.
$$
(4/5)
Latest Coastal Waters Forecast by PHFO
Issued 8/20/2026 3:21 PM US/Hawaii.
Valid through 8/21/2026 4:15 AM US/Hawaii.
fzhw50 phfo 210121
cwfhfo
expires:202608211415;;080893
coastal waters forecast
national weather service honolulu hi
321 pm hst thu aug 20 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz120-211415-
pailolo channel-
321 pm hst thu aug 20 2026
.tonight...east northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. seas to 3 feet.
.friday...east northeast winds 15 to 20 knots. seas 3 to 4 feet.
.friday night...east northeast winds 15 to 20 knots. seas 3 to
4 feet.
.saturday...east northeast winds 15 to 20 knots, rising to 20 to
25 knots in the afternoon. seas 3 to 4 feet. wave detail: east
4 feet at 4 seconds.
.saturday night...east northeast winds 25 to 30 knots. seas 3 to
5 feet. wave detail: east 4 feet at 4 seconds.
.sunday...east northeast winds 20 to 25 knots, rising to 25 to
35 knots in the afternoon. seas 4 to 6 feet. wave detail: east
5 feet at 5 seconds. scattered showers in the afternoon.
.sunday night...east northeast winds 25 to 35 knots. seas 4 to
6 feet. wave detail: east 5 feet at 5 seconds. scattered showers.
.monday...east northeast winds 20 to 25 knots, easing to 15 to
20 knots after midnight. seas 4 to 6 feet. wave detail: east
4 feet at 7 seconds. scattered showers.
.tuesday...east northeast winds 15 to 20 knots, rising to 20 to
25 knots in the afternoon and evening, easing to 15 to 20 knots
after midnight. seas 3 to 4 feet. wave detail: east 4 feet at
6 seconds. scattered showers in the morning.
$$
(5/5)
Latest Coastal Waters Forecast by PHFO
Issued 8/20/2026 3:21 PM US/Hawaii.
Valid through 8/21/2026 4:15 AM US/Hawaii.
fzhw50 phfo 210121
cwfhfo
expires:202608211415;;080894
coastal waters forecast
national weather service honolulu hi
321 pm hst thu aug 20 2026
hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.
phz121-211415-
alenuihaha channel-
321 pm hst thu aug 20 2026
.tonight...east northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. seas 3 to 4 feet. scattered showers.
.friday...east northeast winds 15 to 20 knots. seas 4 to 5 feet.
wave detail: east 3 feet at 5 seconds. scattered showers in the
morning.
.friday night...east northeast winds 20 to 25 knots. seas 4 to
6 feet. wave detail: east 4 feet at 5 seconds and southwest
3 feet at 16 seconds.
.saturday...east northeast winds 20 to 25 knots, rising to 25 to
30 knots in the afternoon. seas 5 to 7 feet. wave detail: east
6 feet at 6 seconds and southwest 3 feet at 16 seconds.
.saturday night...east northeast winds 25 to 35 knots. seas 6 to
9 feet. wave detail: east 8 feet at 7 seconds and southwest
3 feet at 15 seconds. isolated showers.
.sunday...east northeast winds 25 to 35 knots, rising to 30 to
40 knots in the afternoon. seas 7 to 10 feet. wave detail: east
9 feet at 7 seconds. scattered showers in the morning. numerous
showers in the afternoon.
.sunday night...east northeast winds 30 to 40 knots, easing to
25 to 35 knots after midnight. seas 7 to 10 feet. wave detail:
east 9 feet at 7 seconds. scattered showers.
.monday...east northeast winds 25 to 30 knots. seas 5 to 8 feet.
wave detail: east 7 feet at 7 seconds and south southwest 3 feet
at 13 seconds. scattered showers.
.tuesday...east northeast winds 20 to 25 knots, rising to 25 to
30 knots in the afternoon, easing to 20 to 25 knots. seas 5 to
6 feet. wave detail: east northeast 6 feet at 6 seconds and south
southwest 3 feet at 15 seconds. scattered showers in the morning.
isolated showers after midnight.
$$
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