fzhw50 phfo 211412
cwfhfo
expires:202608220315;;110758

coastal waters forecast
national weather service honolulu hi
412 am hst fri aug 21 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz113-220315-
kauai channel-
412 am hst fri aug 21 2026

.today...east southeast winds 7 to 10 knots this morning,
becoming variable less than 10 knots. seas 3 to 4 feet. 
.tonight...east northeast winds 10 to 15 knots. seas 3 to 5 feet.
wave detail: east 4 feet at 7 seconds. 
.saturday...east northeast winds 15 to 20 knots. seas 4 to
6 feet. wave detail: east 6 feet at 8 seconds. isolated showers
in the afternoon. 
.saturday night...east northeast winds 20 to 25 knots. seas 6 to
8 feet. wave detail: east 7 feet at 7 seconds. scattered showers.
.sunday...east northeast winds 20 to 25 knots, becoming northeast
25 to 30 knots in the afternoon. seas 6 to 8 feet, building to
8 to 9 feet in the afternoon. wave detail: east 8 feet at
7 seconds. scattered showers. 
.sunday night...east northeast winds 25 to 30 knots, easing to
20 to 25 knots after midnight. seas 8 to 9 feet. wave detail:
east 8 feet at 8 seconds. scattered showers. 
.monday...east northeast winds 20 to 25 knots, easing to 15 to
20 knots. seas 7 to 9 feet. wave detail: east 8 feet at 7 seconds
and south southwest 3 feet at 13 seconds. scattered showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 5 to 8 feet.
wave detail: east 7 feet at 7 seconds and south southwest 3 feet
at 15 seconds. scattered showers.  

$$

fzhw50 phfo 211412
cwfhfo
expires:202608220315;;110759

coastal waters forecast
national weather service honolulu hi
412 am hst fri aug 21 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz114-220315-
oahu windward waters-
412 am hst fri aug 21 2026

.today...east southeast winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: east 4 feet at 6 seconds. isolated showers this
afternoon. 
.tonight...east winds 10 to 15 knots, rising to 15 to 20 knots
after midnight. seas 3 to 4 feet, building to 4 to 6 feet after
midnight. wave detail: east 6 feet at 7 seconds. 
.saturday...east winds 15 to 20 knots. seas 6 to 8 feet. wave
detail: east southeast 7 feet at 8 seconds and west northwest
3 feet at 12 seconds. isolated showers in the afternoon. 
.saturday night...east winds 20 to 25 knots. seas 8 to 9 feet.
wave detail: east 8 feet at 8 seconds and west northwest 3 feet
at 12 seconds. scattered showers. 
.sunday...east northeast winds 20 to 25 knots. seas 8 to 10 feet.
wave detail: east southeast 9 feet at 9 seconds and west
northwest 3 feet at 11 seconds. scattered showers. 
.sunday night...east northeast winds 20 to 25 knots. seas 8 to
9 feet. wave detail: east southeast 9 feet at 8 seconds.
scattered showers. 
.monday...east northeast winds 20 to 25 knots, becoming east
15 to 20 knots. seas 8 to 9 feet. wave detail: east southeast
9 feet at 8 seconds. scattered showers. 
.tuesday...east winds 15 to 20 knots. seas 5 to 8 feet. wave
detail: east 8 feet at 8 seconds. scattered showers in the
morning, then isolated showers through the night. scattered
showers after midnight.  

$$

fzhw50 phfo 211412
cwfhfo
expires:202608220315;;110760

coastal waters forecast
national weather service honolulu hi
412 am hst fri aug 21 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz115-220315-
oahu leeward waters-
412 am hst fri aug 21 2026

.today...east southeast winds 7 to 10 knots, backing to east
10 to 15 knots this afternoon. seas 3 to 4 feet. 
.tonight...northeast winds 7 to 10 knots, veering to east
northeast 10 to 15 knots after midnight. seas 4 to 5 feet. wave
detail: east 4 feet at 7 seconds. 
.saturday...east northeast winds 10 to 15 knots, rising to 15 to
20 knots in the afternoon. seas 4 to 5 feet, building to 5 to
7 feet in the afternoon. wave detail: east 5 feet at 7 seconds.
isolated showers in the afternoon. 
.saturday night...east northeast winds 15 to 20 knots, rising to
20 to 25 knots after midnight. seas 5 to 8 feet. wave detail:
east 7 feet at 8 seconds. scattered showers. 
.sunday...east northeast winds 20 to 25 knots. seas 6 to 9 feet.
wave detail: east 8 feet at 8 seconds. scattered showers. 
.sunday night...east northeast winds 20 to 25 knots. seas 6 to
9 feet. wave detail: east 8 feet at 8 seconds. isolated showers. 
.monday...east northeast winds 15 to 20 knots, easing to 10 to
15 knots after midnight. seas 6 to 8 feet. wave detail: east
6 feet at 8 seconds and south southwest 3 feet at 13 seconds.
isolated showers in the morning, then scattered showers. 
.tuesday...east northeast winds 10 to 15 knots, rising to 15 to
20 knots. seas 5 to 7 feet. wave detail: east 5 feet at 7 seconds
and south southwest 3 feet at 15 seconds. scattered showers.  

$$

fzhw50 phfo 211412
cwfhfo
expires:202608220315;;110761

coastal waters forecast
national weather service honolulu hi
412 am hst fri aug 21 2026

hawaiian coastal waters within 40 nautical miles including the
hawaiian islands humpback whale national marine sanctuary.


phz116-220315-
kaiwi channel-
412 am hst fri aug 21 2026

.today...east northeast winds 7 to 10 knots, becoming 10 to
15 knots this afternoon. seas 3 to 4 feet. wave detail: east
4 feet at 6 seconds. 
.tonight...east northeast winds 15 to 20 knots. seas 4 to 6 feet.
wave detail: east 6 feet at 6 seconds. 
.saturday...east northeast winds 15 to 20 knots, rising to 20 to
25 knots in the afternoon. seas 5 to 6 feet, building to 5 to
8 feet in the afternoon. wave detail: east 7 feet at 7 seconds.
isolated showers in the afternoon. 
.saturday night...east northeast winds 20 to 25 knots, rising to
25 to 30 knots after midnight. seas 6 to 9 feet. wave detail:
east 8 feet at 7 seconds. scattered showers. 
.sunday...east northeast winds 25 to 30 knots. seas 7 to 10 feet.
wave detail: east northeast 9 feet at 7 seconds. scattered
showers. 
.sunday night...east northeast winds 25 to 30 knots, easing to
20 to 25 knots after midnight. seas 7 to 10 feet. wave detail:
east 9 feet at 7 seconds. isolated showers. 
.monday...east northeast winds 20 to 25 knots, easing to 15 to
20 knots. seas 6 to 9 feet. wave detail: east 9 feet at 7 seconds
and south southwest 3 feet at 13 seconds. isolated showers in the
morning, then scattered showers. 
.tuesday...east northeast winds 15 to 20 knots. seas 5 to 7 feet.
wave detail: east northeast 7 feet at 7 seconds and south
southwest 3 feet at 15 seconds. scattered showers in the morning,
then isolated showers through the night. scattered showers after
midnight.  

$$