Waialua Rivermouth Surf Break

Lat Long: 21.10° N 156.76° W

Waialua Rivermouth 48 hour detailed Surf Forecast

Issued: 1 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waialua Rivermouth sea temperature is
26.6° C
0.2° 

Waialua Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Waialua Rivermouth today (09 Aug):

  • Morning surf: Morning surf (09 Aug, local time) - 6ft (1.8m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (09 Aug, local time) - 5.5ft (1.7m), 8s period with E swell.
  • Evening surf: Evening surf (09 Aug, local time) - 6ft (1.8m), 8s period with ENE swell.

The current surf forecast for Waialua Rivermouth at 6AM is: 1.8m 7s primary swell from a East direction (forecast issued at 01:00am August 09). An open ocean swell of 0.4m 17s is not directed at the surf break, a second open ocean swell of 0.4m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (09 Aug)6ft (1.8m)7s
Afternoon (09 Aug)5.5ft (1.7m)8s
Evening (09 Aug)6ft (1.8m)8s

Table - waves today at Waialua Rivermouth. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 26°C on Sun morning, min 25°C on Sun morning). Mainly fresh winds.

Sunday
9
Monday
10
Tuesday
11
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
ENE
6
1.8
ENE
7
1.8
E
7
1.8
ENE
7
1.7
E
8
1.7
ENE
8
1.7
ENE
8
1.9
E
8
1.9
ENE
8
1.9
E
8
1.8
E
8
1.7
E
8
1.7
E
8
1.7
E
8
1.7
E
7
1.8
E
7
1.7
E
7
1.7
E
6
1.8
E
6
1.7
E
6
1.6
E
7
1.5
E
7
1.5
E
7
1.7
E
6
Wave Graph
Metric surfscale
Energy kJ
282
317
338
365
337
383
383
453
461
453
397
329
365
337
311
348
311
232
259
239
264
239
239
190
Wind (km/h)
30
E
25
E
30
E
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
E
25
ENE
25
E
25
ENE
30
ENE
25
ENE
30
ENE
25
E
25
E
25
E
25
E
25
E
30
ENE
25
ENE
30
ENE
25
E
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:56PM0.23m
1:06PM0.80m
00:57AM0.26m
1:51PM0.82m
1:48AM0.30m
2:32PM0.82m
Low Tide
5:35AM-0.02m
8:47PM0.08m
6:34AM-0.03m
9:18PM0.06m
7:28AM-0.04m
9:49PM0.05m
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
6:59
 mm
1
1
Temp °C
25
25
25
26
25
25
25
25
25
25
26
26
26
26
26
26
26
25
26
26
26
26
25
25
Feels °C
24
24
24
25
24
24
24
24
24
24
26
26
25
25
25
25
25
24
25
24
25
25
23
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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