Waialua Rivermouth Surf Break

Lat Long: 21.10° N 156.76° W

Waialua Rivermouth 48 hour detailed Surf Forecast

Issued: 7 am 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waialua Rivermouth sea temperature is
26.3° C
0.3° 

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 (16 Jul):

  • Morning surf: Morning surf (16 Jul, local time) - 2.5ft (0.8m), 7s period with NNE swell.
  • Afternoon surf: Afternoon surf (16 Jul, local time) - 4.5ft (1.4m), 6s period with E swell.
  • Evening surf: Evening surf (16 Jul, local time) - 4.5ft (1.4m), 6s period with ENE swell.

The current surf forecast for Waialua Rivermouth at 11AM is: 1.2m 5s primary swell from a East direction and 0.8m 7s secondary swell from a North-northeast direction (forecast issued at 07:00am July 16). An open ocean swell of 0.6m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (16 Jul)2.5ft (0.8m)7s
Afternoon (16 Jul)4.5ft (1.4m)6s
Evening (16 Jul)4.5ft (1.4m)6s

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds.

Thursday
16
Friday
17
Saturday
18
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
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)
1.3
ENE
7
0.8
NNE
7
1.2
E
5
1.4
E
6
1.7
ENE
6
1.4
ENE
6
1.4
E
6
1.4
ENE
6
1.5
ENE
6
1.4
ENE
6
1.3
ENE
6
1.3
ENE
6
1.4
E
6
1.6
E
6
1.6
E
6
1.7
E
6
1.7
E
6
1.6
E
6
1.8
E
7
1.9
ENE
8
2
E
8
1.9
ENE
8
1.8
ENE
8
Wave Graph
Metric surfscale
Energy kJ
178
68
73
121
198
145
137
145
177
139
134
139
151
184
188
212
221
206
280
416
459
473
437
Wind (km/h)
20
E
25
E
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
20
ENE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
25
E
30
E
30
E
30
E
30
ENE
30
ENE
30
ENE
30
ENE
25
E
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
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
High Tide
4:31AM0.30m
4:54PM0.75m
5:29AM0.34m
5:31PM0.67m
6:33AM0.38m
6:06PM0.58m
Low Tide
9:59AM0.01m
00:17AM0.02m
10:52AM0.08m
00:50AM0.03m
11:52AM0.16m
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:10
7:10
 mm
1
Temp °C
24
25
25
26
26
25
25
24
24
25
25
25
25
25
25
25
24
25
25
25
25
24
24
Feels °C
23
25
24
25
25
24
25
24
24
24
24
24
24
25
25
24
22
24
23
23
23
22
23
  • 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
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