Waialua Rivermouth surfForecast / HAW – Molokai / USA

information circle16 Day Weather and Surf, issued 7 pm Tuesday 12 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waialua Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waialua Rivermouth sea temperature is
25.4° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Waialua Rivermouth this week:

The most powerful waves expected at Waialua Rivermouth in the next 16 days are 1.4m 14s and forecast to arrive on Thursday (May 14) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 16s period and expected on Friday (May 15) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Thu 14th May)4.5ft (1.4m) 14s

Table - best surf conditions forecast for Waialua Rivermouth over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Fri afternoon. Warm (max 25°C on Fri morning, min 23°C on Tue night). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Fri night. Warm (max 25°C on Sun morning, min 23°C on Fri night). Mainly fresh winds.

Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Monday
18
Tue
19
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
E
6
1.8
E
6
2
E
6
2
E
7
1
NW
15
1.3
NW
15
1.4
NW
14
1.2
NW
13
1.9
E
8
1.8
E
8
1.9
ENE
8
1.8
ENE
8
1.9
E
8
1.9
E
8
1.8
E
8
1.9
E
8
1.8
E
8
1.7
E
8
1.7
E
8
1.5
E
8
1.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
357
267
339
416
441
685
661
486
458
428
485
448
447
493
461
501
443
393
374
294
264
Wind (km/h)
35
E
30
ENE
30
ENE
30
E
25
E
25
E
25
E
25
E
25
ENE
25
E
25
E
25
ENE
20
ENE
25
E
25
E
25
E
25
E
30
ENE
25
E
30
ENE
25
ENE
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
cross-on
cross-on
cross-on
High Tide
11:49PM0.40m
1:09PM0.59m
00:34AM0.34m
1:49PM0.67m
1:20AM0.29m
2:30PM0.74m
2:06AM0.24m
3:15PM0.78m
2:54AM0.20m
4:01PM0.79m
3:46AM0.17m
4:51PM0.78m
4:45AM0.15m
5:43PM0.74m
Low Tide
6:26AM-0.07m
7:50PM0.09m
6:54AM-0.10m
8:50PM0.06m
7:25AM-0.12m
9:49PM0.03m
8:00AM-0.13m
10:48PM0.02m
8:38AM-0.12m
11:47PM0.01m
9:20AM-0.11m
00:48AM0.01m
10:06AM-0.07m
clear
clear
clear
clear
part cloud
clear
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:48
5:48
5:48
5:48
5:48
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:57
6:57
6:58
6:58
6:59
6:59
3
4
11
Temp °C
24
24
24
24
24
24
24
25
25
24
24
24
24
25
25
24
24
24
24
24
24
21
21
21
21
22
22
22
24
23
22
24
23
24
25
25
23
23
23
22
23
22
Swell 1
Height (m)
Direction
Period (s)
0.9
NNW
10
0.8
NNW
10
0.5
NW
9
0.6
NW
16
1
NW
15
1.3
NW
15
1.4
NW
14
1.2
NW
13
1.1
NW
12
0.9
NW
12
0.6
NW
11
0.6
NW
11
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.4
NNW
10
0.4
SW
14
0.4
SSW
14
0.5
NW
12
0.5
NW
11
0.5
NW
11
Energy kJ
154
103
41
219
441
685
661
486
336
199
97
96
73
69
65
35
51
79
69
58
57
Swell 2
Height (m)
Direction
Period (s)
0.2
N
12
0.2
SSW
15
0.4
N
9
0.4
N
8
0.5
N
8
0.4
N
8
0.4
N
8
0.3
SW
16
0.3
SW
16
0.3
SW
16
0.4
SW
15
0.4
SW
15
0.3
SW
14
0.4
SSW
15
0.4
SW
15
0.4
SW
14
0.4
NW
9
0.4
NW
13
0.4
SW
14
0.4
SW
14
0.4
SW
14
Energy kJ
12
23
25
22
34
22
22
40
40
41
59
57
33
84
55
52
21
45
47
52
53
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
S
14
0.2
SSW
15
0.4
NW
9
0.4
NW
9
0.2
SSW
14
0.3
SW
16
0.3
N
8
0.3
N
8
0.3
NNW
15
0.3
NNW
13
0.1
NW
13
0.1
SW
24
0.1
NW
19
0.3
SW
21
0.2
NNW
15
0.3
SW
19
0.3
SW
19
0.2
SSW
16
0.3
SW
18
0.2
SSW
18
Energy kJ
10
4
21
29
20
19
43
12
11
42
35
7
22
14
72
23
59
59
27
49
31
Wind waves
Height (m)
Direction
Period (s)
2.1
E
6
1.8
E
6
2
E
6
2
E
7
1.7
ENE
7
1.7
E
8
1.8
E
8
1.8
E
8
1.9
E
8
1.8
E
8
1.9
ENE
8
1.8
ENE
8
1.9
E
8
1.9
E
8
1.8
E
8
1.9
E
8
1.8
E
8
1.7
E
8
1.7
E
8
1.5
E
8
1.4
ENE
8
Energy kJ
357
267
339
416
327
329
401
401
458
428
485
448
447
493
461
501
443
393
374
294
264
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
2
2
1
1
1
1
1
2
1
2
1
1
1
1
1
Distance (km)
51
23
156
51
23
25
23
19
25
19
23
23
23
19
23
19
23
23
23
23
23
Best forecast wave conditions in Molokai
Rating
(10 max)
3
3
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
1
1
4
3
3
4
2
2
2
1
3
4
3
2
4
4
4
4
3
3
Header Global
Rating
(10 max)
9
8
9
5
5
5
5
5
5
5
7
4
5
5
4
6
4
5
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Waialua Rivermouth Surf forecast

The above surf forecast table for Waialua Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waialua Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Waialua Rivermouth surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Waialua Rivermouth) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Waialua Rivermouth may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a vacation in Molokai? If you are looking for accommodation near Waialua Rivermouth, camping, hotels and condos and appartments in Molokai, consider staying in Kaunakakai - Molokai which is 36 km (22 miles) away. Other places in and around Molokai where you can find information about places to rent, and car hire include Wailuku which is 36 km (22 miles) away, Kahului, Lanai - Lanai and Kihei.

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