Waialua Rivermouth surfForecast / HAW – Molokai / USA

information circle48hr Weather and Surf, issued 1 am Thursday 21 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 normal for this time of year)

How big are the waves at Waialua Rivermouth today?

The current surf forecast for Waialua Rivermouth at 7AM is: 3.0m 8s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a North-northwest direction (forecast issued at 01:00am May 21). An open ocean swell of 0.3m 16s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (21 May)10ft (3.0m)8s
Afternoon (21 May)10ft (3.0m)8s
Evening (21 May)10ft (3.0m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Fri night. Warm (max 24°C on Thu morning, min 23°C on Thu morning). Mainly strong winds.

Thursday
21
Friday
22
Saturday
23
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 MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
2.5
ENE
9
2.5
ENE
9
2.5
ENE
8
2.4
ENE
8
2.5
ENE
8
2.5
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
1003
960
984
1081
1098
1140
1168
1094
1047
1024
953
891
827
949
949
989
857
857
817
993
1043
1003
903
903
Wind (km/h)
40
E
40
E
35
E
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
40
ENE
40
ENE
40
ENE
40
ENE
45
ENE
40
ENE
40
ENE
35
ENE
40
ENE
40
ENE
45
ENE
45
ENE
40
ENE
35
ENE
35
ENE
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
High Tide
7:30AM0.17m
7:35PM0.63m
9:07AM0.22m
8:31PM0.57m
10:26AM0.30m
9:25PM0.50m
Low Tide
2:48AM0.00m
12:03PM0.05m
3:38AM-0.00m
1:28PM0.12m
4:19AM-0.01m
3:12PM0.17m
rain showers
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:46
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:00
1
1
Temp °C
23
23
23
24
24
23
23
23
23
23
23
23
24
23
23
23
23
23
23
23
23
23
23
23
19
19
19
19
19
18
18
17
18
18
18
18
19
17
18
18
19
18
17
17
17
17
18
19
Swell 1
Height (m)
Direction
Period (s)
0.4
NNW
11
0.4
NNW
10
0.4
NNW
10
0.3
NNW
10
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NW
9
0.4
NW
10
0.4
NW
10
0.4
NW
10
0.4
NNW
10
0.4
NNW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.5
NW
11
0.5
NW
10
0.6
NNW
16
0.6
NNW
16
0.7
NNW
15
0.7
NW
14
Energy kJ
44
42
34
19
24
24
24
24
23
25
25
25
41
45
57
57
57
56
55
53
171
160
188
211
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
16
0.4
SW
16
0.3
SSW
16
0.2
SSW
16
0.2
SSW
16
0.2
SSW
15
0.3
SSW
15
0.3
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
17
0.2
SSW
16
0.2
SSW
16
0.3
NNW
18
0.4
NW
16
0.5
NW
10
0.4
NNW
10
0.4
NW
10
0.4
NW
10
Energy kJ
49
64
50
24
24
22
43
42
21
21
21
20
20
19
18
29
26
26
61
69
51
40
26
25
Swell 3
Height (m)
Direction
Period (s)
0.3
NW
9
0.2
WNW
9
0.2
WNW
9
0.1
NW
9
0.2
SSW
13
0.1
S
12
0.1
S
12
0.1
S
12
0.1
SW
12
0.1
S
12
0.1
S
12
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.2
SSW
13
0.2
SSW
13
0.2
NNW
18
0.2
SSW
16
0.2
SSW
16
0.2
SSW
16
0.3
SSW
16
0.3
SSW
15
0.2
SSW
15
Energy kJ
13
8
8
3
16
3
3
3
6
3
3
31
31
30
30
17
17
32
25
25
25
48
44
21
Wind waves
Height (m)
Direction
Period (s)
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
3
ENE
8
2.5
ENE
9
2.5
ENE
9
2.5
ENE
8
2.4
ENE
8
2.5
ENE
8
2.5
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
Energy kJ
1003
960
984
1081
1098
1140
1168
1094
1047
1024
953
891
827
949
949
989
857
857
817
993
1043
1003
903
903
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
3
3
1
1
1
1
1
2
3
1
1
1
1
Distance (km)
25
25
25
42
25
27
174
27
23
27
27
313
316
174
163
163
25
25
181
322
178
25
25
23
Best forecast wave conditions in Molokai
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
4
3
3
1
1
2
3
3
3
3
2
3
3
2
2
4
2
2
2
3
2
2
3
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
5
5
6
  • 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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