Waialua Rivermouth surfForecast / HAW – Molokai / USA

information circle48hr Weather and Surf, issued 7 pm Wednesday 20 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 11PM is: 3.0m 8s primary swell from a East-northeast direction and 0.6m 11s secondary swell from a North-northwest direction (forecast issued at 07:00pm May 20). An open ocean swell of 0.3m 14s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)8ft (2.5m)8s
Evening (20 May)8ft (2.5m)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 Sat morning. Warm (max 24°C on Thu morning, min 23°C on Wed night). Mainly strong winds.

Wed
20
Thursday
21
Friday
22
Sat
23
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
2 AM
5 AM
8 AM
11 AM
2 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
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.5
ENE
8
2.5
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
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
2.5
ENE
8
2.5
ENE
8
Wave Graph
Metric surfscale
Energy kJ
867
915
984
1019
936
984
1081
1051
1193
1194
1147
1072
1051
934
891
827
857
958
989
919
817
817
958
1018
Wind (km/h)
35
ENE
35
ENE
40
ENE
40
ENE
40
E
35
E
40
ENE
40
ENE
40
ENE
45
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
40
ENE
35
ENE
40
ENE
40
ENE
40
ENE
40
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
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
High Tide
6:39PM0.69m
7:30AM0.17m
7:35PM0.63m
9:07AM0.22m
8:31PM0.57m
10:26AM0.30m
Low Tide
2:48AM0.00m
12:03PM0.05m
3:38AM-0.00m
1:28PM0.12m
4:19AM-0.01m
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
rain showers
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>
6:59
7:00
7:00
7:00
1
Temp °C
24
23
23
23
23
23
24
24
23
23
23
23
23
23
23
23
23
23
23
23
23
23
24
23
21
20
19
18
18
18
19
19
18
17
17
18
18
18
17
18
17
18
18
18
18
17
18
17
Swell 1
Height (m)
Direction
Period (s)
0.5
NNW
11
0.6
NNW
11
0.6
NNW
11
0.5
NNW
10
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
Energy kJ
66
75
75
63
42
34
19
24
24
24
24
23
25
25
25
41
45
57
57
57
56
55
52
171
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
14
0.2
SSW
13
0.3
SSW
14
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
0.3
SSW
16
0.2
SSW
16
0.3
NNW
18
0.4
NW
16
0.5
NW
10
Energy kJ
37
18
36
49
64
50
24
24
22
43
42
21
21
21
20
20
19
18
29
52
26
61
69
51
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
10
0.2
SSW
17
0.1
SW
18
0.2
SSW
13
0.2
WNW
9
0.2
WNW
9
0.1
NW
9
0.1
SW
12
0.1
S
12
0.1
S
12
0.1
SW
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
0.1
NW
19
0.2
NNW
18
0.2
SSW
16
0.2
SSW
16
0.2
SSW
16
Energy kJ
10
27
12
17
8
8
3
6
3
3
6
6
3
3
31
31
30
30
17
15
32
25
25
25
Wind waves
Height (m)
Direction
Period (s)
2.5
ENE
8
2.5
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
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
2.5
ENE
8
2.5
ENE
8
Energy kJ
867
915
984
1019
936
984
1081
1051
1193
1194
1147
1072
1051
934
891
827
857
958
989
919
817
817
958
1018
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
1
2
1
1
1
1
1
1
Distance (km)
28
23
23
23
27
27
25
25
51
25
3725
27
163
27
27
27
51
181
176
27
23
23
23
25
Best forecast wave conditions in Molokai
Rating
(10 max)
Best forecast wave conditions in United States
Rating
(10 max)
1
1
1
3
3
4
3
2
3
1
4
3
4
3
2
2
2
2
2
2
2
2
2
1
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
4
4
5
7
8
7
6
5
5
6
7
7
8
8
7
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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