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Surf Forecasts:

Waialua Rivermouth surfForecast / HAW – Molokai / USA

information circle12 Day Weather and Surf, issued 1 pm Thursday 12 Mar 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
24.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Waialua Rivermouth this week:

The surf forecast for Waialua Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Mar 16) at 8PM. The primary swell is predicted to be 0.8m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Waialua Rivermouth in the next 12 days are 2.1m 13s and forecast to arrive on Tuesday (Mar 17) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Saturday (Mar 14) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 16th Mar)2.5ft (0.8m) 10s
Best Surf 2PM (Tue 17th Mar)6ft (1.9m) 14s
Most Powerful 5PM (Tue 17th Mar)7ft (2.1m) 13s

Table - best surf conditions forecast for Waialua Rivermouth over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 141mm), heaviest during Fri night. Warm (max 25°C on Sat morning, min 21°C on Thu afternoon). Winds increasing (light winds from the SE on Thu night, near gales from the SSW by Fri night).

Days 3-6 Weather Summary Heavy rain (total 50mm), heaviest during Tue afternoon. Warm (max 25°C on Sun afternoon, min 21°C on Tue morning). Winds decreasing (strong winds from the SSW on Sun afternoon, calm by Tue afternoon).

Thu
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
3
3
4
4
3
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
ENE
0.7
ENE
1.6
SSW
0.9
E
0.8
E
1
E
0.8
N
0.8
N
0.9
NW
0.6
N
0.7
ESE
0.9
NW
0.8
NW
0.7
NW
1.3
NW
2.1
NNW
2
NNW
2
NNW
1.9
NNW
2
NNW
1.8
NNW
Period(s) (?)88588812121111810101111131214131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)965612710076147190177166947014511311942914491189144912551178944
Wind
(km/h)
15
SSE
30
S
40
S
50
SSW
60
SSW
45
SSW
50
SSW
45
SSW
45
SSW
35
SSW
25
SSW
25
SSW
15
SW
10
W
10
WNW
5
NE
5
ENE
5
S
5
NNW
15
NNE
30
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		crosscrossglassoffcross-
off		cross-
off
High Tide
/ height (m)
11:40PM
0.51
12:02PM
0.17
12:22AM
0.54
12:38PM
0.21
12:58AM
0.57
1:13PM
0.27
1:31AM
0.58
1:48PM
0.33
2:02AM
0.56
2:25PM
0.40
2:33AM
0.53
3:04PM
0.47
3:04AM
0.48
Low Tide
/ height (m)
3:58PM
0.04
7:33AM
0.03
5:10PM
0.02
7:51AM
0.01
6:05PM
-0.01
8:10AM
-0.01
6:53PM
-0.03
8:29AM
-0.02
7:40PM
-0.04
8:49AM
-0.04
8:28PM
-0.03
9:10AM
-0.06
9:18PM
-0.02
9:33AM
-0.08
Thu
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise--6:37--6:35--6:35--6:33--6:33--6:33--6:31
Sunset6:35--6:35--6:36--6:36--6:36--6:37--6:37--
thunderstorm
heavy rain
heavy rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
light rain
heavy rain
mod rain
light rain
rain showers
rain showers
rain showers
Rain (mm)
221311263999842533951463432
Temp. °C222322222425252525252424252322212222232222
Feels °C (?)202318181719202021212323252525242424262221
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waialua Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Waialua Rivermouth at:
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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 12 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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