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Surf Forecasts:

Waialua Rivermouth surfForecast / HAW – Molokai / USA

information circle12 Day Weather and Surf, issued 1 am Thursday 18 Sep 2025 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
26.8° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Waialua Rivermouth this week:

The most powerful waves expected at Waialua Rivermouth in the next 12 days are 1.9m 8s and forecast to arrive on Sunday (Sep 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 15s period and expected on Sunday (Sep 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Sun 21st Sep)6ft (1.9m) 8s

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

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

Short Range Forecast Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 26°C on Thu morning, min 25°C on Thu morning). Mainly fresh winds.

Days 3-6 Weather Summary Some drizzle, heaviest during Tue morning. Warm (max 25°C on Sun morning, min 24°C on Mon night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
See all maps
Wave Height (m) & direction (?)
1.7
E
1.4
E
0.7
N
0.8
N
1.2
ENE
1.1
ENE
1.8
ENE
1.9
ENE
1.9
ENE
1.8
ENE
1.7
ENE
1.7
ENE
1.7
ENE
1.7
ENE
1.3
NE
1.4
ENE
1.7
ENE
1.3
ENE
1.2
ENE
1
ENE
1.1
ENE
Period(s) (?)66111177677889988877777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)218130125146153121244330348423374442397379216236286183144105107
Wind
(km/h)
35
ENE
30
ENE
25
E
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
E
25
ENE
25
ENE
20
E
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
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
/ height (m)
1:12PM
0.69
1:33AM
0.41
1:46PM
0.67
2:10AM
0.47
2:15PM
0.62
2:44AM
0.52
2:42PM
0.58
3:19AM
0.56
3:07PM
0.52
3:52AM
0.59
3:32PM
0.46
4:27AM
0.60
3:56PM
0.40
Low Tide
/ height (m)
8:17PM
0.07
7:20AM
0.07
8:38PM
0.06
8:06AM
0.09
8:58PM
0.06
8:50AM
0.11
9:16PM
0.05
9:33AM
0.13
9:34PM
0.05
10:18AM
0.16
9:53PM
0.06
11:07AM
0.19
10:13PM
0.07
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:13--6:13--6:15--6:15--6:15--6:15--6:16--
Sunset-6:27--6:25--6:24--6:23--6:22--6:22--6:21-
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
Rain (mm)
----111--------1-----
Temp. °C262625252525252625252525252525252525252525
Feels °C (?)242424242424242524242424242424242323242424
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Molokai

  1. weather stationWind Update Continuing clean conditions at Waialua Rivermouth (calm at Wailuku Heights wx 35 km from Waialua Rivermouth). 1.3m 6s windswell from the E with a 0.5m 8s swell from the N. 2 swells combining to make bigger set waves.

    2 hours 58 minutes ago Waialua Rivermouth
Expand
<
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View all

35 km away, 2 h 58 min ago

0 km/h
N
0.0
26.8
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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:
surf-forecast.com

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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