Surf Forecasts:
Rivermouth_Wailuku surf forecast from 12 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 5PM (local time) - 6ft (1.9m), 8s period, ENE swell with 432 kJ wave energy.
Best Forecast Surf Conditions for Rivermouth_Wailuku this week:
The most powerful waves expected at Rivermouth_Wailuku in the next 16 days are 1.9m 8s and forecast to arrive on Sunday (Jul 12) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 15s period and expected on Wednesday (Jul 15) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sun 12th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Rivermouth_Wailuku over the next 16 days.
Alright crew, Rusty here. Let’s cut to it. This is a rough stretch. The only break in the game is Rivermouth_Wailuku, and it’s getting hammered by onshore, cross-on wind the whole time.
There’s no real standout session. The whole sixteen days is a struggle. It starts Saturday, July 11, with waves about 6 ft from the ENE at a short 7-second period. The combined energy is moderate at 270, but with the ENE wind blowing 12 mph straight across the face, it’s choppy and poor. Sunday the 12th shows a little more size – 6 ft from ENE at 8 seconds – but the wind picks up to 16 mph, and the energy climbs to 432, but it’s still a mess. Monday the 13th is more of the same: 6 ft, cross-on, choppy.
The wind eases a bit Tuesday the 14th and Wednesday the 15th, dropping to 9 mph, but it’s still cross-on, so the waves stay ragged. Swell drops to 4 ft by Wednesday. By Thursday the 16th, the period drops to 6 seconds – that’s pure windswell, no shape. The first week is a total wipeout.
We get a little bump on Sunday the 19th – 5 ft from ENE, 8 seconds, energy at 316 – but the wind is still cross-on at 12 mph. The next week isn’t much better. There’s a moment on Tuesday the 21st where the wind drops to 9 mph, and the swell is 5 ft with a 7-second period, and the energy is a solid 420, but it’s still “gentle cross-onshore and fairly choppy.” Not clean.
The best shot might be the very last day, Sunday, July 26. The wind drops to a light 6 mph from ENE, giving us “light cross-onshore with small wind ripples.” Waves are 4 ft from ENE at 7 seconds, energy at 240. It’s not good, but it’s the least bad. Water temp is 79°F, right on average for the time of year.
Sorry, gang. No magic window. This reef is exposed, but the wind is wrong for the whole 16 days. If you’re real keen, bring a kiteboard – with these conditions, that’s about all that’s gonna work. Otherwise, sit it out. It won’t stay this way forever.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 27°C on Sat afternoon, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue afternoon. Warm (max 27°C on Thu afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | NE 8 | NE 8 | NE 7 | ENE 7 | ENE 7 | NE 7 | E 6 | E 6 | ENE 7 | ENE 6 | ENE 7 | E 7 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 270 | 299 | 410 | 432 | 382 | 319 | 285 | 146 | 229 | 229 | 160 | 121 | 99 | 136 | 76 | 112 | 125 | 110 | 154 | 134 | 74 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | 11:19PM0.36m | 2:08PM0.90m | 00:31AM0.37m | 2:48PM0.93m | 1:30AM0.39m | 3:26PM0.94m | 2:24AM0.41m | 4:02PM0.91m | 3:17AM0.43m | 4:36PM0.86m | 4:10AM0.44m | 5:06PM0.79m | 5:09AM0.44m | ||||||||
Low Tide | 8:39PM0.33m | 6:18AM-0.15m | 9:08PM0.29m | 7:08AM-0.18m | 9:39PM0.26m | 7:55AM-0.18m | 10:12PM0.24m | 8:40AM-0.15m | 10:46PM0.22m | 9:23AM-0.08m | 11:19PM0.20m | 10:04AM0.02m | 11:52PM0.18m | 10:44AM0.13m | |||||||
 |  | | | |  | | |  | |  | | |  | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 |
 | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | 7:08 |
mm | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 26 | 26 | 24 | 26 | 25 | 24 | 25 | 25 | 24 | 26 | 25 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 26 |
Feels °C | 27 | 25 | 26 | 25 | 23 | 26 | 24 | 24 | 26 | 25 | 24 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | WSW 18 | WSW 18 | WSW 16 | SW 16 | SW 16 | SW 16 | WSW 15 | NNE 7 | WNW 16 | WNW 16 | WNW 15 | N 8 | NNE 8 | NE 7 | NNE 7 | NNE 7 | WNW 14 | NNE 8 | WNW 14 | NNE 7 | NNE 7 |
| kJ | 61 | 60 | 53 | 65 | 40 | 39 | 22 | 57 | 51 | 53 | 73 | 46 | 62 | 136 | 47 | 30 | 67 | 32 | 64 | 55 | 54 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | W 16 | N 8 | SW 14 | W 14 | WSW 17 | W 15 | W 15 | W 15 | W 14 | W 14 | WSW 17 | WNW 14 | SW 16 | WNW 13 | WNW 13 |
| kJ | 15 | 30 | 13 | 12 | 11 | 11 | 19 | 5 | 8 | 33 | 29 | 112 | 109 | 109 | 106 | 103 | 29 | 66 | 10 | 60 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 20 | NW 20 | W 14 | WSW 19 | SW 14 | SW 13 | WSW 18 | SW 15 | WSW 16 | WSW 16 | WSW 17 | E 8 | SW 16 | SW 12 | SW 16 | SW 15 |
| kJ | — | — | — | — | — | 8 | 15 | 15 | 37 | 8 | 7 | 30 | 9 | 25 | 26 | 29 | 6 | 10 | 5 | 10 | 9 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | NE 8 | NE 8 | NE 7 | ENE 7 | ENE 7 | — | E 6 | E 6 | ENE 7 | ENE 6 | ENE 7 | E 7 | E 7 |
| kJ | 270 | 299 | 410 | 432 | 382 | 319 | 285 | 146 | 229 | 229 | 160 | 121 | 99 | — | 76 | 112 | 125 | 110 | 154 | 134 | 74 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 14 | 14 | 20 | 20 | 14 | 20 | 5 | 14 | 14 | 5 | 5 | 14 | 5 | 14 | 14 | 14 | 14 | 20 | 14 | 14 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Rivermouth_Wailuku 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.
Information about the Rivermouth_Wailuku Surf forecast
The above surf forecast table for Rivermouth_Wailuku provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rivermouth_Wailuku can be found by selecting the local surf guide option on the grey menu. Our Rivermouth_Wailuku 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 (Rivermouth_Wailuku) 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 Rivermouth_Wailuku 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.
Rivermouth_Wailuku is 4 km (2 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.
Nearest