Surf Forecasts:
Rivermouth_Wailuku surf forecast from 10 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 8PM (local time) - 6ft (1.9m), 8s period, ENE swell with 454 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 8PM. 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 | 8PM (Sun 12th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Rivermouth_Wailuku over the next 16 days.
Alright folks, Rusty here. Gonna be straight with you – looking at the next couple of weeks around here, it’s a tough one. We’ve only got one break on the cards, and it’s not exactly firing.
Right now, and for the entire forecast period, the only option is Rivermouth_Wailuku. The water temp is sitting at 79°, which is pretty much what you’d expect for this time of year, so the wettie decision is easy.
The problem is the wind. It’s locked in from the ENE for days on end, blowing cross-on shore. That’s gonna keep things choppy and messy. From the start on Friday, July 10th, through the weekend and into the following week, it’s a constant story of poor surf conditions. The swell is hanging around 5ft to 7ft, coming from the ENE with a short, weak period of only 7 to 8 seconds. The energy is moderate but really poorly directed, with readings hitting around 273 in the early going. It’s just not coming together.
Sunday the 12th sees a little bump in size to 7ft, and the energy pushes up to 439, but the period is still short at 8 seconds and that cross-on wind ruins any chance of a clean wave. It’s still poor. That pattern barely lets up. We get a tiny drop in the breeze to a gentle cross-on by Tuesday the 14th, but the swell drops too, to 5ft, and the wave quality is still described as poor. It’s a grind.
The truth is, this is a blank run for decent waves. The setup here is a reef, but with the swell coming from the wrong way (ENE) and the optimum being NNE, nothing is going to line up properly. The whole 16-day window is pretty much written off. For anyone looking to get wet, you’re better off hoping the forecasts change, because right now, this looks more interesting for a kite session than a surf, given the consistent side-shore breeze and choppy conditions.
Keep an eye on it, but don’t hold your breath.
- Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | NE 8 | ENE 7 | ENE 7 | ENE 7 | NNE 8 | ENE 7 | E 6 | ENE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 273 | 263 | 285 | 278 | 235 | 249 | 439 | 443 | 223 | 362 | 310 | 249 | 264 | 276 | 183 | 185 | 118 | 77 | 152 | 98 | 127 |
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 | 12:42PM0.75m | 9:34PM0.37m | 1:26PM0.84m | 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 | |||||||
Low Tide | 8:19PM0.37m | 5:24AM-0.11m | 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 | ||||||||
 | |  | | | | | | | | |  | | | |  | | | | | | |
 | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 24 | 25 | 26 | 24 | 26 | 25 | 24 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 25 | 23 | 24 | 25 | 23 | 26 | 25 | 24 | 27 | 26 | 25 | 27 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | W 13 | W 15 | W 13 | W 14 | WSW 18 | WSW 18 | WSW 16 | SW 16 | NNE 8 | SW 16 | WSW 15 | W 14 | WNW 16 | WNW 16 | WNW 15 | W 15 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 8 |
| kJ | 13 | 17 | 13 | 35 | 30 | 60 | 53 | 65 | 138 | 39 | 22 | 15 | 51 | 53 | 73 | 112 | 65 | 69 | 45 | 61 | 44 |
Swell 2 Height (m) Direction Period (s) | W 21 | W 12 | WSW 19 | WSW 18 | W 14 | W 13 | W 13 | W 12 | SW 16 | W 12 | W 16 | WNW 18 | SW 14 | W 14 | WSW 17 | WSW 18 | W 15 | W 15 | W 14 | WNW 14 | WNW 14 |
| kJ | 9 | 12 | 37 | 34 | 15 | 30 | 13 | 12 | 64 | 11 | 20 | 31 | 8 | 33 | 29 | 30 | 109 | 109 | 106 | 67 | 67 |
Swell 3 Height (m) Direction Period (s) | W 18 | SW 21 | — | — | — | — | — | W 12 | W 12 | W 20 | NW 20 | WSW 14 | WSW 19 | SW 14 | SW 13 | SW 13 | WSW 18 | WSW 16 | WSW 16 | WSW 17 | WSW 17 |
| kJ | 6 | 17 | — | — | — | — | — | 12 | 11 | 8 | 15 | 21 | 37 | 8 | 7 | 7 | 30 | 25 | 26 | 29 | 29 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | NE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 6 | ENE 6 |
| kJ | 273 | 263 | 285 | 278 | 235 | 249 | 439 | 443 | 223 | 362 | 310 | 249 | 264 | 276 | 183 | 185 | 118 | 77 | 152 | 98 | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 20 | 20 | 14 | 14 | 14 | 14 | 20 | 20 | 14 | 20 | 5 | 5 | 14 | 14 | 14 | 14 | 14 | 14 | 20 | 14 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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