Surf Forecasts:
Rivermouth_Wailuku surf forecast from 10 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 5PM (local time) - 6.5ft (2.0m), 8s period, ENE swell with 496 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 2.0m 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) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Rivermouth_Wailuku over the next 16 days.
Alright folks, Rusty here. Let's take a look at what's on the table for the next couple of weeks.
Straight up, I gotta be honest with you – this is a tough stretch. We're looking at a solid 16-day window, and the news isn't great. The swell is coming in from the ENE, which is just about the worst direction for Rivermouth Wailuku. We're looking for a clean NNE swell, and this east-northeast windswell, with a short period of just 7 seconds, is creating really poor, choppy conditions. The water temp is sitting at 79°, which is about average for this time of year, nothing to write home about.
The first real entry we have is for Thursday, July 9th, with waves around 6ft and a moderate cross-onshore breeze at 16 mph. The combined energy is moderate (363), but the wind is just ruining it. This pattern of cross-onshore wind and short-period, junky swell just repeats itself day after day. Friday the 10th, Saturday the 11th, Sunday the 12th... it's all the same story. The swell size bumps up to 7ft on Sunday the 12th with a bit more energy (447-496), but the cross-onshore wind at 12-16 mph is still making a mess of it. There's not a single standout in the first week, folks. It's a loss.
As we move into the second week, things don't really improve from a surf quality standpoint. The wind stays stubbornly cross-onshore, and the swell is still mostly short-period windswell. However, around Monday the 20th and Tuesday the 21st, we see a shift in the swell. The period jumps to 15 and 18 seconds, and the energy climbs to 566 and 661 – that's strong wave energy. The problem? The swell is tiny, only 2ft to 3ft, and the wind is still cross-on. A long-period swell like that from the east is going to be too weak to make anything of itself at this exposed break, especially with the wind all wrong. By Wednesday the 23rd, we're back to the same short-period, choppy stuff.
So, what's the bottom line? There are no good surf options in this entire 16-day outlook. The swell direction is all wrong, and the wind is relentless. If you're looking for a paddle, you're better off taking a break. This setup looks far more interesting for kite surfing than paddle surfing with that consistent cross-on wind.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thu 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | NE 8 | NNE 8 | ENE 7 | NE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 363 | 349 | 273 | 263 | 263 | 278 | 278 | 242 | 447 | 496 | 423 | 310 | 277 | 142 | 117 | 255 | 120 | 183 | 206 | 198 | 204 |
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 | |||||||||
Low Tide | 4:29AM-0.05m | 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 | ||||||||
 |  | | | | | | | | | | | | |  | | | | |  | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 |
 | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | 7:09 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 25 | 25 | 25 | 25 | 25 | 26 |
Feels °C | 26 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 23 | 25 | 26 | 23 | 26 | 25 | 25 | 25 | 25 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | W 14 | W 13 | W 13 | W 15 | W 13 | W 14 | WSW 18 | WSW 18 | WSW 16 | SW 16 | SW 16 | SW 16 | SW 15 | NNE 7 | NNE 7 | WNW 16 | NNE 8 | W 15 | W 15 | W 15 | W 14 |
| kJ | 4 | 14 | 13 | 17 | 13 | 35 | 30 | 60 | 53 | 65 | 64 | 39 | 35 | 64 | 114 | 53 | 120 | 112 | 109 | 109 | 106 |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 14 | W 21 | W 12 | WSW 19 | WSW 18 | W 14 | W 13 | W 13 | W 12 | W 12 | W 12 | W 16 | W 14 | WNW 16 | W 14 | WNW 15 | WSW 18 | WSW 18 | WSW 16 | WSW 16 |
| kJ | 3 | 8 | 9 | 12 | 37 | 34 | 15 | 30 | 13 | 12 | 11 | 11 | 19 | 15 | 51 | 33 | 73 | 30 | 31 | 25 | 26 |
Swell 3 Height (m) Direction Period (s) | W 18 | — | S 12 | SW 21 | — | — | — | — | — | — | W 21 | W 20 | NW 20 | N 8 | SW 14 | SW 14 | WSW 17 | SW 13 | SW 14 | W 19 | W 11 |
| kJ | 6 | — | 3 | 17 | — | — | — | — | — | — | 9 | 8 | 15 | 6 | 8 | 8 | 29 | 7 | 8 | 7 | 2 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | NE 8 | E 7 | ENE 7 | NE 7 | ENE 7 | ENE 7 |
| kJ | 363 | 349 | 273 | 263 | 263 | 278 | 278 | 242 | 447 | 496 | 423 | 310 | 277 | 142 | 117 | 255 | 104 | 183 | 206 | 198 | 204 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 20 | 20 | 20 | 20 | 14 | 14 | 14 | 14 | 20 | 20 | 20 | 20 | 5 | 5 | 14 | 14 | 14 | 20 | 14 | 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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