Surf Forecasts:
Rivermouth_Wailuku surf forecast from 3 Aug 2026:
- Most powerful swell: Monday 3 Aug, 11PM (local time) - 5ft (1.5m), 12s period, ENE swell with 583 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 1.5m 12s and forecast to arrive on Monday (Aug 03) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 12s period and expected on Sunday (Aug 09) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 3rd Aug) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Rivermouth_Wailuku over the next 16 days.
The Lowdown
G'day, Rusty here. Let’s be straight with you—this 16-day stretch for the Wailuku area is a total write-off for decent surf. The weather just won't line up, and I’m not seeing a single window where you’d want to paddle out.
The whole period kicks off with nothing on offer, and it stays that way right through to the end. The first record is on Sunday, August 2nd, with Rivermouth_Wailuku seeing a cross-onshore wind and a messy 6ft swell from the ENE. The water is 80°, which is about normal for the time of year, but it doesn’t matter because the surf is just poor. That same story repeats day after day—cross-onshore winds, choppy, lumpy, and no quality. The swell energy is weak to moderate at best, hitting a peak of 595 (moderate wave energy) on the morning of August 16th, but that’s still coupled with a moderate breeze and a cross-on wind. Nothing cleans up. The period is short, mostly 7 to 8 seconds, so it’s just wind-slop—no power, no shape.
For a break like Rivermouth_Wailuku, which is a reef setup and fairly consistent, it’s a real shame. The optimum swell direction is NNE, but we’re getting ENE all the way, so it’s not even hitting the spot right. The crowds are often there normally, but honestly, nobody’s going to be out in this junk. If you’re a kite surfer, the wind is there, but for paddle surfing, don’t bother. This is a long, blank run for the area, but it happens—forecasts can change, and sometimes you just have to wait. I’ll be back when it’s better.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 27°C on Fri morning, min 25°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 477 | 381 | 261 | 234 | 534 | 436 | 460 | 281 | 207 | 286 | 190 | 149 | 110 | 37 | 86 | 108 | 161 | 176 | 212 | 292 |
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 |
High Tide | 4:43PM0.71m | 5:20AM0.50m | 4:58PM0.65m | 6:31AM0.50m | 5:07PM0.58m | 8:17AM0.53m | 4:59PM0.52m | 10:35AM0.60m | 11:51AM0.70m | 12:37PM0.79m | 10:03PM0.34m | |||||||||
Low Tide | 11:27PM0.13m | 10:39AM0.24m | 11:58PM0.11m | 11:22AM0.35m | 00:37AM0.08m | 12:37PM0.46m | 1:32AM0.06m | 2:47AM0.04m | 4:09AM0.00m | 8:44PM0.33m | ||||||||||
 |  | |  | | | | | | |  | |  | | | | | | | | |
 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 27 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 27 | 27 | 25 | 26 | 26 | 26 |
Feels °C | 27 | 25 | 28 | 27 | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 27 | 28 | 25 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 12 | N 5 | ENE 11 | W 13 | ENE 10 | ENE 9 | NNE 8 | NNE 8 | NNW 8 | NNW 8 | ENE 7 | NNW 7 | NE 9 | NE 11 | NE 9 | NE 9 | NE 9 |
| kJ | 130 | 125 | 119 | 104 | 5 | 436 | 13 | 281 | 207 | 7 | 6 | 7 | 13 | 37 | 10 | 36 | 40 | 27 | 31 | 31 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 8 | N 8 | N 7 | N 7 | W 11 | N 10 | NNE 9 | NNE 9 | W 12 | W 12 | N 8 | W 12 | NNW 8 | NE 12 | NNW 7 | NNW 7 | WSW 18 | WSW 18 | WSW 18 |
| kJ | 14 | 12 | 11 | 25 | 4 | 2 | 8 | 9 | 8 | 11 | 11 | 5 | 11 | 11 | 23 | 5 | 5 | 33 | 31 | 30 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | W 11 | W 12 | W 12 | SW 17 | SW 17 | W 12 | W 12 | SW 16 | SW 16 | W 11 | N 8 | ESE 6 | W 11 | SW 20 | WSW 19 | N 7 | N 6 | N 6 |
| kJ | 3 | 3 | 2 | 11 | 11 | 11 | 11 | 12 | 11 | 10 | 9 | 10 | 4 | 4 | 2 | 15 | 37 | 4 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 11 | — | ENE 11 | — | ESE 3 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 4 | ENE 7 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 477 | 381 | 261 | 234 | 534 | — | 460 | — | 1 | 286 | 190 | 149 | 110 | 14 | 86 | 108 | 161 | 176 | 212 | 292 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 20 | 20 | 5 | 14 | 5 | 5 | 14 | 5 | 5 | 14 | 5 | 14 | 14 | 14 | 14 | 14 | 14 | 5 | 14 | 14 |
Best forecast wave conditions in Maui | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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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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