Surf Forecasts:
Rivermouth_Wailuku surf forecast from 4 Jul 2026:
- Most powerful swell: Monday 6 Jul, 5PM (local time) - 6ft (1.9m), 8s period, ENE swell with 393 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 Monday (Jul 06) 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 0.3m 17s period and expected on Sunday (Jul 05) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Mon 6th Jul) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Rivermouth_Wailuku over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let's be straight with you – this outlook is a tough one to swallow. I've got nothing but poor surf conditions across the entire 16-day run for Rivermouth_Wailuku. The ocean just isn't cooperating, so don't bother waxing up your board just yet.
The problem is a persistent cross-onshore wind from the ENE all the way through, gusting anywhere from 9 mph to 16 mph. That's keeping the surface choppy and messy. We're looking at chest-high waves, around 3.6 ft to 6.2 ft, but don't let the size fool you. The period is short, mostly 7 to 8 seconds, meaning these are weak, wind-driven slop with very little push. The combined swell energy is moderate at best, ranging from 180 to 397 (moderate wave energy), but it's all just bumpy, disorganised lines. The water temperature is sitting at a warm 79.3°F, which is about normal for this time of year with a 0.9°F anomaly, so at least it'll be a nice bath.
The wind state is always cross-on, so there's no clean window at all. From Saturday the 4th of July straight through to Sunday the 19th of July, every session is a write-off. Honestly, with the strong cross-onshore wind and the beach/reef setup, this might be more interesting for kite surfing than paddle surfing. There's no standout, no hidden gem for the next two weeks-plus. This is just one of those periods where the surf gods are on holiday.
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 26°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 278 | 292 | 260 | 264 | 297 | 217 | 362 | 393 | 347 | 327 | 382 | 319 | 263 | 249 | 181 | 208 | 234 | 208 | 212 | 294 | 279 |
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 | 5:37PM0.72m | 5:28AM0.37m | 6:00PM0.66m | 6:53AM0.38m | 6:21PM0.61m | 8:47AM0.43m | 6:42PM0.55m | 10:41AM0.53m | 7:00PM0.48m | 11:52AM0.64m | 12:42PM0.75m | 9:34PM0.37m | |||||||||
Low Tide | 10:13AM0.06m | 00:39AM0.20m | 10:48AM0.16m | 1:13AM0.16m | 11:32AM0.26m | 1:53AM0.12m | 12:43PM0.37m | 2:40AM0.06m | 3:32PM0.46m | 3:32AM0.01m | 4:29AM-0.05m | 8:19PM0.37m | |||||||||
 | |  | | |  |  | | | | | |  | | | | | | | |  | |
 | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — | — | 7:10 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 26 | 26 | 25 | 25 | 25 | 23 | 24 | 24 | 22 | 25 | 25 | 23 | 25 | 25 | 23 | 26 | 25 | 25 | 28 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | E 9 | SSW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | NNE 6 | W 15 | W 14 | W 13 | W 13 | W 14 | W 13 |
| kJ | 53 | 52 | 48 | 31 | 19 | 28 | 25 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 47 | 4 | 15 | 14 | 14 | 14 | 31 |
Swell 2 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 19 | WSW 18 | E 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | — | — | — | SW 14 | S 13 | S 13 | S 13 | N 8 | SW 21 | WSW 19 |
| kJ | 25 | 24 | 35 | 31 | 9 | 18 | 4 | 4 | 4 | 3 | 3 | — | — | — | 7 | 3 | 3 | 3 | 4 | 17 | 37 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 20 | SW 15 | SW 15 | WSW 18 | SW 16 | SE 10 | W 16 | W 16 | — | — | — | — | — | W 15 | W 16 | — | W 18 | W 21 | — | — |
| kJ | 17 | 15 | 8 | 8 | 30 | 41 | 4 | 5 | 5 | — | — | — | — | — | 5 | 5 | — | 6 | 9 | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 278 | 292 | 260 | 264 | 297 | 217 | 362 | 393 | 347 | 327 | 382 | 319 | 263 | 249 | 181 | 208 | 234 | 208 | 212 | 294 | 279 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 20 | 14 | 20 | 20 | 20 | 20 | 20 | 20 | 14 | 20 | 20 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wind Speed (km/h)
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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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