Surf Forecasts:
Lahaina Breakwall/Harbour surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 11PM (local time) - 4.5ft (1.4m), 14s period, SW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 5PM (local time) - 13ft (4.0m), 14s period, SSW swell with 6,831 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 2PM (local time) - 1.5ft (0.4m), 14s period with SSW swell.
Best Forecast Surf Conditions for Lahaina Breakwall/Harbour this week:
The surf forecast for Lahaina Breakwall/Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 2PM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Lahaina Breakwall/Harbour in the next 16 days are 4.0m 14s and forecast to arrive on Monday (Sep 07) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 14s period and expected on Friday (Sep 04) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 3rd Sep) | 1.5ft (0.4m) 14s |
| Best Surf | 11PM (Sun 6th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 5PM (Mon 7th Sep) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Lahaina Breakwall/Harbour over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about the same stretch in the units you’re more used to.
The next couple of weeks at Lahaina Breakwall/Harbour are mostly on the small side, but there’s one day that stands out. The water is running about average for the time of year, so no surprises there.
Thursday morning, the 3rd, is flat with a light cross-off breeze from the ENE at 9 mph, and waves only 1 ft from the SSW. Not worth the drive. The afternoon picks up a bit more wind, 16 mph offshore, but still just 1 ft.
Friday the 4th and Saturday the 5th see a slight bump to 2 ft to 3 ft, with clean offshore winds in the mornings. You’ll need a longboard. The combined energy moves from 156 to 274 (moderate), but it’s still small.
Sunday the 6th morning is your first real window. The swell hits 4 ft from the SSW, period at 12 seconds, with a light offshore from the ENE at 6 mph. The combined energy is 397 (moderate), and it’s clean. The afternoon gets a bit dodgy with a risk of thunderstorms and a cross-off wind.
The real standout is Monday the 7th. The morning brings 6 ft of SSW swell with a 14-second period – that’s a proper groundswell. Combined energy is 1526 (strong), and the wind is a light cross-off from the east at 9 mph. The waves are clean. This is the best of the whole forecast. The swell direction is spot-on for the reef. The afternoon, though, gets wild. The wind swings to the southeast at 16 mph, side-shore, and the swell jumps to 13 ft with a combined energy of 10597 (very strong). That’s big, powerful, and choppy. Expert only, and even then, it’s a handful.
After Monday, the surf drops hard. Tuesday the 8th is a complete loss with cross-on winds. From Wednesday the 9th through to the 18th, we’re back to 1 ft to 3 ft of swell, mostly from the SW, with periods from 10 to 25 seconds. The combined energy stays weak to moderate (47 to 363). The winds are mostly light and offshore or glassy, so it’s clean but tiny. Those longer-period swells (15-25 seconds) will have long waits between sets, but the reef might make better use of them than the beach.
Crowds here are sometimes an issue, so expect company on the Monday morning that actually has waves. The spot is consistent, so it won’t be deserted.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Sun night. Warm (max 28°C on Mon afternoon, min 26°C on Sun morning). Winds increasing (light winds from the NE on Sun night, strong winds from the S by Mon night). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | SSW 14 | SSW 14 | S 13 | S 13 | S 13 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 13 | SW 14 | SW 14 | SSW 14 | SW 11 | SSW 9 | SSW 9 | SSW 8 | NW 10 | NW 10 | NNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 69 | 65 | 87 | 156 | 158 | 139 | 145 | 199 | 218 | 397 | 501 | 787 | 1505 | 6831 | 2046 | 329 | 116 | 57 | 127 | 115 | 67 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | cross-off | off | cross-off | cross | cross-on | cross-on | cross-on | cross-off | off | off | off |
High Tide | 9:21AM0.55m | 11:40AM0.59m | 12:51PM0.66m | 1:35PM0.71m | 00:36AM0.31m | 2:09PM0.75m | 1:35AM0.38m | 2:40PM0.76m | 2:20AM0.46m | 3:07PM0.76m | 3:02AM0.52m | ||||||||||
Low Tide | 1:38AM0.06m | 3:21AM0.07m | 5:08AM0.05m | 8:44PM0.23m | 6:20AM0.02m | 8:45PM0.20m | 7:14AM0.00m | 8:58PM0.16m | 8:00AM-0.00m | 9:16PM0.12m | |||||||||||
 | |  | | | | |  | |  |  |  | | |  | | | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | 3 | 4 | — | — | 4 | 1 | — | 2 | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 26 |
Feels °C | 27 | 27 | 24 | 26 | 24 | 25 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 26 | 29 | 31 | 30 | 31 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | E 12 | SSW 14 | E 14 | E 14 | S 13 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 13 | SW 14 | ENE 12 | SW 15 | ENE 11 | W 9 | ENE 9 | ENE 8 | ENE 8 | NW 10 | E 13 |
| kJ | 77 | 65 | 199 | 289 | 158 | 139 | 145 | 199 | 218 | 397 | 501 | 787 | 1216 | 3746 | 527 | 211 | 141 | 86 | 107 | 115 | 128 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | ENE 16 | S 13 | S 13 | SW 13 | N 11 | NNE 10 | NNE 10 | NNE 8 | N 11 | N 10 | N 9 | SW 14 | ENE 12 | SSW 15 | NE 10 | SSW 9 | SSW 8 | NW 10 | SSW 13 | NNW 9 |
| kJ | 69 | 25 | 87 | 156 | 7 | 10 | 21 | 19 | 14 | 9 | 8 | 7 | 1505 | 970 | 196 | 220 | 116 | 57 | 127 | 102 | 59 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 9 | N 9 | N 8 | N 13 | SW 20 | SW 18 | SW 17 | N 11 | N 11 | NNE 6 | N 16 | S 11 | NNW 14 | ENE 14 | SSW 15 | W 7 | E 14 | E 14 | SSW 8 | SSW 13 |
| kJ | 4 | 3 | 2 | 1 | 3 | 15 | 48 | 75 | 9 | 9 | 7 | 5 | 21 | 20 | 69 | 148 | 51 | 142 | 136 | 25 | 67 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | E 6 | SSW 14 | SW 11 | SSW 9 | — | — | ENE 7 | ENE 6 | ENE 7 |
| kJ | 263 | 285 | 229 | 181 | 1728 | 947 | 998 | 1206 | 1120 | 1121 | 1089 | 1033 | 182 | 6831 | 2046 | 329 | — | — | 172 | 193 | 177 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 6 | 29 | 20 | 14 | 2 | 0 | 0 | 0 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Lahaina Breakwall/Harbour Surf forecast
The above surf forecast table for Lahaina Breakwall/Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lahaina Breakwall/Harbour can be found by selecting the local surf guide option on the grey menu. Our Lahaina Breakwall/Harbour 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 (Lahaina Breakwall/Harbour) 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 Lahaina Breakwall/Harbour 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.
Lahaina Breakwall/Harbour is 20 km (12 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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