
Surf Forecasts:
Lahaina Breakwall/Harbour surf forecast from 12 Sep 2026:
- Best quality surf: Friday 18 Sep, 2AM (local time) - 2.5ft (0.7m), 18s period, SW swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 2AM (local time) - 2.5ft (0.7m), 18s period, SW swell with 300 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8AM (local time) - 1.5ft (0.4m), 15s period with SW 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 Saturday (Sep 12) at 8AM. The primary swell is predicted to be 0.4m and 15s 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 0.7m 18s and forecast to arrive on Friday (Sep 18) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 10s period and expected on Thursday (Sep 17) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 12th Sep) | 1.5ft (0.4m) 15s |
| Best Surf | 2AM (Fri 18th Sep) | 2.5ft (0.7m) 18s |
| Most Powerful | 2AM (Fri 18th Sep) | 2.5ft (0.7m) 18s |
Table - best surf conditions forecast for Lahaina Breakwall/Harbour over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what we’ve got cooking.
Right now, the surf is tiny and pretty forgettable through the first week or so. We’re looking at a long stretch of small, clean, but very weak waves. The first decent window is a long way off, so don’t hold your breath just yet.
From the start of the forecast on Saturday the 12th of September, straight through to the 19th, it’s all very small stuff – mostly around 1 ft to 2 ft. The mornings are often glassy with that offshore wind, but the energy is low. The combined swell energy sits mostly under 100 (82) early on, which is weak. You could get wet, but it’s not going to be memorable. The 16th of September shows a little bump, with the swell energy climbing to 220 in the afternoon, but still only 2 ft from the WSW. Clean, yes, but marginal.
The standout in this whole 16-day window shows up much later. Saturday the 26th of September is the one to circle. The afternoon looks really promising at Lahaina Breakwall/Harbour – we get a pulse of NNW swell pushing 3 ft, with a period of 11 seconds and combined energy of 419. That’s moderate to strong energy for this spot. The wind will be light offshore from the ENE, so expect clean, peelable lines. This is a reef break, and with the swell direction matching the optimum WSW, it should shape up nicely. Not huge, but the quality will be there.
Sunday the 27th is still worth a look in the morning, with another 3 ft of NNW swell and 283 energy, but the wind goes cross-offshore, so it won’t be as clean as Saturday. By afternoon the swell drops right off.
Water temp is sitting at 81°F, which is about 0.5° above normal for this time of year – nothing unusual there.
Crowds are possible here – it’s a consistent spot that can get busy, especially when the conditions line up.
Overall, the first week is a write-off for anything pushy. But that Saturday the 26th offers a proper session if you’re patient.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SSW 14 | SW 14 | SW 22 | SW 21 | SW 20 | SW 19 | SW 19 | SW 18 | WSW 18 | SW 17 | SW 16 | SW 16 | SW 18 | SW 17 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
82 | 46 | 47 | 55 | 33 | 20 | 31 | 73 | 72 | 188 | 133 | 183 | 154 | 207 | 188 | 124 | 124 | 300 | 241 | 227 | 208 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | off |
High Tide | 4:15PM0.63m | 4:59AM0.62m | 4:32PM0.57m | 5:39AM0.61m | 4:45PM0.51m | 6:22AM0.59m | 4:50PM0.46m | 7:15AM0.55m | 4:34PM0.42m | 8:43AM0.51m | 11:28AM0.52m | ||||||||||
Low Tide | 9:59AM0.11m | 10:17PM0.04m | 10:36AM0.17m | 10:37PM0.03m | 11:14AM0.23m | 10:59PM0.04m | 11:55AM0.30m | 11:20PM0.05m | 12:49PM0.35m | 11:44PM0.08m | 00:14AM0.11m | 1:19AM0.15m | |||||||||
6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Temp °C | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 27 |
Feels °C | 28 | 28 | 25 | 28 | 28 | 26 | 28 | 28 | 27 | 29 | 30 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 8 | SW 14 | NE 9 | SW 15 | SW 15 | NE 8 | SW 14 | SW 22 | SW 21 | NNE 8 | SW 19 | SW 19 | SW 18 | WSW 18 | SW 17 | SW 16 | SW 16 | SW 18 | SW 17 | SW 17 | SW 16 |
72 | 46 | 79 | 55 | 33 | 74 | 31 | 73 | 72 | 23 | 133 | 183 | 154 | 207 | 188 | 124 | 124 | 300 | 241 | 227 | 208 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | WSW 16 | SW 14 | SSW 12 | WNW 13 | SSW 14 | NW 12 | SW 14 | SSW 13 | SW 20 | E 11 | E 11 | SSW 12 | SSW 11 | SW 11 | SW 19 | SW 19 | W 10 | W 9 | NW 11 | NW 10 |
75 | 25 | 47 | 14 | 17 | 20 | 6 | 30 | 17 | 188 | 22 | 36 | 14 | 12 | 5 | 59 | 93 | 2 | 2 | 5 | 4 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | WSW 8 | SW 8 | SW 8 | SW 12 | SSW 12 | SW 24 | SW 9 | E 13 | E 12 | SSW 12 | SSW 12 | N 9 | W 8 | SW 8 | SW 11 | NW 10 | W 9 | NW 12 | W 9 | W 9 |
82 | 7 | 3 | 3 | 6 | 14 | 22 | 3 | 13 | 25 | 15 | 15 | 7 | 1 | 2 | 5 | 4 | 2 | 5 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | — | NE 9 | ENE 9 | NE 9 | NE 9 | ENE 4 | NE 8 | NE 8 | NE 8 | ENE 5 | NE 5 | ENE 7 | ENE 5 | ENE 6 | ENE 6 | ENE 8 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 |
— | 263 | 127 | 172 | 190 | 17 | 153 | 169 | 122 | 34 | 62 | 93 | 92 | 167 | 168 | 400 | 701 | 454 | 328 | 306 | 244 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 0 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 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.










