Surf Forecasts:
Lahaina Breakwall/Harbour surf forecast from 15 Aug 2026:
- Best quality surf: Sunday 16 Aug, 2PM (local time) - 2ft (0.6m), 7s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 1.5ft (0.5m), 17s period, SW swell with 138 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 2PM (local time) - 2ft (0.6m), 7s period with S 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 Sunday (Aug 16) at 2PM. The primary swell is predicted to be 0.6m and 7s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lahaina Breakwall/Harbour in the next 16 days are 0.5m 17s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Saturday (Aug 15) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 16th Aug) | 2ft (0.6m) 7s |
| Best Surf | 2PM (Sun 16th Aug) | 2ft (0.6m) 7s |
| Most Powerful | 8AM (Fri 21st Aug) | 1.5ft (0.5m) 17s |
Table - best surf conditions forecast for Lahaina Breakwall/Harbour over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s lined up for us over the next couple of weeks.
Honestly, if you’re hoping for a big swell to get you excited, this isn’t the run for it. The whole 16-day window is a pretty flat, low-energy affair. The combined swell energy is mostly weak, sitting between 64 and 259 (moderate energy at the best of times), and the waves never get above 2 ft. That’s tiny, ankle to knee high stuff. There’s a long stretch of poor quality surf that starts right now and doesn’t really let up until the end of the month. The only spot on the radar is Lahaina Breakwall/Harbour, a reef break that’s consistent and works best with a WSW swell direction. The water temp is sitting at 81°, which is pretty normal for this time of year, about what you’d expect.
The first few days, from Saturday the 15th through to the end of the week, are basically a write-off. The swell is really small, under 2 ft, and though the wind is often offshore from the ENE or NE, keeping the surface clean, the wave height is just too pathetic to get excited about. The swell period is fairly short too, around 8 to 14 seconds, so there’s not much energy or shape behind the waves. Crowds are sometimes an issue here, but with this little on offer, you’ll likely have it to yourself.
Moving into the following week, things don’t really improve. The swell stays tiny, around 1.0 ft to 2 ft, with a mix of S and SSW swells. The periods get a bit longer, up to 18 seconds on the 20th, which means the waves that do show up will be more defined and have a bit more push, but the size is still too small for any real surfing. The wind keeps blowing offshore or cross-off, with light to gentle breezes, so it’s clean, but still—you’re looking at marginal waves.
The one time the combined energy climbs into moderate territory is around the 25th and 26th of August, with the energy hitting 152 and 259 respectively. The swell is still only 2 ft, though, and coming from the SSW with a period of 14 to 19 seconds. That longer period means the waves will have more shape and punch, and the consistent offshore winds from the NE will keep the surface glassy. This is the best you’ll get, but it’s still a very small, ordinary swell. For a surfer, this is a wash—the waves are just too small to do anything with.
After that, the last few days of August and into the 30th, the swell drops back to 1.0 ft, with the energy fading again. The wind stays light offshore, so it’s clean, but there’s just no wave height to ride.
So, the bottom line: there are no standouts in this 16-day window. The surf is tiny, the energy is low, and the conditions are mediocre at best. If you’re desperate, you could paddle out on a longboard during the lightest offshore mornings, but don’t expect much. Kite surfers might find the wind and flat water more interesting than paddle surfers. That’s the story from here.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Sat night. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Winds decreasing (strong winds from the ENE on Sat night, light winds from the ENE by Sun afternoon). | 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 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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) | S 13 | SSW 13 | S 14 | S 8 | SSW 13 | S 15 | S 14 | SSW 14 | SSW 13 | S 13 | S 13 | S 13 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 17 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
90 | 59 | 101 | 60 | 56 | 110 | 107 | 68 | 59 | 30 | 30 | 31 | 41 | 68 | 41 | 79 | 77 | 95 | 100 | 93 | 124 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off |
High Tide | 5:30PM0.65m | 6:04AM0.51m | 5:46PM0.58m | 6:57AM0.50m | 5:55PM0.52m | 8:06AM0.48m | 5:48PM0.46m | 10:06AM0.48m | 12:33PM0.52m | 1:26PM0.57m | |||||||||||
Low Tide | 10:49AM0.09m | 11:41PM0.09m | 11:27AM0.18m | 00:06AM0.09m | 12:05PM0.26m | 00:31AM0.09m | 12:52PM0.34m | 1:00AM0.10m | 1:43AM0.11m | 3:06AM0.12m | |||||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | |
mm | 2 | — | 21 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 26 | 27 | 27 | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 26 | 26 | 21 | 29 | 30 | 29 | 29 | 29 | 26 | 27 | 27 | 25 | 28 | 28 | 26 | 29 | 29 | 28 | 29 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSW 13 | S 14 | ENE 8 | ENE 8 | S 15 | S 14 | SSW 14 | SSW 13 | S 13 | S 13 | S 13 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | NNE 7 | SW 16 | NE 7 |
90 | 59 | 101 | 439 | 344 | 110 | 107 | 68 | 59 | 30 | 30 | 30 | 41 | 68 | 41 | 79 | 77 | 95 | 42 | 93 | 82 | |
Swell 2 Height (m) Direction Period (s) | NNW 8 | W 11 | W 13 | S 8 | S 7 | SSW 6 | SSW 6 | W 11 | W 11 | WSW 17 | WSW 18 | WNW 12 | W 12 | W 12 | W 11 | W 11 | SSW 8 | E 9 | ENE 8 | E 8 | SW 16 |
7 | 10 | 13 | 60 | 39 | 15 | 3 | 9 | 10 | 28 | 30 | 14 | 25 | 11 | 9 | 9 | 6 | 24 | 33 | 12 | 124 | |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | NNW 9 | S 13 | SSW 13 | WNW 11 | W 11 | SW 5 | SW 19 | W 13 | W 13 | WSW 18 | S 12 | S 12 | S 12 | SW 8 | W 11 | SW 8 | SW 17 | SW 9 | E 8 |
9 | 10 | 7 | 55 | 56 | 12 | 10 | 1 | 15 | 13 | 14 | 31 | 11 | 11 | 11 | 3 | 9 | 2 | 100 | 3 | 12 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 10 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 6 | ENE 5 | ENE 5 | ENE 5 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 5 | NE 7 | — | NE 7 | — |
1299 | 1723 | 940 | 736 | 497 | 263 | 214 | 127 | 90 | 64 | 81 | 122 | 136 | 138 | 131 | 108 | 68 | 67 | — | 102 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 151 | 139 | 109 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 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.











