Surf Forecasts:
Waiehu beach park surf forecast from 21 Aug 2026:
- Best quality surf: Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 7s period, E swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 2PM (local time) - 6ft (1.8m), 9s period, E swell with 506 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 7s period with E swell.
Best Forecast Surf Conditions for Waiehu beach park this week:
The surf forecast for Waiehu beach park over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 5AM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Waiehu beach park in the next 16 days are 1.8m 9s and forecast to arrive on Sunday (Aug 23) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 11s period and expected on Friday (Aug 21) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 7s |
| Most Powerful | 2PM (Sun 23rd Aug) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Waiehu beach park over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – for the next two weeks, the outlook for Waiehu Beach Park is a tough one. This is a reef and point setup, and when it’s on, it’s a dream for beginners. But for the majority of this forecast, it’s going to be a write-off.
We’re looking at a long, frustrating gap right through. From Thursday afternoon (August 20th) straight through to Saturday morning (August 30th), there is nothing but poor conditions. The wind is locked in from the East and ENE, blowing cross-onshore, mussing up the surface and ruining any chance of clean waves. The swell energy is weak to moderate – starting around 110 and climbing up to 662 – but the combination of choppy wind and onshore sides just kills it. We don't get a single decent window until late in the run.
The headline here is the final few days, specifically Monday, September 1st. That’s your standout. By Sunday the 30th, we see the energy really start to build, hitting a strong 1097 and then 1390. The swell jumps up to 6ft and then 7ft on Sunday from the ENE, but again, it’s blown out.
But look at the first of September. That Tuesday morning is where it gets interesting. The combined swell energy is very strong (1542). The swell is a thumping 10ft from the ENE, with a period of 10 seconds. That’s proper groundswell, but with that period and direction, it’s going to be pitching steep on the reef. That’s expert territory. The wind finally drops to a light 3 mph from the NE – a light cross-onshore – which will actually clean it up nicely. The water temp is running at 80°, which is bang on normal for this time of year.
That Tuesday afternoon is also a standout to watch, with the energy spiking to 2469. However, it's still a 10ft swell but with a shorter 9-second period. It’s a big, powerful, and likely unruly wave. For the experienced crew, Monday the 31st and Tuesday, September the 1st, are the only real shots we have. After that, it fades quickly and the poor wind returns.
So, to sum it up: don’t bother paddling out until very late in the month. The long-range window around the 31st of August and the 1st of September is your best bet – just know it’s for experts only.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 27°C on Sun afternoon, min 24°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | NE 7 | E 8 | ENE 7 | E 5 | E 7 | E 7 | E 7 | E 7 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 91 | 86 | 48 | 70 | 117 | 192 | 225 | 269 | 403 | 473 | 324 | 301 | 301 | 294 | 341 | 259 | 204 | 188 | 181 | 156 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | 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 | 12:08PM0.64m | 12:40PM0.69m | 10:27PM0.32m | 1:07PM0.73m | 11:42PM0.36m | 1:30PM0.77m | 00:25AM0.41m | 1:53PM0.80m | 1:02AM0.47m | 2:15PM0.81m | 1:38AM0.52m | |||||||||
Low Tide | 2:05AM0.15m | 4:00AM0.14m | 8:33PM0.31m | 5:11AM0.09m | 8:04PM0.29m | 5:58AM0.05m | 8:07PM0.27m | 6:36AM0.01m | 8:19PM0.24m | 7:10AM-0.01m | 8:36PM0.21m | |||||||||
 |  | |  | | | | | | |  | |  |  | | |  | | | | |
 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | 3 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 26 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 25 | 27 | 26 | 26 | 26 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 31 | 29 | 31 | 30 | 28 | 28 | 27 | 26 | 27 | 26 | 25 | 28 | 27 | 28 | 27 | 28 | 25 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | WNW 10 | W 10 | WNW 13 | WNW 12 | WNW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 |
| kJ | 91 | 41 | 37 | 27 | 9 | 19 | 17 | 70 | 96 | 93 | 68 | 71 | 68 | 31 | 30 | 30 | 43 | 41 | 29 | 26 |
Swell 2 Height (m) Direction Period (s) | E 8 | ENE 7 | E 8 | W 11 | W 10 | WSW 16 | WSW 16 | WSW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 18 | SW 17 | SW 16 | SW 16 | SW 18 | SW 15 | SW 18 | SW 16 |
| kJ | 19 | 37 | 12 | 36 | 18 | 25 | 25 | 24 | 10 | 9 | 8 | 8 | 12 | 11 | 10 | 10 | 12 | 8 | 12 | 11 |
Swell 3 Height (m) Direction Period (s) | WSW 18 | E 9 | W 11 | WSW 16 | WSW 16 | SW 10 | WNW 12 | W 9 | W 9 | W 9 | W 9 | W 18 | SW 14 | SW 13 | W 12 | W 12 | W 11 | W 11 | W 10 | N 7 |
| kJ | 30 | 24 | 21 | 26 | 25 | 4 | 13 | 2 | 2 | 2 | 2 | 6 | 8 | 7 | 3 | 3 | 2 | 2 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | — | E 8 | ENE 7 | E 5 | E 7 | E 7 | E 7 | E 7 | E 8 | E 9 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | — | 86 | 48 | 70 | 117 | 192 | 225 | 269 | 403 | 473 | 324 | 301 | 301 | 294 | 341 | 259 | 204 | 188 | 181 | 156 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 7 | 4 | 20 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 20 | 15 | 20 | 15 |
Best forecast wave conditions in Maui | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Waiehu beach park Surf forecast
The above surf forecast table for Waiehu beach park provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waiehu beach park can be found by selecting the local surf guide option on the grey menu. Our Waiehu beach park 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 (Waiehu beach park) 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 Waiehu beach park 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.
Waiehu beach park is 5 km (3 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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