Surf Forecasts:
H-Reef surf forecast from 31 Aug 2026:
- Most powerful swell: Saturday 5 Sep, 11AM (local time) - 8ft (2.5m), 13s period, E swell with 2,576 kJ wave energy.
Best Forecast Surf Conditions for H-Reef this week:
The most powerful waves expected at H-Reef in the next 16 days are 2.5m 13s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 11s period and expected on Wednesday (Sep 02) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sat 5th Sep) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for H-Reef over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about the surf. The first week is a bit of a dud, to be honest. There’s a stretch of about nine days from the end of August into early September where the wind is just ruining everything. The swell is there, but the wind is relentless, so you’re looking at a long gap before anything worth paddling out for.
H-Reef is the only option we’ve got. It’s a reef that breaks fairly consistently. But for the first week, forget it. The wind is cross-shore from the ENE at 15 to 22 mph, and the swell is 2 to 2.5m with a short period of 7 to 8 seconds. The combined energy is moderate to strong (276 to 1129), but it’s all messy wind-slop. The water temp is 27°C, which is about average for this time of year.
Things get interesting on Saturday, September 5th. The swell jumps to 2.5m, but the period stretches out to a very long 13 seconds. That’s real groundswell energy, and the combined energy hits 2615. The wind is still cross-shore from the East at 12-15 mph, so it won’t be glassy, but there’s power in the water. It’s a “keep an eye on it” kind of day.
The real standout, the one you want to mark on your calendar, is Wednesday morning, September 9th. The wind dies completely—dead calm, flat out glassy. The swell is still a solid 3.0m from the East, with a period of 9 seconds, and the combined energy is a massive 1572. This is big, expert-only territory. The lake is glassy, the reef will be handling that east swell perfectly, and the direction (E) is a great match for the optimum (NNE) with that offshore S wind. This is a top-tier session for the crew who can handle it. The rest of that week fades as the swell drops to 2.0m and the wind picks up again.
The second week from September 10th onward is a slow fade. The swell drops to 1.7m to 2.1m, the periods shrink back to 8 seconds, and the wind is cross or cross-on again. The energy drops into the low hundreds (288 to 639). It’s just not worth the paddle.
The best on offer is Wednesday, September 9th, at H-Reef. The big, clean, glassy 3.0m east swell is the only show in town. It’s a long wait, but it’ll be worth it for the experienced lot.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun night. Warm (max 27°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri morning. Warm (max 27°C on Wed afternoon, min 25°C on Wed night). Mainly strong winds. | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 13 | E 13 | E 13 | E 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 209 | 299 | 392 | 347 | 475 | 569 | 521 | 434 | 456 | 588 | 594 | 756 | 790 | 926 | 804 | 627 | 2223 | 2576 | 2187 | 1643 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 3:36PM0.79m | 4:26AM0.74m | 3:54PM0.73m | 5:17AM0.74m | 4:08PM0.67m | 6:21AM0.72m | 4:12PM0.61m | 7:59AM0.72m | 10:08AM0.75m | 11:27AM0.82m | ||||||||||
Low Tide | 10:03PM0.15m | 10:11AM0.34m | 10:29PM0.13m | 10:55AM0.43m | 11:00PM0.13m | 11:57AM0.51m | 11:40PM0.14m | 00:37AM0.17m | 2:13AM0.19m | 4:02AM0.18m | ||||||||||
 |  |  | | |  | | | | |  |  | | |  | |  | |  | | |
 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — |
mm | — | 1 | — | — | 2 | 2 | 1 | 2 | — | — | — | — | — | — | 1 | — | — | — | 2 | — |
Temp °C | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 27 | 26 |
Feels °C | 26 | 25 | 25 | 27 | 25 | 26 | 27 | 26 | 27 | 27 | 26 | 24 | 23 | 22 | 23 | 25 | 25 | 27 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | E 11 | ESE 10 | SE 9 | E 9 | W 16 | SE 12 | ESE 11 | ESE 10 | E 14 | E 14 | E 13 | E 12 | NW 10 | NW 9 | E 13 | E 13 | N 11 | NNE 11 | NNE 11 | E 12 |
| kJ | 59 | 9 | 3 | 60 | 5 | 6 | 47 | 38 | 103 | 89 | 167 | 107 | 4 | 3 | 285 | 499 | 10 | 39 | 38 | 1643 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | W 16 | W 16 | W 16 | S 17 | W 12 | E 15 | SE 12 | SE 11 | NW 11 | NW 10 | NW 10 | W 9 | NW 9 | NW 9 | N 13 | SSW 13 | SW 8 | SSW 18 | NNE 10 |
| kJ | 8 | 5 | 5 | 5 | 22 | 3 | 4 | 22 | 61 | 5 | 4 | 4 | 2 | 3 | 3 | 3 | 32 | 18 | 61 | 33 |
Swell 3 Height (m) Direction Period (s) | W 16 | W 11 | W 13 | — | SSW 14 | E 15 | W 12 | E 13 | E 12 | W 10 | W 10 | W 9 | SSW 14 | — | NW 9 | SSW 13 | N 11 | S 12 | SSW 8 | W 18 |
| kJ | 5 | 2 | 3 | — | 20 | 4 | 3 | 14 | 11 | 2 | 2 | 2 | 39 | — | 3 | 33 | 10 | 12 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 13 | E 13 | E 13 | — |
| kJ | 209 | 299 | 392 | 347 | 475 | 569 | 521 | 434 | 456 | 588 | 594 | 756 | 790 | 926 | 804 | 627 | 2223 | 2576 | 2187 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 33 | 144 | 25 | 23 | 23 | 23 | 23 | 23 | 23 |
Best forecast wave conditions in Maui | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our H-Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the H-Reef Surf forecast
The above surf forecast table for H-Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at H-Reef can be found by selecting the local surf guide option on the grey menu. Our H-Reef 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 (H-Reef) 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 H-Reef 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.
Are you planning a vacation in Maui? If you are looking for accommodation near H-Reef, camping, hotels and condos and appartments in Maui, consider staying in Kahului which is 8 km (5 miles) away. Other places in and around Maui where you can find information about places to rent, and car hire include Wailuku which is 15 km (9 miles) away, Kihei, Lanai - Lanai and Kaunakakai - Molokai.
Nearest