Surf Forecasts:
H-Reef surf forecast from 13 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8AM (local time) - 11ft (3.5m), 11s period, E swell with 2,708 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 3.5m 11s and forecast to arrive on Saturday (Aug 15) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 13s period and expected on Saturday (Aug 15) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 15th Aug) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for H-Reef over the next 16 days.
The Lowdown
Right then, let’s get to it. Looking at the charts for our little stretch of coast, I gotta be straight with you—it’s a rough stretch ahead. We’ve got a solid 16-day window on the cards, but for the most part, the ocean’s just not playing ball for a proper paddle session. There’s swell, sure, but the wind is the real villain here, constant cross-shore and cross-onshore. The first recommendation doesn’t pop up until Thursday the 14th, so we’re sitting through a bit of a flat and choppy start.
The focus is all on H-Reef. This place is a fairly consistent reef break, exposed to the swell and handling what comes its way best when the swell is from the NNE. But for this whole period, the energy is coming from the E and ENE, which is not its ideal direction.
13 August – Thursday: We start with a meagre 5ft of short-period E swell (7 seconds) and a moderate breeze out of the ENE. Wave energy is weak (290). The water temp is about average for this time of year, nothing to write home about. It’s cross-chop and not worth getting wet. The afternoon stays poor.
14 August – Friday morning: This is where it picks up a touch. We get 7ft of E swell, period dragging a bit longer to 9 seconds, and the energy jumps to 786 (moderate). But that wind is still howling from the ENE at 16 mph. It’s a mess. The afternoon shows a glimmer with 8ft and an 11-second period (groundswell potential) and the energy hits 1295 (strong). The conditions are marginal, though. For a surf at H-Reef, the shorter-period wind-swell component will just make it a lumpy, cross-choppy beast. The bigger period means longer gaps, but the cross-shore wind will kill any chance of a clean face.
15 August – Saturday: Forget it. Swell jumps to a heavy 12ft from the east, with a moderate energy reading (2274-2060), but the wind is a strong cross-shore breeze at 22-25 mph. That’s dangerous, ugly, and for experts only if they’re mad. Too big for beginners, and the wind will make it a washing machine.
16 August – Sunday through 22 August – Saturday: The swell backs off a bit, staying between 3ft and 8ft, but the wind stays locked in from the E and ENE, 9-16 mph. The energy is moderate to weak (155-759). Every single one of these days is “poor surf conditions.” A lot of these sessions are short-period junk (7-8 seconds) which won’t hold an edge at the reef. It’s going to be constant cross-chop.
23 August – Sunday: This is our one and only true standout in the whole long-range window. We’re looking at a 7ft swell from the east, period hitting 9 seconds, giving a decent 759 energy reading. The wind is lighter, a moderate 12 mph from the E, but still cross-shore. For H-Reef, the swell direction is from the east, which is marginal, but the size is solid and the period is enough to draw some better lines. The catch is it’s still cross-shore, so it won't be perfect, but compared to the rest of this grim run, it’s the best on offer. This is a Sunday, so expect some company if the word gets out. The energy is moderate, not crazy powerful.
24 August – 28 August: The swell hangs around 5ft to 6ft with short periods (7-8 seconds) and the wind swings back to a stronger cross-shore. More of the same poor quality. The last few days are a frustrating end to the window.
So, to be honest, this is a tough stretch. The reef is getting plenty of water, but the wind is almost never cooperating. If you’re a kiter, this entire period is probably a better bet than paddling out, because the cross-shore wind is consistent and there’s swell to ride. For the surfer? The only window that looks remotely worth a look is the morning of Sunday the 23rd. It’s not a classic, but it’s the best of a bad bunch. The water temp is around average for the time of year. Keep your hopes low and your expectations lower.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Sat morning. Warm (max 27°C on Thu morning, min 25°C on Thu night). Winds increasing (moderate winds from the ENE on Thu morning, strong winds from the ENE by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Sun morning. Warm (max 27°C on Sun afternoon, min 24°C on Tue night). Winds decreasing (strong winds from the ENE on Sun morning, light winds from the ENE by Tue night). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | E 7 | E 8 | E 8 | E 9 | E 10 | E 11 | E 10 | E 10 | E 9 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | ENE 8 | E 8 | ENE 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
285 | 365 | 488 | 783 | 1163 | 2260 | 2657 | 2223 | 1904 | 1331 | 809 | 510 | 327 | 259 | 202 | 181 | 212 | 132 | 187 | 129 | 76 | |
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-on | cross |
High Tide | 3:29PM0.95m | 3:22AM0.64m | 3:53PM0.89m | 4:08AM0.67m | 4:14PM0.81m | 4:55AM0.67m | 4:29PM0.74m | 5:46AM0.67m | 4:38PM0.67m | 6:50AM0.65m | 4:30PM0.61m | 8:31AM0.64m | |||||||||
Low Tide | 8:35AM0.07m | 9:57PM0.24m | 9:15AM0.15m | 10:21PM0.22m | 9:53AM0.24m | 10:45PM0.20m | 10:30AM0.34m | 11:10PM0.19m | 11:09AM0.43m | 11:35PM0.20m | 11:55AM0.52m | 00:05AM0.21m | 00:47AM0.23m | ||||||||
6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | |
mm | — | — | — | — | — | 4 | 3 | 1 | 2 | 16 | 8 | 3 | 2 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 27 | 27 | 25 | 27 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 26 | 26 | 26 | 26 | 24 | 26 | 26 | 24 | 23 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | W 12 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 8 | W 12 | WNW 11 | N 8 | W 12 | NE 8 | WNW 13 | NE 6 | NNE 8 | NNE 7 | NNE 7 |
3 | 7 | 6 | 6 | 6 | 6 | 7 | 6 | 7 | 8 | 7 | 10 | 13 | 4 | 3 | 16 | 17 | 26 | 12 | 47 | 61 | |
Swell 2 Height (m) Direction Period (s) | NW 7 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 13 | W 12 | W 12 | N 8 | N 8 | NW 12 | N 7 | WNW 11 | W 10 | W 12 | W 12 | NE 7 | ESE 9 |
2 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 14 | 12 | 11 | 5 | 5 | 5 | 1 | 12 | 2 | 12 | 11 | 7 | 8 | |
Swell 3 Height (m) Direction Period (s) | NW 9 | NE 11 | — | W 12 | W 12 | SW 18 | W 14 | W 14 | W 13 | W 19 | S 16 | W 18 | SE 11 | W 11 | NW 11 | N 7 | W 18 | W 18 | W 17 | W 12 | W 11 |
3 | 5 | — | 3 | 3 | 12 | 4 | 4 | 14 | 7 | 20 | 6 | 5 | 2 | 5 | 1 | 6 | 6 | 6 | 11 | 9 | |
Wind waves Height (m) Direction Period (s) | E 7 | E 8 | E 8 | E 9 | E 10 | E 11 | E 10 | E 10 | E 9 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 8 | E 7 | ENE 8 | E 8 | ENE 8 | E 8 | E 8 |
285 | 365 | 488 | 783 | 1163 | 2260 | 2657 | 2223 | 1904 | 1331 | 809 | 510 | 327 | 259 | 202 | 181 | 212 | 132 | 187 | 129 | 76 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 25 | 25 | 23 | 25 | 25 | 26 | 132 | 33 | 144 | 23 | 23 | 23 | 25 | 23 | 23 | 23 | 9 | 9 | 2 | 9 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.











