Surf Forecasts:
H-Reef surf forecast from 25 Aug 2026:
- Most powerful swell: Monday 31 Aug, 11PM (local time) - 6ft (1.9m), 8s period, ENE swell with 430 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 1.9m 8s and forecast to arrive on Monday (Aug 31) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Tuesday (Aug 25) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 31st Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for H-Reef over the next 16 days.
The Lowdown
Hey, Rusty here. Let’s be real – this forecast is a long slog. We’ve got 16 days to look at, but the first week and a half is mostly junk. The surf is there, but the wind is ruining it. Let’s break it down.
The only spot in the game is H-Reef, a reef break for advanced surfers only. It’s fairly consistent, exposed to the swell, and loves a NNE direction. The water’s at 80°, which is pretty normal for this time of year – nothing wild.
From Tuesday the 25th of August through the end of the month, it’s a total bust. Swell heights are 4ft to 6ft, coming from the E or ENE, with a short, weak period of 7 to 8 seconds. The combined energy is moderate – numbers like 381 on the 25th morning, up to 408 on the 29th – but it’s all cross-shore wind, 12 to 16 mph from the ENE. That’s putting a chop on everything, and the surf quality is poor. No waves worth paddling for.
Into the first week of September, things get a little better, but it’s still marginal. On Tuesday the 1st of September morning, we’ve got 6ft from the ENE at 8 seconds, but it’s still cross-shore with a cross-chop. The afternoon turns cross-onshore and choppy. Wednesday the 2nd sees a lighter breeze – 6 mph from the NE – but it’s cross-onshore, and the swell drops to 5ft. The afternoon gets a marginal nod with 5ft from the NE, but it’s still light cross-shore with small ripples. Not clean.
The standout comes on Thursday the 3rd of September. The morning bumps up to 6ft from the E, with the period stretching to 10 seconds – that’s a proper groundswell. The combined energy jumps to 812 (moderate), and the wind is a gentle 9 mph cross-shore, giving us a slight cross-chop. It’s still marginal, but it’s the best we’ve seen. The afternoon gets even better: 7ft from the E, 11 seconds period, and the energy hits 1070 (strong). The wind picks up to 12 mph cross-shore, so there’s a bit of chop. Still, with that longer period, the waves will have more shape and punch. This is the pick of the entire forecast – a real window for advanced surfers.
Friday the 4th through Sunday the 6th stays marginal, with swell around 6ft to 7ft from the ENE, periods 9 to 10 seconds, and gentle to moderate cross-shore winds. The energy stays moderate to strong (708 to 1236), but the quality never locks in. Then on Monday the 7th and Tuesday the 8th, we see the period jump to 11 and even 12 seconds. Tuesday the 8th afternoon has 8ft from the ENE at 12 seconds – that’s a big, long-period groundswell – with combined energy of 1568 (very strong). The wind is moderate cross-shore, so there’s chop, but that’s a lot of power. For experts only, and it’s still a gamble. Wednesday the 9th drops back to 8ft with 11 seconds, but the wind picks up to 16 mph, making it messy again.
So, if you’re waiting, the best call is the 3rd of September – that Thursday morning and afternoon. The swell is solid, the period is long enough to get some juice, and the wind is as good as we’re going to get. For the rest, you’re chasing marginal stuff. Beginners should stay out – anything over 5ft, and especially over 7ft, is too much. And with that long-period swell on the 8th, it’s going to be breaking straight at a reef, so only the experienced crew should be out there.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 27°C on Tue morning, min 24°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 26°C on Fri morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph | |||||||||||||||||||||
372 | 314 | 256 | 209 | 181 | 166 | 176 | 161 | 159 | 163 | 173 | 191 | 214 | 200 | 237 | 168 | 250 | 107 | 209 | 186 | 372 | |
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 | cross |
High Tide | 1:55PM0.89m | 1:12AM0.54m | 2:17PM0.90m | 1:49AM0.59m | 2:38PM0.90m | 2:25AM0.64m | 2:58PM0.87m | 3:03AM0.69m | 3:17PM0.84m | 3:43AM0.72m | 3:36PM0.79m | 4:26AM0.74m | 3:54PM0.73m | ||||||||
Low Tide | 8:30PM0.33m | 7:13AM0.11m | 8:44PM0.30m | 7:47AM0.11m | 9:01PM0.26m | 8:21AM0.14m | 9:19PM0.22m | 8:55AM0.19m | 9:40PM0.18m | 9:32AM0.26m | 10:03PM0.15m | 10:11AM0.34m | 10:29PM0.13m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — |
Temp °C | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 27 | 27 | 26 | 25 | 24 | 25 | 26 | 25 | 25 | 25 | 26 | 24 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 10 | WNW 10 | WNW 9 | ESE 10 | NW 10 | NW 10 | N 8 | N 7 | E 15 | E 15 | E 13 | E 13 | E 12 | E 11 | ENE 7 | E 11 | NNE 7 | E 10 | NNE 7 | ENE 9 |
8 | 9 | 9 | 8 | 9 | 15 | 15 | 11 | 8 | 112 | 109 | 130 | 166 | 104 | 94 | 168 | 59 | 102 | 48 | 67 | 62 | |
Swell 2 Height (m) Direction Period (s) | N 8 | W 12 | N 7 | N 7 | WNW 10 | N 9 | N 8 | NW 9 | E 16 | NNE 6 | NW 8 | WNW 8 | NW 8 | NW 8 | W 17 | E 11 | W 16 | ENE 10 | W 16 | E 9 | W 16 |
1 | 3 | 1 | 1 | 9 | 2 | 5 | 14 | 44 | 13 | 3 | 7 | 3 | 3 | 6 | 62 | 5 | 35 | 5 | 41 | 5 | |
Swell 3 Height (m) Direction Period (s) | W 12 | N 8 | W 11 | NE 9 | NE 9 | N 6 | N 9 | NE 8 | WNW 9 | WNW 9 | W 10 | W 19 | W 18 | W 17 | NW 8 | W 16 | NW 8 | W 16 | W 8 | W 12 | E 15 |
3 | 1 | 2 | 3 | 3 | 1 | 2 | 3 | 8 | 8 | 2 | 7 | 6 | 6 | 3 | 5 | 3 | 5 | 1 | 3 | 5 | |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | — | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
372 | 314 | 256 | 209 | 181 | 166 | 176 | 161 | 159 | 163 | 173 | 191 | 214 | 200 | 237 | — | 250 | 107 | 209 | 186 | 372 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 23 | 25 | 25 | 25 | 25 | 25 | 23 | 25 | 9 | 23 | 25 | 23 | 25 | 25 | 25 | 23 | 23 | 9 | 23 | 25 | 23 |
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.











