Surf Forecasts:
H-Reef surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 8AM (local time) - 3ft (0.9m), 8s period, E swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 2PM (local time) - 10ft (3.0m), 13s period, E swell with 2,558 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 8AM (local time) - 3ft (0.9m), 8s period with E swell.
Best Forecast Surf Conditions for H-Reef this week:
The surf forecast for H-Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 8AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.7m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at H-Reef in the next 16 days are 3.0m 13s 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 0.5m 3s period and expected on Friday (Aug 21) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 20th Aug) | 3ft (0.9m) 8s |
| Best Surf | 8AM (Thu 20th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 2PM (Sun 23rd Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for H-Reef over the next 16 days.
The Lowdown
Alright, let's be straight with you. The next couple of weeks are looking pretty grim for H-Reef. That's the reality.
Through the rest of August, we’ve got a lot of small, messy, cross-shore slop. Honestly, there’s not a single session I’d paddle out for. The swell is tiny, with combined wave energy barely cracking 200 to 400 range (you know, weak to moderate stuff), the wind is constantly from the east, and it’s just choppy and unappealing. There’s a bit of a tease on Thursday 20th August afternoon when the wind goes glassy, but the swell is only 3ft from the NE with a short period – it’s surfable, but only just, and it’s not worth getting excited about.
The end of August and start of September actually see some solid swell pulsing through. But – and it’s a big but – the wind stays stubbornly cross-shore or cross-on from the east at 10 to 22 mph, trashing any chance of quality. This setup is actually looking more interesting for kite surfing than paddle surfing. The only day that raises an eyebrow is Tuesday 1st September. You’ll see a proper long-period groundswell push through from the east, hitting 10ft with a period around 14 seconds. That’s some serious energy (combined energy values over 3000). However, the wind is still a moderate cross-shore, which will put a lumpy texture on it. It’s a marginal call at best, and definitely only for the experts given the size. H-Reef is an exposed advanced reef break, and groundswell of this length can break a bit straight at a reef, so you’d need to be on your game. The water temperature is about average for the time of year.
If you absolutely have to surf, the highlight – and I use that word loosely – is that Tuesday 1st September. It’s the most powerful, biggest option by a mile. But with that wind, don’t expect perfection. The rest of the period is a write-off. We’re looking at a two-and-a-half-week stretch of nothing worth paddling for, which is a tough run.
Keep your eyes on the charts, but for now, stay home.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 24°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 37mm), heaviest during Mon morning. Warm (max 27°C on Sat morning, min 25°C on Sat night). Winds increasing (moderate winds from the E on Sat morning, strong winds from the ENE by Sun night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 | NE 7 | NE 7 | ESE 8 | E 6 | E 8 | E 8 | E 8 | E 12 | E 13 | E 12 | E 11 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 160 | 157 | 100 | 70 | 91 | 77 | 118 | 127 | 186 | 337 | 489 | 1277 | 2460 | 2460 | 1908 | 1397 | 1108 | 732 | 529 | 418 | 346 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | glassy | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 8:31AM0.64m | 11:00AM0.67m | 12:04PM0.73m | 12:39PM0.78m | 10:25PM0.40m | 1:07PM0.82m | 11:49PM0.44m | 1:32PM0.86m | 00:34AM0.49m | 1:55PM0.89m | 1:12AM0.54m | ||||||||||
Low Tide | 00:47AM0.23m | 2:05AM0.25m | 3:53AM0.24m | 9:00PM0.40m | 5:08AM0.20m | 8:20PM0.39m | 5:58AM0.16m | 8:20PM0.36m | 6:37AM0.12m | 8:30PM0.33m | |||||||||||
 | |  |  | | | | | | | | |  |  |  | | | | | |  | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | 11 | 16 | 2 | — | 2 | — |
Temp °C | 26 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 26 |
Feels °C | 28 | 27 | 27 | 29 | 30 | 30 | 29 | 27 | 28 | 27 | 26 | 26 | 24 | 23 | 23 | 23 | 24 | 24 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | E 8 | E 8 | E 7 | NE 7 | NE 7 | NE 7 | NNE 7 | NE 6 | W 10 | W 10 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | NW 11 | NW 11 | NW 11 | WNW 10 | WNW 10 | WNW 10 |
| kJ | 16 | 157 | 100 | 70 | 91 | 77 | 77 | 31 | 33 | 17 | 8 | 63 | 56 | 48 | 51 | 31 | 31 | 18 | 10 | 10 | 10 |
Swell 2 Height (m) Direction Period (s) | NE 6 | W 12 | NE 6 | NNE 6 | E 8 | E 8 | W 10 | W 11 | W 10 | ESE 14 | WNW 15 | W 16 | WNW 12 | WNW 11 | SSW 15 | W 18 | W 18 | W 17 | W 16 | W 13 | N 8 |
| kJ | 7 | 11 | 39 | 48 | 41 | 49 | 8 | 20 | 18 | 18 | 21 | 5 | 81 | 48 | 42 | 6 | 6 | 6 | 5 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 17 | W 11 | ESE 9 | ESE 9 | W 10 | W 17 | W 17 | W 16 | W 16 | W 16 | SSW 16 | SSW 16 | SSW 16 | S 20 | S 18 | SSW 18 | W 13 | N 8 | N 8 | W 13 |
| kJ | 11 | 5 | 2 | 8 | 8 | 8 | 23 | 5 | 5 | 5 | 5 | 24 | 49 | 24 | 7 | 7 | 31 | 3 | 1 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | E 8 | NNE 6 | — | — | — | — | ESE 8 | E 6 | E 8 | E 8 | E 8 | E 12 | E 13 | E 12 | E 11 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 |
| kJ | 160 | 49 | — | — | — | — | 118 | 127 | 186 | 337 | 489 | 1277 | 2460 | 2460 | 1908 | 1397 | 1108 | 732 | 529 | 418 | 346 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 23 | 2 | 2 | 23 | 0 | 2 | 9 | 23 | 23 | 23 | 25 | 36 | 146 | 144 | 26 | 23 | 25 | 23 | 23 | 23 | 23 |
Best forecast wave conditions in Maui | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
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