Surf Forecasts:
Hapuna surf forecast from 11 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 5PM (local time) - 1.5ft (0.5m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 5PM (local time) - 1.5ft (0.5m), 18s period, SW swell with 152 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 5PM (local time) - 1.5ft (0.5m), 18s period with SW swell.
Best Forecast Surf Conditions for Hapuna this week:
The surf forecast for Hapuna over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 5PM. The primary swell is predicted to be 0.5m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hapuna in the next 16 days are 0.5m 18s and forecast to arrive on Wednesday (Sep 16) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Thursday (Sep 17) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 16th Sep) | 1.5ft (0.5m) 18s |
| Best Surf | 5PM (Wed 16th Sep) | 1.5ft (0.5m) 18s |
| Most Powerful | 5PM (Wed 16th Sep) | 1.5ft (0.5m) 18s |
Table - best surf conditions forecast for Hapuna over the next 16 days.
The Lowdown
Alright, let me tell you about the next couple weeks. It's a quiet stretch for Hapuna. The first week is pretty flat, with tiny little waves that are barely pushing through. The energy just isn't there to get you excited. You'll be looking at a lot of mornings and afternoons where the swell is just a whisper, mostly around 0.7ft to 1ft from the southwest. The good news is the wind is often glassy or very light, so when a wave does show up, it might have a clean face, but there's just no power behind it. The wave energy is weak, hanging around 14 to 70 for most of the first few days. This is a tough time for a beginner because even the ankle-biters are sparse. For an expert, it's a board-storage day.
The first real glimmer of something happens towards the middle of the week. On Wednesday the 16th, into Friday the 18th, the combined energy picks up into the low triple digits, like 106 and 157, meaning the ocean is waking up a bit. You'll see waves around 1ft to 2ft from the southwest with periods getting up to 18 to 20 seconds. That's some long-period groundswell energy, which is promising for shape, but at this size it'll just make for some occasional, glassy, waist-high lines. The wind is looking clean or glassy on these days, which is your best bet. For a more experienced surfer on a log, you might get a few fun ones, especially on the Thursday 17th afternoon glass-off.
But don't get your hopes up too high. By the weekend of the 20th, it fades back into the weak stuff, and the last week of the outlook, from Monday the 22nd onward, everything turns to garbage. The wind shifts to a cross-onshore and onshore flow from the west, and the swell drops off to nothing. There's a run of "poor surf conditions" for the last four or five days straight, so don't bother. There's no standout day here that screams "go". If you have to pick, make it the afternoons on the 16th, 17th, or 18th. But honestly, this is a two-week snoozer. The water temp is about average for this time of year, so no surprises there.
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 SummaryMostly dry. Warm (max 30°C on Wed morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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) | SW 16 | SW 10 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 15 | SSW 15 | SSW 14 | W 10 | SSW 22 | SSW 21 | SW 20 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 67 | 14 | 57 | 57 | 60 | 29 | 29 | 22 | 21 | 20 | 8 | 46 | 45 | 98 | 96 | 94 | 79 | 152 | 75 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | cross-on | glassy | off | cross | cross-off | off | cross | glassy | glassy | cross | glassy | glassy | cross | cross-off | cross-off |
High Tide | 4:11AM0.53m | 4:16PM0.63m | 4:50AM0.58m | 4:46PM0.55m | 5:28AM0.61m | 5:15PM0.47m | 6:08AM0.62m | 5:43PM0.39m | 6:50AM0.62m | 6:10PM0.32m | 7:39AM0.59m | 6:37PM0.25m | |||||||
Low Tide | 10:13PM-0.02m | 10:03AM0.02m | 10:37PM-0.02m | 10:50AM0.06m | 11:00PM-0.01m | 11:39AM0.10m | 11:22PM-0.00m | 12:31PM0.14m | 11:45PM0.02m | 1:34PM0.18m | 00:09AM0.04m | 3:00PM0.20m | 00:37AM0.07m | ||||||
 |  |  | | | |  | | | | | | | | | | | | | |
 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:30 | — | 6:29 | — | — | 6:28 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 28 | 29 | 27 | 30 | 29 | 27 |
Feels °C | 28 | 31 | 31 | 29 | 29 | 30 | 29 | 29 | 30 | 28 | 30 | 30 | 31 | 31 | 33 | 30 | 34 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | NNE 4 | NNE 8 | NNE 8 | NNE 8 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 6 | NE 5 | NE 5 | NNE 7 | NNE 7 |
| kJ | 15 | 7 | 23 | 50 | 43 | 67 | 68 | 68 | 67 | 64 | 61 | 26 | 51 | 50 | 33 | 11 | 27 | 76 | 96 |
Swell 2 Height (m) Direction Period (s) | SW 16 | NNE 8 | SW 15 | SW 15 | SW 15 | SW 14 | NE 4 | SSW 12 | SSW 15 | SSW 14 | SW 14 | SSW 22 | SSW 21 | SW 20 | NNE 8 | NNE 7 | SW 18 | SW 18 | SW 17 |
| kJ | 67 | 22 | 57 | 57 | 60 | 29 | 4 | 15 | 21 | 20 | 7 | 46 | 45 | 98 | 22 | 21 | 79 | 152 | 75 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 9 | ENE 10 | ENE 10 | NE 5 | SW 14 | SSW 15 | W 11 | W 11 | W 10 | SSW 14 | SSW 13 | WSW 9 | SW 19 | SW 19 | NNE 7 | SW 11 | SW 9 |
| kJ | 16 | 14 | 13 | 20 | 9 | 3 | 29 | 22 | 9 | 9 | 8 | 18 | 17 | 8 | 96 | 94 | 10 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | NE 5 | — | — | — | — | NE 4 | NNE 4 | — | — | NNE 4 | — | — | — | — | — | — | — |
| kJ | — | — | 10 | — | — | — | — | 4 | 7 | — | — | 5 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 87 | 3 | 32 | 87 | 87 | 32 | 87 | 41 | 41 | 91 | 91 | 41 | 3 | 3 | 3 | 3 | 0 | 3 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Hapuna Surf forecast
The above surf forecast table for Hapuna provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hapuna can be found by selecting the local surf guide option on the grey menu. Our Hapuna 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 (Hapuna) 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 Hapuna 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.
Hapuna is 84 km (52 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.
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