Surf Forecasts:
Hapuna surf forecast from 19 Jul 2026:
- Most powerful swell: Saturday 18 Jul, 5PM (local time) - 1.5ft (0.5m), 13s period, W swell with 87 kJ wave energy.
Best Forecast Surf Conditions for Hapuna this week:
The most powerful waves expected at Hapuna in the next 16 days are 0.5m 13s and forecast to arrive on Saturday (Jul 18) 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 Saturday (Jul 25) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sat 18th Jul) | 1.5ft (0.5m) 13s |
Table - best surf conditions forecast for Hapuna over the next 16 days.
The Lowdown
Hey, Rusty here. Let’s be real—this Hapuna forecast is a long dry spell. We’re talking a 16-day window where the first two weeks are basically flat. The water’s sitting at 80.1°F, right about average for the season, but the waves just aren’t cooperating. The first few days show tiny, weak energy readings in the double digits, and there’s a big gap of nearly two weeks with no real surf.
The best chance comes on Sunday, August 2nd. In the afternoon, Hapuna (sandbar) will see a west swell at 2ft, with a 14-second period and a moderate energy reading of 173. It’s a long-period groundswell, so it’ll have some punch, but it might be a little straight on the sandbar. The wind is light and cross-onshore from the WNW at 3 mph, so it’s rideable but not glassy. The morning of the 2nd is also worth a look—1.3ft from the west at 15 seconds, energy 116, with clean offshore winds from the north at 6 mph. That’s a cleaner option. The swell direction matches the optimum west swell, so it’s lined up right. Crowds are possible at this fairly consistent spot.
If you’re patient, that Sunday, August 2nd, is the day to paddle out. Until then, it’s a waiting game.
Short Range ForecastMostly dry. Warm (max 29°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed morning, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | W 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSW 16 | SSW 12 | SSW 16 | SSW 26 | SSW 24 | SSW 18 | SSW 22 | SSW 16 | SSW 16 | SW 17 | SSW 13 | SSW 18 | SSW 20 |
Wave Graph  | ||||||||||||||||||||
 kJ | 87 | 57 | 50 | 29 | 29 | 27 | 13 | 26 | 13 | 26 | 65 | 55 | 30 | 0 | 25 | 25 | 47 | 17 | 0 | 38 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | glassy | off | cross-on | glassy | off | cross-on | glassy | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 7:10PM0.61m | 8:35AM0.44m | 7:42PM0.51m | 9:42AM0.48m | 8:14PM0.41m | 10:49AM0.54m | 8:47PM0.32m | 11:51AM0.59m | 9:44PM0.25m | 12:45PM0.63m | 11:28PM0.20m | 1:32PM0.66m | 00:54AM0.19m | |||||||
Low Tide | 2:07AM0.01m | 1:51PM0.22m | 2:39AM0.02m | 3:21PM0.28m | 3:12AM0.03m | 5:30PM0.29m | 3:48AM0.04m | 7:48PM0.24m | 4:32AM0.04m | 8:54PM0.19m | 5:23AM0.04m | 9:26PM0.14m | ||||||||
 |  |  | | | | | | | |  | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 26 | 28 | 29 | 26 | 28 | 28 | 26 | 28 | 27 | 26 | 28 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 30 | 28 | 29 | 31 | 30 | 29 | 30 | 30 | 30 | 30 | 29 | 30 | 30 | 27 | 27 | 28 | 25 | 27 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NE 7 | NNE 6 | NE 8 | NNE 8 | NNE 7 | NE 7 | NNE 5 | SSW 12 | NE 7 | NNE 7 | NE 6 | NNE 5 | NE 6 | NE 6 | NE 7 | SSW 18 | NNE 6 | NNE 7 |
| kJ | 76 | 59 | 54 | 51 | 57 | 50 | 64 | 49 | 15 | 14 | 50 | 33 | 83 | 19 | 39 | 66 | 46 | 61 | 47 | 78 |
Swell 2 Height (m) Direction Period (s) | W 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NE 7 | SSW 16 | SSW 12 | SSW 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | SSW 13 | ENE 7 | SSW 20 |
| kJ | 87 | 57 | 50 | 29 | 29 | 27 | 13 | 13 | 16 | 26 | 13 | 55 | 106 | 91 | 78 | 75 | 66 | 17 | 19 | 38 |
Swell 3 Height (m) Direction Period (s) | NE 8 | SSW 12 | SW 11 | SW 11 | SSW 12 | ENE 7 | SSW 10 | SSW 16 | SSW 12 | W 11 | SSW 26 | SSW 16 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SW 17 | SW 15 | SSW 18 | ENE 8 |
| kJ | 15 | 14 | 5 | 4 | 13 | 5 | 11 | 26 | 13 | 9 | 65 | 25 | 30 | 58 | 25 | 25 | 47 | 8 | 61 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NE 7 | — | — | — | — | — | — | — | NE 7 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 54 | — | — | — | — | — | — | — | 75 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 3 | 93 | 93 | 41 | 91 | 93 | 41 | 91 | 87 | 3 | 3 | 60 | 41 | 87 | 32 | 41 | 87 | 32 | 32 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hapuna 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 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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