Surf Forecasts:
Hapuna surf forecast from 6 Aug 2026:
- Most powerful swell: Saturday 8 Aug, 8AM (local time) - 0.5ft (0.2m), 19s period, SSW swell with 35 kJ wave energy.
Best Forecast Surf Conditions for Hapuna this week:
The most powerful waves expected at Hapuna in the next 16 days are 0.2m 19s and forecast to arrive on Saturday (Aug 08) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Aug 08) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 8th Aug) | 0.5ft (0.2m) 19s |
Table - best surf conditions forecast for Hapuna over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s cut to the chase. The forecast for Hapuna is pretty grim, with no real surf on offer for the entire 16-day window. There’s a big gap right from the start, and honestly, it’s going to be a long, flat spell.
We kick off on Thursday, August 6th, and it’s a dud. The swell is tiny, just 0.7ft of weak, wobbling energy (11). The wind is light and cross, and the report says it all: “poor surf conditions.” That’s the story for the next couple of weeks. Friday, Saturday, Sunday – all the same. We’re looking at 0.7ft to 1.0ft of swell, and while the wind goes glassy or clean at times, there’s just no power behind it. The combined energy is weak, barely cracking 54 (moderate wave energy) on the best days.
The water temperature is sitting at 81°F, which is about 1°F warmer than normal for this time of year. Not a big deal, but it’s a touch warmer than usual.
The swell does start to push a little into the second week, but it’s still a tease. Around the 15th and 16th of August, we get a slight bump to 1ft from the WNW with a period of 11-13 seconds. The combined energy climbs to 53 and 61, which is still weak. The wind stays cross-off or clean, but the waves are just too small to get excited about. This is not a time for a paddle session.
The only real standout, if you can call it that, is the afternoon of Monday, August 17th. The swell is a tiny 1.0ft, but the period jumps to 14 seconds, and the combined energy reaches 84. The wind goes glassy, so it’ll be clean. You might get a long, slow roller, but it’s still very small. Don’t get your hopes up.
For the rest of the window, it’s more of the same: 0.7ft to 1ft of swell, weak energy, and often not enough to push through the wind ripples. The crowds at Hapuna are listed as “sometimes,” so it won’t be busy, but there’s nothing to crowd anyway.
Honestly, this is a tough run. No standouts, no real swell. The forecasts can change, but right now, it’s a board-waxing and gear-checking kind of week. Stay patient.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 29°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | W 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 18 | SSW 18 | SSW 18 | W 13 | W 12 | W 12 | W 11 | W 11 | SSW 15 | W 10 | W 15 | W 11 | S 18 | W 13 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 19 | 20 | 18 | 18 | 17 | 32 | 31 | 30 | 28 | 25 | 23 | 21 | 21 | 23 | 8 | 17 | 23 | 0 | 30 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | off | cross-off | glassy | off | cross-off | cross-off | cross-off | cross | glassy | glassy | cross-on | cross | off | cross-off | glassy | off | cross | cross-off | off |
High Tide | 11:08AM0.63m | 9:29PM0.23m | 12:16PM0.69m | 11:28PM0.19m | 1:16PM0.76m | 1:00AM0.19m | 2:08PM0.80m | 2:05AM0.23m | 2:55PM0.83m | 2:57AM0.27m | 3:37PM0.84m | 3:45AM0.33m | 4:16PM0.81m | 4:30AM0.38m | |||||||
Low Tide | 6:57PM0.22m | 4:04AM-0.01m | 8:13PM0.15m | 5:14AM-0.02m | 8:57PM0.09m | 6:24AM-0.04m | 9:32PM0.05m | 7:27AM-0.07m | 10:05PM0.02m | 8:23AM-0.08m | 10:36PM0.00m | 9:15AM-0.06m | 11:06PM-0.01m | ||||||||
 |  |  | | |  | | | | |  | | | | | | | | | | | |
 | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:53 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 2 | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 29 | 29 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 29 | 29 | 26 | 28 | 29 | 27 |
Feels °C | 31 | 32 | 29 | 31 | 32 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 31 | 30 | 32 | 29 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 8 | NNE 4 | W 12 | NE 5 | NE 5 | NE 5 | NE 8 | NE 6 | NE 6 | NE 6 | NE 7 | NNE 5 | NE 7 | NE 7 | NE 6 | SSW 14 | NE 6 | NNE 6 | NE 5 | NNE 5 |
| kJ | 13 | 9 | 8 | 11 | 27 | 21 | 23 | 10 | 51 | 58 | 68 | 53 | 17 | 65 | 46 | 38 | 40 | 31 | 25 | 28 | 16 |
Swell 2 Height (m) Direction Period (s) | NE 8 | W 12 | SSW 14 | SSW 14 | W 12 | NE 7 | NE 10 | SSW 18 | SSW 18 | W 13 | W 12 | W 12 | NE 7 | SSW 15 | W 10 | SSW 14 | W 10 | SSW 13 | SSW 13 | SSW 13 | SSW 16 |
| kJ | 10 | 12 | 20 | 18 | 11 | 13 | 15 | 31 | 30 | 28 | 25 | 23 | 16 | 47 | 19 | 40 | 8 | 35 | 32 | 32 | 51 |
Swell 3 Height (m) Direction Period (s) | W 12 | SSW 14 | ENE 8 | ENE 7 | SSW 13 | SSW 13 | SSW 18 | SSW 13 | SSW 13 | SSW 16 | SSW 12 | SSW 12 | W 11 | W 11 | SSW 15 | W 10 | W 15 | W 11 | S 18 | W 13 | SSW 13 |
| kJ | 11 | 19 | 6 | 5 | 18 | 17 | 32 | 17 | 17 | 26 | 15 | 14 | 21 | 21 | 23 | 8 | 17 | 23 | 56 | 30 | 32 |
Wind waves Height (m) Direction Period (s) | — | NNE 5 | — | NNE 5 | — | — | — | NE 6 | — | — | — | — | — | — | — | — | NE 6 | — | — | — | — |
| kJ | — | 17 | — | 14 | — | — | — | 44 | — | — | — | — | — | — | — | — | 56 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 87 | 87 | 81 | 91 | 87 | 41 | 87 | 41 | 32 | 84 | 47 | 41 | 93 | 44 | 41 | 96 | 93 | 41 | 91 | 41 | 45 |
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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