Surf Forecasts:
Hakalau surf forecast from 23 Aug 2026:
- Best quality surf: Sunday 23 Aug, 8AM (local time) - 7.5ft (2.3m), 10s period, ESE swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 5AM (local time) - 7.5ft (2.3m), 9s period, E swell with 944 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 7.5ft (2.3m), 10s period with ESE swell.
Best Forecast Surf Conditions for Hakalau this week:
The surf forecast for Hakalau over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8AM. The primary swell is predicted to be 2.3m and 10s period with a secondary swell of 0.3m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hakalau in the next 16 days are 2.3m 9s and forecast to arrive on Sunday (Aug 23) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 19s period and expected on Wednesday (Aug 26) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 23rd Aug) | 7.5ft (2.3m) 10s |
| Best Surf | 8AM (Sun 23rd Aug) | 7.5ft (2.3m) 10s |
| Most Powerful | 5AM (Sun 23rd Aug) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Hakalau over the next 16 days.
The Lowdown
Alright folks, Rusty here with the outlook for Hakalau. This is a river mouth setup, and it’s fairly consistent, but we’ve got a bit of a slow start ahead. The water’s running about average for this time of year, so nothing wild there.
The first worthwhile surf doesn’t show up until the very end of the month, and even then it’s nothing to write home about. We’ve got a long stretch of poor conditions from this Sunday morning right through the end of the week. The wind is mostly cross-onshore or onshore, the swell is short-period and weak, and the energy readings are all in the low to moderate range (159 to 974). It’s a real flat spell.
Now, the best we’ve got is shaping up for Tuesday the 1st of September. The morning is looking like the pick of the bunch. We’ve got a clean 6ft swell from the ENE, with a light cross-onshore breeze that’ll keep the surface tidy. The combined energy is moderate at 506, and while the swell period is short at 9 seconds, it’s the best window we see. The afternoon holds up similarly, with 6ft from the ENE and light cross-onshore winds. It’s still marginal, but it’s the standout option in a pretty quiet forecast. Could be a few others out, but crowds are possible here.
Beyond that, there’s a brief glimmer on Saturday the 5th of September. The afternoon sees a nice cross-offshore wind from the NW, with a 6ft ENE swell and a longer 11-second period. The energy is strong at 654, and the wind is clean. That’s a promising setup, but it’s a long way out, so keep an eye on it.
Overall, don’t expect much action until the start of September. If you’re keen, the 1st is your best bet for a paddle.
Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun morning. Warm (max 27°C on Mon morning, min 23°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 26°C on Wed morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 10 | ESE 10 | E 9 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 8 | ENE 7 | ENE 7 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 885 | 939 | 830 | 647 | 488 | 432 | 427 | 173 | 302 | 221 | 186 | 160 | 217 | 183 | 147 | 143 | 139 | 142 | 220 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | glassy | cross-on | on | cross-on | on | on | cross-on |
High Tide | 11:36PM0.43m | 1:15PM0.88m | 00:32AM0.48m | 1:44PM0.92m | 1:11AM0.53m | 2:10PM0.96m | 1:46AM0.59m | 2:34PM0.97m | 2:21AM0.65m | 2:57PM0.97m | 2:56AM0.70m | 3:20PM0.95m | 3:32AM0.75m | ||||||
Low Tide | 8:21PM0.39m | 5:31AM0.21m | 8:20PM0.36m | 6:22AM0.17m | 8:30PM0.32m | 7:02AM0.13m | 8:46PM0.29m | 7:39AM0.11m | 9:03PM0.25m | 8:13AM0.11m | 9:22PM0.21m | 8:48AM0.13m | 9:42PM0.18m | ||||||
 |  |  | | | | | | | |  |  |  | | | | | | | |
 | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 6:44 | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — |
mm | 3 | 7 | 3 | 7 | 3 | 1 | 3 | 2 | 2 | 1 | — | — | — | — | — | 2 | — | — | 7 |
Temp °C | 26 | 25 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 |
Feels °C | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 26 | 27 | 27 | 27 | 27 | 26 | 28 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | E 10 | ESE 10 | E 9 | E 8 | SSE 12 | E 8 | E 8 | ESE 8 | E 8 | E 8 | ENE 7 | ENE 7 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 14 |
| kJ | 885 | 939 | 830 | 647 | 29 | 432 | 427 | 173 | 302 | 221 | 186 | 160 | 217 | 183 | 147 | 143 | 139 | 142 | 200 |
Swell 2 Height (m) Direction Period (s) | SSE 14 | SSE 13 | SSE 13 | SSE 13 | NW 12 | SSE 12 | SSE 12 | SSE 12 | S 12 | ESE 9 | ESE 9 | ESE 9 | S 19 | S 18 | S 16 | S 16 | E 14 | E 13 | S 13 |
| kJ | 40 | 35 | 34 | 34 | 6 | 14 | 14 | 14 | 11 | 8 | 33 | 32 | 62 | 96 | 46 | 78 | 101 | 130 | 31 |
Swell 3 Height (m) Direction Period (s) | W 10 | NW 13 | NW 12 | NW 11 | S 14 | NW 11 | NW 10 | NW 10 | NW 9 | S 12 | S 21 | S 20 | N 9 | N 8 | N 8 | N 8 | N 7 | N 7 | SE 11 |
| kJ | 2 | 6 | 6 | 5 | 4 | 5 | 4 | 4 | 3 | 3 | 35 | 67 | 6 | 11 | 12 | 19 | 17 | 8 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 8 | — | — | ENE 8 | — | — | — | — | — | — | — | — | — | — | ENE 7 |
| kJ | — | — | — | — | 488 | — | — | 173 | — | — | — | — | — | — | — | — | — | — | 220 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 74 | 14 | 18 | 16 | 158 | 18 | 14 | 158 | 160 | 95 | 158 | 95 | 0 | 158 | 158 | 14 | 158 | 158 | 20 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Hakalau Surf forecast
The above surf forecast table for Hakalau provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hakalau can be found by selecting the local surf guide option on the grey menu. Our Hakalau 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 (Hakalau) 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 Hakalau 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.
Hakalau is 21 km (13 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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