
Surf Forecasts:
Hakalau surf forecast from 14 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 2AM (local time) - 3.5ft (1.1m), 10s period, E swell with glassy winds.
- Most powerful swell: Thursday 17 Sep, 2PM (local time) - 7.5ft (2.3m), 9s period, ENE swell with 754 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 8PM (local time) - 3ft (0.9m), 8s period with NE 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 Monday (Sep 14) at 8PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 8s. 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 Thursday (Sep 17) 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 0.1m 14s period and expected on Friday (Sep 18) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 14th Sep) | 3ft (0.9m) 8s |
| Best Surf | 2AM (Wed 16th Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 2PM (Thu 17th Sep) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Hakalau over the next 16 days.
The Lowdown
Alright, this is Rusty. Let me look at what’s cooking at Hakalau. I gotta be straight with you – the outlook for the next couple of weeks is pretty grim. The data shows nothing but poor surf conditions right through until the middle of next week, so there’s a solid week to ten days with absolutely nothing worth paddling out for. The swell energy is weak, wind is almost always cross-onshore, and the wave comment just says poor surf. It’s a tough stretch.
For Monday the 14th, there’s a tiny 3-foot NE swell, but with onshore wind, it’s junk. Tuesday the 15th is even smaller at 2 feet, with a cross-onshore breeze. We get a slight bump on Wednesday the 16th – 4 feet from the east – but again, wind is on or cross-on. The water temp is 81°, which is about average for the time of year, so nothing weird there. Still, no real surf.
Thursday the 17th and Friday the 18th see the swell push up to 6 to 7 feet from the ENE, but the energy is moderate and it’s all cross-onshore with risk of thunderstorms. That’s messy, choppy, and not fun for paddling. It’s not until Tuesday the 22nd that we finally see something change. The afternoon shows a 8-foot east swell with a 10-second period, and the combined energy jumps to strong. The wind is onshore, but the conditions shift to “marginal.” This is the first hint of something, but it’s still not good.
Wednesday the 23rd is the biggest swell of the period – 8 feet from the east, period up to 11 seconds, and strong energy. That’s powerful, but it’s big enough to be expert-only, and the wind is on or cross-onshore with rain showers. The waves will have power, but the shape will be messy. This is the best on offer, but it’s a rough one. It’s only for experienced surfers, and even then, it won’t be clean. After that, the swell drops off through the 24th and 25th, and by the weekend of the 27th and 28th, we’re back to small, weak, and marginal.
The last couple of days of the month, on the 28th and 29th, we see a 2-foot NNW swell with a very long 16-second period, but the energy is only moderate. That’s a groundswell, but it’s tiny, and it’s breaking at a river break – that might not hold it well. The wind is light, so it could be clean, but it’s so small it’s barely worth mentioning. Overall, there’s nothing here to get excited about. It’s a blank run, and for this area, that’s not unusual. Forecasts can change, but right now, I’d say leave the board in the car.
Rusty
Short Range ForecastModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 27°C on Tue morning, min 25°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Thu morning. Warm (max 27°C on Thu morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | NE 8 | NE 8 | NE 8 | E 11 | E 11 | E 10 | E 10 | E 10 | ENE 10 | ENE 9 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
100 | 109 | 86 | 89 | 84 | 247 | 242 | 233 | 471 | 525 | 660 | 481 | 477 | 489 | 450 | 505 | 461 | 403 | 392 | 350 | 414 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross-on | on | glassy | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 4:11PM0.69m | 5:32AM0.83m | 4:23PM0.62m | 6:19AM0.78m | 4:21PM0.56m | 7:27AM0.73m | 9:21AM0.71m | 11:04AM0.75m | 9:50PM0.38m | 11:56AM0.80m | 11:44PM0.44m | ||||||||||
Low Tide | 10:54AM0.36m | 10:33PM0.13m | 11:37AM0.43m | 10:56PM0.16m | 12:34PM0.50m | 11:23PM0.20m | 11:57PM0.25m | 1:07AM0.29m | 8:43PM0.38m | 7:30PM0.36m | |||||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — | |
mm | — | 1 | 1 | — | — | — | 2 | 2 | 4 | 3 | 4 | 3 | 2 | — | — | 2 | — | 1 | — | — | 4 |
Temp °C | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 30 | 29 | 30 | 29 | 29 | 30 | 30 | 31 | 29 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NNE 8 | E 6 | E 10 | E 10 | E 10 | ENE 10 | ENE 9 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 |
100 | 109 | 86 | 54 | 43 | 247 | 242 | 233 | 471 | 525 | 660 | 481 | 477 | 489 | 450 | 505 | 461 | 403 | 392 | 350 | 414 | |
Swell 2 Height (m) Direction Period (s) | E 6 | SE 8 | E 12 | E 6 | E 11 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | SSE 10 | SSE 10 | SSE 10 | S 14 | S 14 | S 20 | S 14 | S 18 | SE 8 | S 15 | S 15 | S 15 |
10 | 21 | 73 | 25 | 84 | 43 | 48 | 46 | 53 | 10 | 10 | 9 | 4 | 4 | 8 | 4 | 6 | 3 | 5 | 5 | 4 | |
Swell 3 Height (m) Direction Period (s) | SE 8 | E 14 | SE 8 | E 11 | N 8 | SE 8 | SE 8 | NNE 9 | SE 8 | S 14 | S 15 | S 14 | — | N 12 | — | S 18 | S 13 | S 16 | NW 10 | NW 12 | NW 9 |
22 | 33 | 20 | 89 | 33 | 11 | 11 | 16 | 11 | 4 | 4 | 4 | — | 3 | — | 7 | 4 | 5 | 4 | 6 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 156 | 20 | 14 | 74 | 74 | 0 | 74 | 76 | 72 | 18 | 18 | 16 | 18 | 18 | 16 | 20 | 20 | 14 | 20 | 20 | 14 |
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.










