
Surf Forecasts:
Hakalau surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 2AM (local time) - 5.5ft (1.7m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 11AM (local time) - 7ft (2.2m), 12s period, ENE swell with 1,272 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 2AM (local time) - 5.5ft (1.7m), 11s period with ENE 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 Tuesday (Sep 08) at 2AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.8m and 14s. Another secondary swell of 1.1m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hakalau in the next 16 days are 2.2m 12s and forecast to arrive on Monday (Sep 07) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 8th Sep) | 5.5ft (1.7m) 11s |
| Best Surf | 2AM (Tue 8th Sep) | 5.5ft (1.7m) 11s |
| Most Powerful | 11AM (Mon 7th Sep) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Hakalau over the next 16 days.
The Lowdown
Alright folks, Rusty here. Looking at the next couple of weeks, and it’s a bit of a mixed bag. We’ve got some fun, clean windows early on, but the ocean is really going to fire up later in the period with some serious size, though we’ll have to deal with some lumpy, cross-onshore conditions then. Let’s break it down day by day.
We start this week at Hakalau. On Monday the 7th, it’s a write-off. The ocean is getting hammered by a fresh 30 km/h cross-onshore wind, which is making everything lumpy and messy. It’s pushing 7ft of ENE swell, but with that wind, it’s not even worth paddling out. The wave energy is strong (1318), but it’s all for nothing.
Tuesday the 8th is a bit better. The wind drops off a little, and we’re looking at a lighter cross-onshore breeze (15 km/h), with the swell easing to 5ft from the NE. It’s still got that moderate-to-strong energy (969), but the quality is only marginal at best. Same story for Wednesday the 9th, the swell drops to under 3ft and the wind is on it, making it a poor surf day.
Thursday the 10th sees the wind flip onshore, but it’s light. Swell is around 5ft from the ENE, but the period is a short, weak 7 seconds. It’s going to be a bit jumbled and lacking any punch. Not great.
Now, Friday the 11th through Sunday the 13th is where we find our first real standout. The winds go light, with that ESE breeze on Friday, turning NE-ish for the weekend. The swell stays small, in the 3 to 4ft range, with a period of 8 to 11 seconds. The energy is weak (360 or lower), but it’s clean. This is the pick of the early week. We're talking small, playful waves with clean surfaces. It’s not going to be big, but it’ll be ridable and user-friendly.
The start of the second week (Monday 14th, Tuesday 15th) is pretty lackluster. Small, weak swell and onshore breezes. Not really worth a paddle.
But hold on, because things start to change from Wednesday the 16th. A new, longer-period ENE swell starts to build, pushing 6ft on Wednesday morning. The period is still a short 8 seconds, but the energy is climbing into the moderate range (453). The problem is the wind is mostly onshore or cross-onshore with a risk of thunderstorms. It’s going to get bigger, but it’s going to get messier.
This builds through the end of the week. By Saturday the 19th, we're looking at some serious size. The swell jumps to 8ft from the E, and the energy rockets up to a very strong 1498. The wind is a cross-onshore 15 km/h, but the period is still only 9 seconds. This is a lot of water moving, but with that short period and onshore wind, Hakalau is going to be a washing machine. This is definitely expert-only territory, and even then, it might be more of a challenge than a treat. Sunday the 20th and Monday the 21st hold similar conditions, with the swell staying above 7ft, but the onshore winds and short-period energy will keep the quality poor.
The final days of the forecast, Tuesday the 22nd, show the swell easing to 6ft but still with the same onshore/cross-onshore wind issues.
So, the big takeaway? The first week is all about the small, clean windows from Friday the 11th to Sunday the 13th. That’s the best bet for a fun, relaxed surf. The second week sees a significant swell event, but it’s compromised by poor winds, making it one for the experts and tow-in crew only. If you see it as a kite-surfing opportunity, that might be the better call, because the paddle surfing is going to be rough.
Stay safe out there.
Rusty
Short Range ForecastModerate rain (total 11mm), heaviest on Mon morning. Warm (max 29°C on Tue morning, min 25°C on Wed night). Winds decreasing (fresh winds from the SE on Mon afternoon, light winds from the SSW by Mon night). | Days 4-6 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 25°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | ENE 12 | ENE 12 | ENE 11 | NE 11 | NE 10 | E 13 | E 13 | E 12 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 11 | ENE 11 | ENE 10 | E 10 | E 9 | NNE 8 | NNE 8 | NNE 8 | NE 8 |
Wave Graph | |||||||||||||||||||||
1272 | 947 | 739 | 593 | 334 | 280 | 255 | 190 | 197 | 173 | 162 | 167 | 303 | 292 | 263 | 192 | 136 | 90 | 88 | 86 | 98 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross-on | glassy |
High Tide | 1:05PM0.99m | 00:55AM0.57m | 1:41PM1.01m | 1:40AM0.65m | 2:13PM1.00m | 2:20AM0.74m | 2:41PM0.97m | 2:59AM0.80m | 3:08PM0.91m | 3:37AM0.85m | 3:32PM0.84m | 4:14AM0.87m | 3:53PM0.76m | 4:51AM0.86m | |||||||
Low Tide | 7:54PM0.28m | 6:41AM0.11m | 8:17PM0.23m | 7:30AM0.10m | 8:40PM0.18m | 8:13AM0.12m | 9:03PM0.15m | 8:55AM0.16m | 9:26PM0.12m | 9:35AM0.22m | 9:48PM0.11m | 10:14AM0.28m | 10:11PM0.11m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:24 | — | |
mm | 1 | — | — | — | 1 | 4 | 1 | — | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 27 | 29 | 28 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 26 | 27 | 28 | 32 | 31 | 31 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | NE 11 | NE 10 | ENE 8 | ENE 8 | E 12 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 11 | ENE 11 | ENE 10 | E 10 | E 9 | NNE 8 | NNE 8 | NNE 8 | NE 8 |
1272 | 947 | 739 | 593 | 334 | 275 | 163 | 190 | 197 | 173 | 162 | 167 | 303 | 292 | 263 | 192 | 136 | 90 | 88 | 86 | 98 | |
Swell 2 Height (m) Direction Period (s) | N 9 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | SE 9 | E 12 | E 11 | ENE 11 | SE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | ENE 9 | ESE 8 | E 8 | ESE 8 |
25 | 153 | 246 | 315 | 297 | 280 | 255 | 22 | 139 | 93 | 102 | 25 | 37 | 48 | 44 | 76 | 90 | 71 | 40 | 31 | 69 | |
Swell 3 Height (m) Direction Period (s) | S 19 | N 9 | NNW 13 | NNW 12 | NNW 12 | SE 9 | SE 9 | NW 11 | SE 9 | SE 9 | SE 9 | NW 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ENE 9 | SE 9 | ENE 8 |
7 | 14 | 17 | 14 | 14 | 29 | 30 | 19 | 21 | 20 | 19 | 3 | 24 | 23 | 23 | 9 | 9 | 40 | 32 | 46 | 6 | |
Wind waves Height (m) Direction Period (s) | SE 9 | SE 5 | SE 5 | SE 5 | SE 5 | — | — | ENE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
21 | 60 | 49 | 47 | 53 | — | — | 164 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 74 | 76 | 0 | 67 | 20 | 18 | 18 | 18 | 20 | 96 | 95 | 14 | 20 | 20 | 14 | 20 | 158 | 95 | 122 | 14 | 0 |
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.










