Hakalau Surf Break

Lat Long: 19.90° N 155.13° W

Hakalau Surf Forecast and Surf Report

Issued: 7 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Hakalau sea temperature is
27.2°C
0.6° 

Hakalau surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Hakalau surf forecast from 8 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 5PM (local time) - 4.5ft (1.4m), 10s period, NE swell with glassy winds.
  • Most powerful swell: Tuesday 8 Sep, 11AM (local time) - 5ft (1.6m), 11s period, NE swell with 593 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 5PM (local time) - 4.5ft (1.4m), 10s 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 Tuesday (Sep 08) at 5PM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.9m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Hakalau in the next 16 days are 1.6m 11s and forecast to arrive on Tuesday (Sep 08) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Sep 08) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Tue 8th Sep)4.5ft (1.4m) 10s
Best Surf 5PM (Tue 8th Sep)4.5ft (1.4m) 10s
Most Powerful11AM (Tue 8th Sep)5ft (1.6m) 11s

Table - best surf conditions forecast for Hakalau over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the menu for the next couple of weeks.

Right off the bat, we’ve got a short window of decent waves on Tuesday, September 8th, but honestly, after that, it’s a long, dry stretch. The first real surf is on Tuesday morning at Hakalau. Swell is a clean 5 ft from the NE, with a period of 11 seconds, giving it some good push. The wind is glassy, almost nothing out of the SE at 3 mph, so the surface will be clean. The combined energy is moderate (954), and the water is sitting at a warm 81°, which is right about average for this time of year. Tuesday afternoon is even better – the wind goes completely calm, making it glassy. The swell drops a touch to 5 ft, still from the NE, and the period is a solid 10 seconds. This is the standout. It’s not huge, but it’s clean, and the quality is there for a ripper session.

But that’s the peak. From Wednesday the 9th, the wind turns onshore and chops everything up. We get a solid belt of cross-on winds from the ESE, and the wave heights stay around 3 ft to 4 ft, but the quality is poor. The combined energy drops off fast, and the conditions are just messy. That continues through the whole first week. There’s a brief flicker of a decent swell on Sunday the 13th with 4 ft from the ESE and a 9-second period, but the wind is still onshore, so it’s nothing to get excited about. The second week is more of the same. From the 15th through the 22nd, it’s a grind of small, onshore, choppy conditions. The swell is there, but it’s all blown out. The combined energy is weak to moderate (100 to 400 range), and the wind just won’t give us a break.

The only real flicker of hope in the second week is a long-period pulse late on the 22nd and into the 23rd. A 1 ft swell from the NNW with a 16-second period shows up on Tuesday afternoon, but it’s tiny. The 23rd looks a bit better with a 3 ft swell from the NNW, period of 13 seconds, and a combined energy of 327. The wind is still onshore, though, so it’s a marginal call. For a river mouth like Hakalau, that long-period groundswell could be a bit straight, making it tricky. You’d be hoping for a tide and a miracle.

So, bottom line: Tuesday the 8th is your day. Get in the water early, because the rest of the 16-day window is a washout. The forecast is fairly reliable for the first few days, but the long-range stuff is a long shot. It’s a quiet period, and sometimes that’s just how it goes.

Rusty.

Short Range Forecast

Moderate rain (total 18mm), heaviest on Wed night. Warm (max 29°C on Tue morning, min 25°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Fri night. Warm (max 26°C on Sun morning, min 24°C on Fri night). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
2
0
0
0
0
0
1
0
1
1
0
0
2
0
1
2
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
NE
11
1.4
NE
10
0.9
E
13
0.9
E
13
0.8
E
12
1.4
ENE
7
1.3
ENE
7
1.4
ENE
7
1.3
ENE
11
1.1
ENE
11
1
ENE
11
0.9
ENE
10
0.7
ENE
10
0.8
NNE
8
0.9
NNE
9
0.8
NNE
9
0.8
NNE
9
0.9
ESE
8
1.1
NE
8
1
NE
8
0.9
NE
8
Wave Graph
Metric surfscale
Energy kJ
593
388
280
255
190
197
149
168
401
297
240
169
96
90
116
96
99
102
149
132
93
Wind (km/h)
5
SE
5
N
10
SE
20
ESE
20
ESE
15
ESE
10
E
15
ENE
10
ENE
15
E
10
E
10
ESE
15
ENE
10
ENE
5
E
10
ENE
10
NE
5
NNE
10
ENE
10
E
10
SE
Wind State
cross-on
glassy
cross
cross-on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
on
on
glassy
on
cross-on
glassy
on
on
cross-on
High Tide
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
4:11PM0.69m
Low Tide
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
10:54AM0.36m
10:33PM0.13m
part cloud
thunderstorm
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
rain showers
part cloud
part cloud
clear
rain showers
rain showers
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:28
6:27
6:25
6:25
6:24
6:23
 mm
2
1
2
9
1
2
1
3
1
2
1
Temp °C
29
29
28
27
27
26
26
26
25
25
25
25
25
25
25
26
26
26
27
27
26
Feels °C
34
34
33
29
28
29
29
28
27
27
27
28
27
26
29
29
29
30
31
31
29
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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