Kawaihae Breakwater Surf Break

Lat Long: 20.05° N 155.84° W

Kawaihae Breakwater Surf Forecast and Surf Report

Issued: 1 am 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kawaihae Breakwater sea temperature is
27.7°C
0.9° 

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


Kawaihae Breakwater surf forecast from 11 Sep 2026:

  • Best quality surf: Friday 11 Sep, 5PM (local time) - 1.5ft (0.4m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 5PM (local time) - 1.5ft (0.5m), 18s period, SW swell with 152 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 5PM (local time) - 1.5ft (0.4m), 15s period with SW swell.

Best Forecast Surf Conditions for Kawaihae Breakwater this week:

The surf forecast for Kawaihae Breakwater over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 5PM. The primary swell is predicted to be 0.4m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Kawaihae Breakwater in the next 16 days are 0.5m 18s and forecast to arrive on Wednesday (Sep 16) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Thursday (Sep 17) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Fri 11th Sep)1.5ft (0.4m) 15s
Best Surf 5PM (Fri 11th Sep)1.5ft (0.4m) 15s
Most Powerful 5PM (Wed 16th Sep)1.5ft (0.5m) 18s

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


The Lowdown

Alright folks, let’s be real – the surf is flat out there. We’ve got one spot on the map, Kawaihae Breakwater, and it’s going to be a test of patience for the next couple of weeks. We’re looking at a whole bunch of nothing for a while.

Early on, we’re talking knee-high dribble at best. The wave energy is weak, with combined energy readings only in the 30s and 70s range. The swell is from the SW, with a long period of 14 to 15 seconds, but there’s just no size. Friday the 11th has a tiny 1ft wave with a decent period, but it’s not going to get the heart pumping. The wind is light and sometimes glassy, so it’ll be clean, but it’s still just a wavelet.

This weekend is even smaller, dropping to 0.7ft on Sunday. The energy is down in the 30s. You’re better off buying a new board than paddling out for that. The water temp is 82°, which is about 2° warmer than usual – not a big deal, just a little warm for the season. The first thing that gets a pulse going is Tuesday the 15th morning, when the energy jumps to 106, the first three-digit number we see. The swell is still only 1ft, but that long 20-second period gives it some push. It’s a groundswell, but at this size, it’s still gutless. The glassy conditions early will make it look pretty, but it’s still just a knee-slapper.

By Wednesday afternoon the 16th, we get the biggest reading of the whole run – a whole 2ft with an 18-second period and energy up to 155. The offshore NE wind is a gentle 9 mph, so it’ll be clean with a bit of punch. This is the best it gets, and honestly, the take-off zone at a breakwater reef like this might have a little shape on it. But it's still not what anyone would call a good day.

From there, it’s a slow grind. The energy goes up and down, but never really gets anywhere. The 18th has a couple of mornings with 108 energy and glassy conditions, still at 1ft to 2ft, but the period drops to 17 seconds. There’s a mention of a risk of thunderstorms on the afternoon of the 18th, but the wind goes calm, so if you’re desperate, that might be a window for some clean, albeit tiny, waves.

For the last stretch from the 20th on, it fades again. We’re back to 0.7ft to 1ft with weak energy, mostly in the 30s to 60s. There’s a little blip on the 26th with a 1ft W swell and 93 energy, but it’s nothing to write home about. The consistency is only “fairly consistent” at best, and at this size, that just means there are tiny waves, not that there are good ones.

So, the bottom line: if you absolutely have to get wet, the afternoon of Wednesday the 16th or the morning of Thursday the 18th are the least-bad options, but they’re not standouts. Just small, clean, long-period swells at a reef break. Any bigger swell over 8ft would be experts-only, but we are nowhere near that. This is a time to work on your tan or go for a swim, but not to expect any glory. Forecasts can change, but this looks like a flat spell for the books.

Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri morning, min 24°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Wed morning, min 25°C on Mon morning). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
ENE
11
0.4
SW
15
0.4
SW
15
0.4
SW
15
0.3
SW
14
0.3
SW
14
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
W
10
0.2
SSW
22
0.2
SSW
21
0.4
SW
20
0.4
SW
19
0.4
SW
19
0.4
SW
18
0.5
SW
18
0.4
SW
17
0.4
SW
16
0.4
SW
16
0.5
SW
17
Wave Graph
Metric surfscale
Energy kJ
0
57
57
60
29
29
22
21
20
8
46
45
98
96
94
79
152
75
65
64
148
Wind (km/h)
5
NE
5
NE
5
ENE
5
NNW
0
NNE
5
ENE
5
N
5
NE
15
ENE
10
NNE
5
NE
5
NE
5
NNE
5
NE
10
ENE
10
NE
15
NE
10
ENE
10
NE
10
NE
15
ENE
Wind State
glassy
off
glassy
glassy
glassy
cross-off
cross-off
off
off
off
off
off
glassy
off
off
off
off
off
off
off
off
High Tide
4:16PM0.63m
4:50AM0.58m
4:46PM0.55m
5:28AM0.61m
5:15PM0.47m
6:08AM0.62m
5:43PM0.39m
6:50AM0.62m
6:10PM0.32m
7:39AM0.59m
6:37PM0.25m
8:41AM0.57m
7:08PM0.20m
Low Tide
10:03AM0.02m
10:37PM-0.02m
10:50AM0.06m
11:00PM-0.01m
11:39AM0.10m
11:22PM-0.00m
12:31PM0.14m
11:45PM0.02m
1:34PM0.18m
00:09AM0.04m
3:00PM0.20m
00:37AM0.07m
5:26PM0.20m
1:16AM0.10m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:28
6:28
6:27
6:25
6:24
6:23
 mm
1
Temp °C
27
27
26
27
27
26
27
27
26
28
28
26
28
28
27
29
28
27
29
28
27
Feels °C
30
31
29
30
30
29
30
29
28
30
31
29
32
31
30
32
31
30
32
31
30
  • Map Icons:
  • Break
  • 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 Kawaihae Breakwater Surf forecast

The above surf forecast table for Kawaihae Breakwater provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kawaihae Breakwater can be found by selecting the local surf guide option on the grey menu. Our Kawaihae Breakwater 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 (Kawaihae Breakwater) 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 Kawaihae Breakwater 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.

Kawaihae Breakwater is 87 km (54 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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