Kawaihae Breakwater Surf Break

Lat Long: 20.05° N 155.84° W

Kawaihae Breakwater Surf Forecast and Surf Report

Issued: 1 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kawaihae Breakwater sea temperature is
27.4°C
0.8° 

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 23 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 8PM (local time) - 1.5ft (0.4m), 16s period, SW swell with offshore winds.
  • Most powerful swell: Sunday 23 Aug, 11AM (local time) - 1.5ft (0.5m), 12s period, WNW swell with 75 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 8PM (local time) - 1.5ft (0.4m), 16s 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 Saturday (Aug 22) at 8PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.5m and 10s. 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 12s and forecast to arrive on Sunday (Aug 23) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Aug 22) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 22nd Aug)1.5ft (0.4m) 16s
Best Surf 8PM (Sat 22nd Aug)1.5ft (0.4m) 16s
Most Powerful11AM (Sun 23rd Aug)1.5ft (0.5m) 12s

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


The Lowdown

Alright, Rusty here. Let's talk about what's on offer for the next couple of weeks.

Right off the bat, I gotta be straight with you – it's a slow start. The first real nod towards anything surfable kicks off this Saturday afternoon, the 22nd of August, at Kawaihae Breakwater. We're looking at a tiny 1ft swell from the SW, but the real story here is the long period. We're talking 16 seconds, which is proper groundswell. That kind of energy, even at this size, will make for some surprisingly fun, lined-up waves on this reef. The water is sitting at 81°F, which is pretty much normal for this time of year. The NE wind is offshore, keeping things clean, but the combined energy is weak at 120.

Sunday the 23rd is a bit similar. The morning sees a 2ft swell from the WNW with a 12-second period, and a moderate offshore breeze (12 mph). The energy is still moderate-weak (117). The afternoon drops to 1ft and 11 seconds, but gets a lighter breeze. It's still surfable, but nothing to write home about.

Then we hit a dry spell. From Monday the 24th of August all the way through to Friday the 4th of September, the waves just disappear. The swell drops to 0.7ft or less, and for a lot of that time, it's flat with zero energy. The winds are often offshore or glassy, which is a tease, but with no swell, it's just a calm ocean. That's a solid 12-day gap with no real recommendations.

Things finally start to wake up again on the 5th of September. The Saturday morning shows a 1.0ft swell from the WNW, but by the afternoon, it's still only 1.0ft with a 76 energy. It's a whisper.

The best of the bunch, and the only real standout, comes on Sunday the 6th of September. The morning sees a 2ft swell from the W, with a 13-second period. The energy jumps to 167, which is moderate. The afternoon is the pick: a 2ft W swell, with 13-second periods, and a light 6 mph offshore breeze from the NE. The energy is 200, the highest of the whole forecast. This is a clean, offshore window with a little bit of push. It's a reef break, so that long-period groundswell will wrap in nicely. It's the best looking session of the lot.

So, the story is: a couple of small, long-period groundswell days this weekend, then a long flat spell, then a slightly better day on the 6th of September. Keep your expectations low, but that Sunday afternoon might just surprise you.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Tue afternoon, min 24°C on Tue night). Wind will be generally light.

Sat
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
16
0.4
SW
15
0.5
WNW
12
0.4
WNW
11
0.3
WNW
10
0.2
SSW
13
0.1
NW
11
0.7
NE
6
0.2
SSW
16
0.2
SSW
16
0.2
SSW
14
0.2
SSW
15
0.2
SSW
17
0.2
SSW
13
0.2
SSW
16
0.2
SSW
12
0.3
SSW
15
0.1
SW
11
0.2
SSW
13
0.2
W
10
Wave Graph
Metric surfscale
Energy kJ
63
58
75
44
20
18
5
0
25
24
21
21
28
17
24
14
0
4
18
7
Wind (km/h)
15
NE
10
ENE
20
NE
10
NE
10
ENE
0
N
10
ENE
15
ENE
15
NE
15
ENE
20
ENE
10
NE
15
NE
15
ENE
15
NE
10
NE
15
ENE
10
NE
10
NE
20
ENE
Wind State
off
cross-off
off
off
cross-off
glassy
off
cross-off
off
off
off
off
off
cross-off
off
off
off
off
off
off
High Tide
1:02AM0.20m
1:49PM0.66m
1:48AM0.23m
2:26PM0.69m
2:25AM0.28m
2:59PM0.71m
3:00AM0.33m
3:28PM0.72m
3:36AM0.38m
3:56PM0.71m
4:12AM0.43m
4:24PM0.68m
4:50AM0.48m
Low Tide
8:53PM0.12m
6:05AM0.06m
9:13PM0.10m
7:02AM0.04m
9:33PM0.09m
7:49AM0.01m
9:53PM0.07m
8:30AM0.00m
10:13PM0.05m
9:11AM0.01m
10:35PM0.03m
9:51AM0.02m
10:57PM0.01m
clear
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
6:44
6:43
6:43
6:42
 mm
2
1
Temp °C
29
27
27
28
27
28
28
27
28
28
26
27
28
25
27
28
25
27
28
26
Feels °C
33
29
28
30
30
33
33
30
30
31
26
29
30
26
28
29
26
28
30
27
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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 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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