Kawaihae Breakwater Surf Break

Lat Long: 20.05° N 155.84° W

Kawaihae Breakwater Surf Forecast and Surf Report

Issued: 7 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kawaihae Breakwater sea temperature is
27.2° 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 8 Aug 2026:

  • Most powerful swell: Wednesday 12 Aug, 5PM (local time) - 1ft (0.3m), 13s period, WNW swell with 33 kJ wave energy.

Best Forecast Surf Conditions for Kawaihae Breakwater this week:

The most powerful waves expected at Kawaihae Breakwater in the next 16 days are 0.3m 13s and forecast to arrive on Wednesday (Aug 12) 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 5.0m 8s period and expected on Saturday (Aug 15) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Wed 12th Aug)1ft (0.3m) 13s

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


The Lowdown

Alright folks, Rusty here. Let's take a good hard look at what's on the menu for the next couple of weeks. Honestly, it's a pretty quiet stretch for Kawaihae Breakwater (Hawaii). We've got a long, flat start and then some tiny, limp waves trying to show up, but it's mostly a waiting game.

Right now, through the start of the forecast, we're looking at a big gap with zero to ride. From Saturday the 8th through the end of the week on Friday the 14th, the waves are just too small and weak to even bother paddling out. The combined swell energy is barely a whisper, sitting at a lowly 48 or less (48). You'll see some glassy mornings and clean conditions, but with swell heights barely scraping 1 ft and a long period of 18 seconds, it's all show and no go. The water is sitting at a warm 81°, which is about average for the time of year.

The first real chance to get wet comes on Sunday, August 16th, but don't get your hopes up. The morning brings a small bump of 2 ft from the SW with a short period of 7 seconds, and a combined energy of 84. It's surfable but very ordinary, with cross-off winds from the NNW. The afternoon goes glassy again, but the swell drops back to nothing.

Things stay stubbornly small through the next week. From Monday the 17th into the following weekend, we're stuck with ankle-snappers at 1 ft to 1 ft. The best you can say is the wind is often offshore from the NE, keeping things clean. On Tuesday the 18th, we get a tiny pulse from the WNW with a long period of 15 seconds, giving us a combined energy of 70. It's a step in the right direction, but these are still poor surf conditions. By Thursday the 20th, we see a few 1 ft waves with glassy conditions in the morning and a combined energy of 75. That's about as good as it gets in this run, but it's still just a small, clean dribble.

The standout, if you can even call it that, is the morning of Thursday, August 20th. You've got a 1 ft swell from the WNW with a period of 11 seconds, but the kicker is the glassy conditions. It's the only time we get that perfect mirror finish on the water. For a tiny, clean log or a fun longboard session, that's your window. It's still tiny, but it's the most pleasant it's going to be.

Overall, this is a two-week stretch for doing other things. If you're desperate, the cleanest tiny waves are on the 20th, but it's a long way off and nothing to get excited about. The swell energy is weak across the board, so don't expect any power. It's a flat spell, plain and simple.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun afternoon. Warm (max 29°C on Mon morning, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Tue morning, min 25°C on Tue night). Wind will be generally light.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
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)
0
0
0
0
0
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)
0.2
SSW
18
0.2
SSW
18
0.2
SSW
18
0.3
W
13
0.3
W
12
0.3
W
12
0.3
W
11
0.3
W
11
0.2
SSW
16
0.2
W
10
0.3
W
12
0.3
W
13
0.3
W
11
0.3
WNW
13
0.3
WNW
12
0.3
WNW
12
0.9
NNE
6
0.2
W
12
0.2
W
12
0.2
W
12
0.2
W
12
Wave Graph
Metric surfscale
Energy kJ
32
31
30
28
25
23
21
21
24
8
25
29
22
33
28
28
0
11
10
12
12
Wind (km/h)
15
NNE
20
ENE
10
ENE
5
N
5
NNE
10
ENE
10
NNE
5
NE
15
ENE
15
NE
5
NE
15
ENE
10
NNE
15
NE
15
NE
20
NE
20
NE
10
ENE
30
NE
30
NE
35
ENE
Wind State
off
off
cross-off
glassy
glassy
cross-off
cross-off
off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
off
off
High Tide
1:16PM0.76m
1:00AM0.19m
2:08PM0.80m
2:05AM0.23m
2:55PM0.83m
2:57AM0.27m
3:37PM0.84m
3:45AM0.33m
4:16PM0.81m
4:30AM0.38m
4:52PM0.76m
5:16AM0.44m
5:25PM0.69m
Low Tide
8:57PM0.09m
6:24AM-0.04m
9:32PM0.05m
7:27AM-0.07m
10:05PM0.02m
8:23AM-0.08m
10:36PM0.00m
9:15AM-0.06m
11:06PM-0.01m
10:03AM-0.03m
11:35PM-0.01m
10:52AM0.02m
00:02AM-0.01m
part cloud
part cloud
clear
clear
rain showers
clear
clear
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:01
6:01
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:55
6:54
6:53
6:53
6:52
6:52
 mm
1
3
Temp °C
28
28
26
28
28
27
29
29
27
28
28
26
28
28
26
28
28
26
28
28
27
Feels °C
29
29
28
32
32
31
31
32
30
29
29
28
28
29
27
28
27
26
27
28
25
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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