
Surf Forecasts:
Kawaihae Breakwater surf forecast from 1 Aug 2026:
- Most powerful swell: Saturday 1 Aug, 11AM (local time) - 1.5ft (0.4m), 14s period, SW swell with 49 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 0.4m 14s and forecast to arrive on Saturday (Aug 01) 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 1.1m 8s period and expected on Saturday (Aug 01) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sat 1st Aug) | 1.5ft (0.4m) 14s |
Table - best surf conditions forecast for Kawaihae Breakwater over the next 16 days.
The Lowdown
Alright mates, Rusty here. Let’s talk about what’s happening on our local beach. It’s a tough start, because the first week and a half is basically a bust. We’re looking at a long stretch of flat water before anything worth paddling out for shows up.
We’re talking about Kawaihae Breakwater. It’s a reef break, and we need the swell from the west to get it working. The water temperature is sitting at 81°, which is pretty normal for this time of year – no surprises there.
Here’s the deal. From Saturday the 1st right through to Sunday the 9th of August, you can leave the board in the car. The wave height is barely 0.7ft to 1ft, and the combined energy is weak, never hitting a triple-digit number. The wind is offshore or light, but it doesn’t matter because there’s just no power. That’s nine days of nothing.
Things finally start to change on Monday the 10th of August. We get a little 2ft west swell, with a 14-second period. The combined energy finally hits 101 (moderate wave energy). The wind goes glassy, so it’ll be clean, but it’s still just rideable, nothing special.
The one true standout comes on Wednesday the 13th of August. That’s the day. By morning, we’ve got 3ft of west swell, a 13-second period, and the combined energy jumps to 365 (moderate wave energy). The wind is light offshore, keeping the surface clean. The afternoon sees 3ft from the west-northwest, energy at 290, with offshore wind. That’s the best session of the whole forecast. Expect good surf conditions. Not huge, but for this spot, it’s a proper pulse with clean lines.
The swell stays rideable through the 14th and 15th, but it drops back to 2ft to 3ft. The energy stays moderate, and the wind is often glassy or light, so it’ll still be fun, but that Wednesday is the clear winner.
So, bottom line: A long, flat start. The best bet is Wednesday the 13th of August and the days that follow. Get after that clean, glassy west swell.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sun afternoon, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 28°C on Wed morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | SW 14 | SW 14 | SW 14 | NNE 6 | NE 8 | NE 8 | W 11 | NE 8 | W 12 | ENE 11 | W 11 | W 13 | W 13 | W 12 | W 12 | SSW 14 | W 12 | W 12 | SSW 14 | W 13 | SSW 13 |
Wave Graph | |||||||||||||||||||||
49 | 29 | 29 | 0 | 0 | 0 | 10 | 0 | 11 | 0 | 10 | 13 | 12 | 11 | 11 | 19 | 12 | 11 | 18 | 30 | 17 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | cross-off | off | cross-off | cross-off | off | off | cross-off |
High Tide | 5:56PM0.66m | 6:46AM0.42m | 6:25PM0.59m | 7:40AM0.47m | 6:56PM0.51m | 8:43AM0.52m | 7:30PM0.41m | 9:54AM0.57m | 8:12PM0.32m | 11:08AM0.63m | 9:29PM0.23m | 12:16PM0.69m | 11:28PM0.19m | ||||||||
Low Tide | 11:18AM0.08m | 00:46AM0.02m | 12:07PM0.14m | 1:13AM0.01m | 1:09PM0.20m | 1:44AM-0.00m | 2:34PM0.25m | 2:20AM-0.00m | 4:37PM0.27m | 3:05AM-0.01m | 6:57PM0.22m | 4:04AM-0.01m | 8:13PM0.15m | ||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | |
— | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 28 | 25 | 28 | 28 | 26 | 27 | 27 | 26 | 28 | 27 | 26 | 28 | 28 | 26 | 28 | 29 | 26 |
Feels °C | 26 | 26 | 24 | 28 | 29 | 26 | 30 | 32 | 29 | 30 | 31 | 30 | 32 | 31 | 30 | 31 | 32 | 29 | 30 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 8 | NNE 8 | NNE 6 | NE 8 | NNE 6 | NNE 6 | NNE 5 | NNE 6 | ENE 11 | NNE 6 | ENE 10 | NE 9 | NE 9 | NNE 5 | NE 8 | NE 5 | NE 5 | NE 5 | NE 6 | NE 5 |
77 | 128 | 103 | 44 | 50 | 31 | 25 | 17 | 31 | 47 | 12 | 39 | 53 | 40 | 8 | 10 | 30 | 14 | 20 | 60 | 23 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | NE 8 | N 7 | NE 8 | NE 8 | NE 8 | ENE 11 | NE 6 | ENE 11 | NNE 4 | W 13 | NNE 5 | NE 8 | W 13 | NE 8 | NE 7 | W 13 | W 13 | NE 7 |
49 | 29 | 29 | 35 | 31 | 31 | 30 | 16 | 51 | 11 | 45 | 7 | 12 | 3 | 18 | 13 | 9 | 8 | 14 | 30 | 14 | |
Swell 3 Height (m) Direction Period (s) | N 8 | E 14 | N 11 | N 10 | NE 5 | N 9 | W 11 | N 7 | W 12 | N 6 | W 11 | W 13 | NNE 9 | W 12 | W 12 | SSW 14 | W 12 | W 12 | SSW 14 | SSW 13 | SSW 13 |
5 | 4 | 9 | 16 | 16 | 6 | 10 | 4 | 11 | 7 | 10 | 13 | 8 | 11 | 11 | 19 | 12 | 11 | 18 | 18 | 17 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 46 | 35 | 88 | 35 | 35 | 86 | 91 | 46 | 86 | 87 | 55 | 87 | 49 | 49 | 88 | 88 | 46 | 88 | 50 | 46 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.











