Surf Forecasts:
Kawaihae Breakwater surf forecast from 25 Aug 2026:
- Best quality surf: Monday 31 Aug, 2AM (local time) - 1.5ft (0.4m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 2AM (local time) - 1.5ft (0.4m), 15s period, SW swell with 58 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 2AM (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 Monday (Aug 31) at 2AM. The primary swell is predicted to be 0.4m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kawaihae Breakwater in the next 16 days are 0.4m 15s and forecast to arrive on Monday (Aug 31) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Monday (Aug 31) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 31st Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 2AM (Mon 31st Aug) | 1.5ft (0.4m) 15s |
| Most Powerful | 2AM (Mon 31st Aug) | 1.5ft (0.4m) 15s |
Table - best surf conditions forecast for Kawaihae Breakwater over the next 16 days.
The Lowdown
Alright folks, Rusty here with the lowdown on Kawaihae Breakwater. Gotta be honest, it’s gonna be a tough watch. We’ve got a major dry spell on the boards for the first week and a half. From August 24th all the way into early September, it’s basically flat or barely a ripple. Wave heights are down at 0.3ft to 0.7ft, with swell energy readings like 7 or 25 (real weak). The wind’s blowing offshore most of that time, which would be perfect if we had any ocean to work with, but we don’t. Water temps are around 82°, running about 2° warmer than usual for this time of year – nice for a swim, not for surfing.
There’s a tiny blip of hope around September 5th and 6th. That Saturday afternoon we see a little pulse: a 1ft swell out of the SW, with a long period of 18 seconds and the energy climbing to 83 (still weak, but it’s something). The wind goes glassy on Sunday morning, totally calm. For a reef break like this that’s only fairly consistent and can see a crowd, it’s a real bummer it’s so small. That long period (over 15 seconds) means it’ll have some push and shape, but it’s still only about knee-high. Surfable, but very average.
The whole thing fizzles out again right after. This is just one of those dead stretches for the area. No proper standout day in this whole 16-day window. If you’re keen, keep an eye on that glassy window on the 5th and 6th, but don’t drive out of your way for it.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 28°C on Tue morning, min 24°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 14 | SSW 15 | SSW 17 | SSW 13 | W 10 | SSW 12 | SSW 15 | SSW 14 | SSW 13 | W 10 | SSW 13 | SSW 17 | SSW 17 | SSW 16 | SSW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 26 | 25 | 24 | 21 | 21 | 27 | 17 | 8 | 14 | 0 | 0 | 18 | 8 | 16 | 28 | 27 | 25 | 22 | 58 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | off | off | off | off | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off |
High Tide | 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 | 4:52PM0.63m | 5:31AM0.53m | 5:21PM0.56m | |||||||
Low Tide | 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 | 10:34AM0.05m | 11:20PM-0.01m | 11:21AM0.09m | 11:45PM-0.02m | ||||||
 |  | |  | |  |  | | | | | | | | | | | | | |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | 6:45 | — | 6:44 | — | — | 6:43 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 28 | 26 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 26 |
Feels °C | 31 | 29 | 28 | 26 | 27 | 27 | 26 | 28 | 29 | 26 | 28 | 29 | 27 | 27 | 29 | 28 | 28 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NNE 5 | NNE 5 | NE 6 | SSW 13 | SSW 16 | NE 6 | SSW 15 | NNE 5 | NNE 6 | NE 6 | NNE 6 | NNE 6 | NE 6 | NNE 6 | NNE 7 | NNE 7 |
| kJ | 38 | 31 | 47 | 16 | 22 | 31 | 17 | 48 | 38 | 42 | 15 | 42 | 39 | 34 | 65 | 39 | 37 | 76 | 61 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 12 | SSW 14 | SSW 15 | SSW 17 | S 16 | ENE 7 | SSW 15 | N 7 | NNE 7 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 17 | SSW 16 | SSW 15 | SW 15 |
| kJ | 32 | 29 | 14 | 21 | 21 | 27 | 21 | 4 | 44 | 4 | 10 | 18 | 34 | 16 | 15 | 27 | 25 | 22 | 58 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 12 | W 11 | SSW 14 | ENE 7 | W 10 | SSW 12 | ENE 7 | SSW 14 | W 10 | W 10 | E 13 | SSW 17 | SSW 12 | S 12 | S 12 | W 11 |
| kJ | 26 | 25 | 24 | 14 | 9 | 18 | 5 | 8 | 14 | 4 | 39 | 8 | 8 | 14 | 28 | 14 | 11 | 11 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 5 | NNE 5 | — | NNE 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 15 | 16 | — | 9 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 46 | 88 | 91 | 46 | 46 | 54 | 46 | 88 | 65 | 50 | 88 | 88 | 66 | 88 | 65 | 35 | 88 | 54 | 0 |
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.
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