Surf Forecasts:
Kawaihae Breakwater surf forecast from 25 Jul 2026:
- Most powerful swell: Friday 31 Jul, 8PM (local time) - 1.5ft (0.4m), 15s period, SW swell with 57 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 15s and forecast to arrive on Friday (Jul 31) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 12s period and expected on Tuesday (Jul 28) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Fri 31st Jul) | 1.5ft (0.4m) 15s |
Table - best surf conditions forecast for Kawaihae Breakwater over the next 16 days.
The Lowdown
Alright, let me break it down for you. This is Rusty.
Looking straight at the next two weeks for Kawaihae Breakwater, I gotta be honest with you – it’s a pretty flat and quiet run. We’ve got a stretch of days with next to no rideable surf, and even when tiny pulses show up, the energy just isn’t there. There’s a long gap with nothing recommended until early August, so you’ll be waiting a while.
Saturday the 25th of July kicks things off, but it’s weak. You’ve got a tiny 0.7ft SSW swell with a very long 20-second period, but the combined energy is a measly 37 (weak energy). The wind is offshore and clean from the NE at 9 mph, but with that little water moving, it’s more of a paddle than a surf. That same tiny swell sticks around through the week, barely registering. By Wednesday the 29th, we see a short-period 1ft SW swell at 4 seconds, energy at just 4 (weak energy). It’s mostly cross-onshore too, so it’s messy.
The real standout, and I mean the *only* time you might want to paddle out, is Friday the 7th of August. A 1ft WNW swell rolls in with a 12-second period, giving a combined energy of 69 (still weak, but the best we see). It’s described as surfable but very ordinary. The wind is offshore and clean from the NNE at 6 mph, making for decent conditions on this reef setup. But don’t expect much power—this is a beginner-friendly wave at best.
Before that, Thursday the 6th of August morning shows similar 1ft WNW swell with a 13-second period, energy at 63 (weak), and clean offshore wind, but it’s still low-energy surf. The period is long, so the sets will be spread out, but the shape should be okay on this fairly exposed reef.
Overall, there’s no big swell coming. The water temp is about average for the time of year. Kawaihae Breakwater is fairly consistent, but even it can’t pull a decent wave out of this pattern. For the more experienced surfer, there’s nothing here that’ll get the heart pumping. If you’re a beginner, the tiny clean waves on the 7th could be a fun paddle. The lack of size and energy is the main story.
Stay patient, and check back. Forecasts can change.
- Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 24°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 29°C on Tue afternoon, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 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 20 | NNE 8 | SW 14 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ENE 13 | ENE 13 | NE 10 | SW 4 | SW 5 | SW 4 | SSW 18 | SW 18 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 25 | 37 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 9 | 1 | 31 | 49 | 42 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | cross-off | off | off | off | cross-off | on | cross-on | cross-off | off | off | off | cross-off |
High Tide | 00:54AM0.19m | 2:14PM0.70m | 1:52AM0.20m | 2:52PM0.72m | 2:37AM0.22m | 3:27PM0.74m | 3:16AM0.24m | 3:59PM0.76m | 3:54AM0.27m | 4:30PM0.76m | 4:33AM0.31m | 4:59PM0.74m | |||||||
Low Tide | 9:26PM0.14m | 6:18AM0.02m | 9:52PM0.11m | 7:09AM0.01m | 10:16PM0.09m | 7:56AM-0.01m | 10:41PM0.08m | 8:38AM-0.02m | 11:05PM0.06m | 9:17AM-0.02m | 11:30PM0.05m | 9:55AM-0.00m | 11:55PM0.04m | ||||||
 |  | | | | | | | |  |  | | | |  | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 7:02 | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — |
Temp °C | 25 | 27 | 27 | 26 | 27 | 27 | 25 | 27 | 28 | 26 | 28 | 29 | 27 | 28 | 27 | 26 | 28 | 28 | 26 |
Feels °C | 25 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 29 | 27 | 29 | 30 | 32 | 32 | 31 | 30 | 30 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 10 | NNE 8 | ENE 13 | ENE 13 | NE 10 | NNE 8 | NNE 8 | NE 8 | NE 7 | NE 7 | NE 6 |
| kJ | 70 | 133 | 162 | 126 | 116 | 120 | 91 | 93 | 27 | 98 | 187 | 421 | 420 | 90 | 48 | 96 | 67 | 112 | 70 |
Swell 2 Height (m) Direction Period (s) | SSW 20 | SSW 16 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | ENE 13 | ENE 13 | SSW 14 | SSW 14 | SSW 14 | ENE 10 | NE 8 | SSW 13 | SSW 18 | SW 18 | SW 16 |
| kJ | 76 | 51 | 102 | 60 | 86 | 84 | 48 | 42 | 34 | 59 | 37 | 39 | 37 | 36 | 35 | 31 | 31 | 49 | 42 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 20 | S 11 | SW 14 | E 14 | E 15 | E 14 | E 13 | SSW 14 | SSW 14 | — | — | — | SSW 14 | SW 5 | SW 4 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 25 | 37 | 2 | 8 | 16 | 17 | 16 | 31 | 41 | 41 | — | — | — | 36 | 9 | 1 | 14 | 14 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 8 | — | NNE 9 | NNE 8 | — | SW 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 110 | — | 165 | 134 | — | 4 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 35 | 35 | 35 | 35 | 88 | 88 | 35 | 86 | 46 | 35 | 50 | 50 | 21 | 23 | 23 | 35 | 86 | 98 | 35 |
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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