Surf Forecasts:
Honokohau Harbour surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 5AM (local time) - 6.5ft (2.0m), 7s period, NNE swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 11AM (local time) - 7ft (2.1m), 8s period, NNE swell with 519 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 5AM (local time) - 6.5ft (2.0m), 7s period with NNE swell.
Best Forecast Surf Conditions for Honokohau Harbour this week:
The surf forecast for Honokohau Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 5AM. The primary swell is predicted to be 2.0m and 7s period with a secondary swell of 0.3m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Honokohau Harbour in the next 16 days are 2.1m 8s and forecast to arrive on Saturday (Aug 15) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 15th Aug) | 6.5ft (2.0m) 7s |
| Best Surf | 5AM (Sat 15th Aug) | 6.5ft (2.0m) 7s |
| Most Powerful | 11AM (Sat 15th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Honokohau Harbour over the next 16 days.
The Lowdown
Alright, let’s break down what’s happening at Honokohau Harbour.
Right off the bat, it’s pretty bleak. No real surf for a solid stretch. The first bit of hope comes Saturday the 15th of August. That morning, you’ve got a clean 7ft swell from the North-Northeast, but only an 8-second period. Combined energy is moderate (559), so it has some push, but the short period makes it a bit fat. The cross-offshore breeze from the SSE at 9 mph will keep it tidy enough for intermediate surfers. That afternoon, the wind cranks onshore from the NNE at 22 mph, and it drops to a tiny 1ft – session over.
Then we hit a dead zone. From Sunday the 16th through Monday the 24th of August, it’s all tiny or no swell, cross-onshore winds, and choppy water. Energy values are nearly all below 100. That’s a proper blank run for over a week.
Now, the light at the end of the tunnel. Wednesday the 26th of August looks like the real standout. That morning sees a 3ft swell from the South-Southwest, but the period is a juicy 18 seconds – that’s very long period groundswell. The combined energy is a strong 774. The best part? The afternoon goes glassy, with a light WSW breeze at 3 mph. This reef break will be clean as glass. The optimum swell direction is West-Northwest, so this South-Southwest swell won’t be dead straight, but with that long period and glassy surface, you’ll get some real nice, shapey lines. Expect a bit of time between sets, and the power means it’s better for intermediate to expert crew. The crowds might roll in when it cleans up like this.
Thursday the 27th fades back to small, ragged surf. Friday the 28th of August morning, though, offers another chance. A 3ft South-Southwest swell with a 14-second period and glassy conditions from a light WSW wind. The energy is strong at 385. Not as potent as Wednesday, but still a clean, fun morning on the reef with likely light crowds.
After that, it’s back to small, short-period windswell and poor conditions through the end of the window.
So to sum it up: the absolute winner is Wednesday the 26th of August afternoon. That glass-off, long-period session is the one to plan for. Friday the 28th morning is a very solid second choice.
Water temperature is about average for the season here, nothing crazy.
Rusty.
Short Range ForecastHeavy rain (total 43mm), heaviest during Sat night. Warm (max 29°C on Sat morning, min 25°C on Sat afternoon). Winds increasing (calm on Fri night, severe gales from the SSE by Sat night). | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Warm (max 27°C on Mon night, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | NNE 7 | NNE 8 | W 11 | NNE 8 | S 7 | S 13 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | WNW 13 | WNW 13 | SW 16 | SW 16 | SW 16 | SSW 18 | SSW 17 | SW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 453 | 519 | 22 | 120 | 0 | 0 | 37 | 37 | 47 | 39 | 17 | 58 | 55 | 68 | 65 | 130 | 209 | 195 | 284 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross | on | cross-on | cross-off |
High Tide | 5:39AM0.45m | 5:32PM0.56m | 6:30AM0.48m | 6:02PM0.48m | 7:25AM0.51m | 6:32PM0.40m | 8:28AM0.53m | 7:04PM0.33m | 9:39AM0.55m | 7:48PM0.27m | 10:50AM0.59m | 9:25PM0.24m | |||||||
Low Tide | 11:43PM0.04m | 11:20AM0.13m | 00:10AM0.05m | 12:19PM0.19m | 00:37AM0.06m | 1:31PM0.24m | 1:08AM0.07m | 3:10PM0.27m | 1:45AM0.08m | 5:22PM0.26m | 2:34AM0.09m | 7:02PM0.23m | 3:38AM0.10m | ||||||
 |  |  |  |  | |  |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 6:52 | — | 6:52 | — | — | 6:51 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — |
mm | 4 | — | 8 | 26 | 1 | 1 | — | 1 | 2 | 2 | 2 | 2 | — | — | — | 1 | — | — | — |
Temp °C | 27 | 29 | 26 | 29 | 28 | 28 | 27 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 27 |
Feels °C | 31 | 31 | 25 | 23 | 30 | 33 | 30 | 31 | 32 | 31 | 29 | 29 | 29 | 29 | 30 | 29 | 30 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | NNE 8 | S 7 | S 6 | S 15 | S 14 | S 14 | S 13 | S 13 | NNE 5 | S 12 | S 12 | S 12 | NNE 6 | SSW 18 | NNE 6 | SW 17 |
| kJ | 289 | 350 | 284 | 120 | 220 | 89 | 422 | 329 | 320 | 219 | 123 | 30 | 100 | 71 | 72 | 23 | 209 | 27 | 284 |
Swell 2 Height (m) Direction Period (s) | W 12 | WNW 11 | S 18 | S 18 | S 13 | S 13 | S 5 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | S 13 | NNE 5 | SW 16 | WNW 12 | SW 16 | NNE 6 | SSW 17 | NNE 7 |
| kJ | 24 | 24 | 57 | 98 | 219 | 222 | 20 | 37 | 47 | 39 | 17 | 125 | 15 | 68 | 48 | 130 | 28 | 195 | 27 |
Swell 3 Height (m) Direction Period (s) | SW 17 | W 14 | W 11 | WNW 13 | NE 8 | NE 8 | NNE 7 | SSW 5 | WNW 11 | WNW 11 | SSE 7 | WNW 13 | WNW 13 | WNW 12 | SW 16 | S 12 | S 11 | S 11 | S 11 |
| kJ | 12 | 16 | 22 | 58 | 51 | 49 | 37 | 8 | 42 | 25 | 17 | 58 | 55 | 48 | 65 | 44 | 21 | 22 | 37 |
Wind waves Height (m) Direction Period (s) | NNE 7 | NNE 8 | NNE 8 | S 8 | S 6 | S 6 | NNE 7 | — | SW 4 | — | — | S 6 | — | N 5 | NE 5 | S 2 | — | — | SW 7 |
| kJ | 453 | 519 | 1390 | 1457 | 225 | 98 | 17 | — | 5 | — | — | 7 | — | 4 | 12 | 1 | — | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 7 | 42 | 69 | 7 | 9 | 104 | 104 | 113 | 113 | 104 | 99 | 45 | 6 | 12 | 47 | 87 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Honokohau Harbour Surf forecast
The above surf forecast table for Honokohau Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Honokohau Harbour can be found by selecting the local surf guide option on the grey menu. Our Honokohau Harbour 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 (Honokohau Harbour) 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 Honokohau Harbour 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.
Honokohau Harbour is 99 km (61 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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