Surf Forecasts:
Honokohau Harbour surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 2.5ft (0.7m), 17s period, SW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 5AM (local time) - 2.5ft (0.7m), 17s period, SW swell with 298 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 1.5ft (0.4m), 13s period with WNW 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 Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 0.4m and 13s period with a secondary swell of 0.6m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Honokohau Harbour in the next 16 days are 0.7m 17s and forecast to arrive on Friday (Aug 21) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Sunday (Aug 23) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 1.5ft (0.4m) 13s |
| Best Surf | 2AM (Fri 21st Aug) | 2.5ft (0.7m) 17s |
| Most Powerful | 5AM (Fri 21st Aug) | 2.5ft (0.7m) 17s |
Table - best surf conditions forecast for Honokohau Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. I’ve been staring at the charts for this stretch, and I’ve got to be straight with you: it’s a rough patch for surf. We’re looking at a long, lean period ahead. The first real surfable window is nearly two weeks out, on Monday the 31st. Before that, we’re dealing with a whole lot of small, weak, and messy conditions that just aren't worth your time or gas money. It’s a long stretch of “poor surf conditions,” so don’t hold your breath.
The spot to have on the radar is Honokohau Harbour (Big Island). Now, normally this reef can be a fun little wave, and the water temp is a normal 82°F, nothing weird there. But for this entire first week and a half, it’s a no-go. The swells are tiny, mostly between 1ft and 2ft, with periods in the 10-13 second range, and the energy is weak. We’re looking at combined swell energies mostly in the 60-290 range, which is just... nothing.
There’s a brief moment on Sunday the 23rd afternoon when the wind goes glassy and a 3ft NNE swell shows up with a 6-second period, but that short period means it’s just mess, and the energy is still only 138. It’s the definition of “ordinary.” Kite surfers might get a kick out of it, but for us paddle surfers, it’s a pass.
The south-ish winds are a persistent annoyance, keeping things cross-onshore or onshore. Lots of “light cross-onshore with small wind ripples” is what we’re seeing, which chops up the surface and ruins any chance of a clean ride. There’s a small push of energy mid-week around Tuesday the 25th (349-511 energy), but the size and winds are still junk, so it’s still not surfable.
Then, things start to get interesting. On Sunday, August 31st, a proper swell starts to build. Monday morning shows a solid 7ft SSW swell with a useful 11-second period, and the energy jumps to 1284. The winds are light and on, but it’s still listed as marginal.
The standout, the one you’ve been waiting for, is the afternoon of Monday, August 31st. The wind goes completely glassy, and we get a 6ft SSW swell with a good 11-second period. The combined wave energy surges to a strong 1489, and the forecast is calling for “excellent surf conditions for experienced surfers.” This is the one shining light in the whole window. Honokohau Harbour is fairly exposed to the WNW, but this SSW swell will be wrapping in nicely. That glassy wind will make it absolutely clean. For a solid, experienced surfer, this is your session. It won’t be a beginner wave at that size, but for the crew who knows what they’re doing, it’s going to be worth the wait.
After that, the swell drops back down. Tuesday and Wednesday back to the small stuff, though the Wednesday morning looks like it could have clean-ish 4ft waves. But by then, we’re just watching the back end of the swell. That Monday afternoon is the call. Don't waste your energy on the rest of it. This blank run has been brutal, but that one window shows this place can still fire. It’s a promising sign. But keep in mind, at this range, forecasts can change, so let's keep our fingers crossed.
Talk soon,
Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 26°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 18 | WNW 13 | W 12 | WNW 12 | SW 16 | SSW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SW 15 | WNW 12 | SSW 16 | SSW 15 | SW 14 | SSW 14 | SSW 13 | SSW 16 |
Wave Graph | ||||||||||||||||||||
80 | 54 | 73 | 47 | 130 | 209 | 143 | 284 | 127 | 121 | 261 | 162 | 112 | 156 | 144 | 126 | 100 | 161 | 156 | 149 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | cross-on | on | glassy | on | on | glassy | cross-on | cross-on | cross | cross-on | on | glassy | cross-on | glassy | glassy | on | cross-on | cross-off |
High Tide | 7:04PM0.33m | 9:39AM0.55m | 7:48PM0.27m | 10:50AM0.59m | 9:25PM0.24m | 11:51AM0.62m | 11:15PM0.23m | 12:41PM0.65m | 00:27AM0.25m | 1:23PM0.68m | 1:17AM0.27m | 1:59PM0.70m | 1:58AM0.30m | |||||||
Low Tide | 3:10PM0.27m | 1:45AM0.08m | 5:22PM0.26m | 2:34AM0.09m | 7:02PM0.23m | 3:38AM0.10m | 7:46PM0.19m | 4:47AM0.10m | 8:16PM0.16m | 5:47AM0.09m | 8:43PM0.14m | 6:38AM0.07m | 9:08PM0.12m | |||||||
— | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
Temp °C | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 27 | 27 | 26 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 31 | 30 | 30 | 31 | 32 | 31 | 30 | 30 | 29 | 31 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 13 | NNE 5 | S 12 | S 12 | NNE 6 | SSW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | SSW 15 | S 15 | NNE 6 | NNE 6 | NNE 7 |
121 | 18 | 71 | 72 | 24 | 209 | 143 | 284 | 127 | 121 | 261 | 44 | 44 | 68 | 55 | 126 | 109 | 55 | 73 | 68 | |
Swell 2 Height (m) Direction Period (s) | NNE 5 | S 12 | W 12 | NNE 5 | SW 16 | NNE 6 | NNE 7 | NNE 7 | WNW 10 | S 13 | NNE 6 | SSW 16 | W 10 | WNW 12 | WNW 11 | WNW 10 | SW 14 | SSW 14 | SSW 13 | SSW 12 |
16 | 69 | 73 | 10 | 130 | 16 | 18 | 27 | 35 | 85 | 36 | 162 | 51 | 156 | 105 | 38 | 100 | 161 | 156 | 89 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | WNW 13 | NNE 5 | WNW 12 | S 12 | WNW 11 | S 11 | S 11 | NNE 7 | W 10 | S 13 | W 10 | SW 15 | SSW 15 | SSW 16 | NW 12 | WNW 11 | NW 11 | NW 12 | SSW 16 |
80 | 54 | 10 | 47 | 44 | 40 | 20 | 37 | 18 | 54 | 126 | 52 | 112 | 150 | 144 | 35 | 44 | 30 | 35 | 149 | |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | — | — | — | — | — | S 3 | — | S 3 | — | — | NNE 6 | NNE 6 | SW 8 | SW 8 | — |
7 | — | — | — | — | — | — | — | — | — | 3 | — | 1 | — | — | 88 | 51 | 18 | 11 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 104 | 0 | 87 | 87 | 0 | 47 | 25 | 0 | 45 | 25 | 7 | 45 | 14 | 0 | 8 | 0 | 0 | 113 | 12 | 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.











