Surf Forecasts:
Honokohau Harbour surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11AM (local time) - 3ft (0.9m), 13s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 11ft (3.5m), 8s period, NNE swell with 1,280 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 11AM (local time) - 3ft (0.9m), 13s period with SSW 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 12) at 11AM. The primary swell is predicted to be 0.9m and 13s period. 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 3.5m 8s and forecast to arrive on Saturday (Aug 15) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Wed 12th Aug) | 3ft (0.9m) 13s |
| Best Surf | 11AM (Wed 12th Aug) | 3ft (0.9m) 13s |
| Most Powerful | 8PM (Sat 15th Aug) | 11ft (3.5m) 8s |
Table - best surf conditions forecast for Honokohau Harbour over the next 16 days.
The Lowdown
Right, folks, Rusty here. We’re looking at a bit of a waiting game for Honokohau Harbour over the next 16 days. There isn't much to get excited about right now, but there are a few windows that’ll get the heart rate up.
The first real chance to wet a line comes in on Wednesday the 12th of August. The water’s sitting at a nice 82°F, which is a touch warmer than normal for this time of year, so you can leave the steamer at home. Wednesday morning is the standout early in the period. We’ve got a clean 3 ft swell pushing in from the SSW with a solid 13-second period. That long period means proper groundswell, good shape, and long gaps between sets making the paddle out easier. The wind is glassy, dead out of the west at just 3 mph. That’s the kind of morning you don’t sleep in for. Combined wave energy is sitting at 292, so moderate, but with those conditions it’ll feel like more. It’s a reef break, consistent, and fairly exposed to the swell, and the optimum direction here is WNW, so the SSW is a little off-angle but still works.
Thursday the 13th drops off significantly. The morning is a write-off with poor conditions, and the afternoon only offers a tiny 3 ft NNE windswell with a short 6-second period and glassy conditions. It’s surfable, but very ordinary.
Friday the 14th is similar, with a small 3 ft NNE swell and 5-second period in the morning. Glassy again, but that period is too short for any real power. It’s a poor afternoon as the wind swings onshore.
Then we get to the weekend. Saturday the 15th morning is where things get interesting again. We’ve got a 6 ft swell from the NNE, period at 7 seconds, and glassy winds out of the SSW. That’s a decent pulse of moderate energy (303), and clean. Not for beginners at that size, but solid. Saturday afternoon sees a jump to 8 ft from the NNE with clean cross-offshore winds, but the period stays short at 7 seconds. That’s pushing into expert-only territory due to the size, and the combined energy is strong at 661.
From Sunday the 16th onwards, it’s a long dry spell. The wind gets fresh and lumpy, and the surf quality plummets. There’s a significant gap from the 17th right through to the 22nd of August with little to no decent surf. The wind is almost constantly cross-onshore, making for messy, choppy conditions.
There’s a flicker of hope on the morning of Saturday the 22nd of August with a 1 ft SSW groundswell and a very long 19-second period, but the wind is cross-onshore and conditions are only marginal. The energy is moderate at 273, but that period is so long it might be a bit straight for the beachbreak nature of the harbour, better for a reef or point.
The most promising session of the whole outlook is actually very long range. On Monday the 24th of August in the afternoon, we have a 3 ft SSW swell with a 14-second period and the wind going onshore from the WSW. It’s only marginal due to the wind, but the combined wave energy is a very strong 714. It’s one to watch, but it’s over a week away, so take it with a grain of salt.
Tuesday the 25th of August morning gets a bit wild. We’ve got 4 ft SSW swell, 14-second period, but a 12 mph cross-onshore wind makes it a poor session. The energy is huge at 1054, but with that wind it’s more of a kite-surfing show than a paddle session.
After that, the last few days of the forecast window taper off into very small, weak swell with poor conditions.
So, to wrap it up: Wednesday morning the 12th is your best bet early on for that clean, glassy groundswell. Saturday morning the 15th is another solid option for the bigger, cleaner waves. A distant, less certain possibility is Monday the 24th afternoon, but that wind is going to be a factor.
Stay tuned, forecasts can change, and it won’t stay flat forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 50mm), heaviest during Sat night. Warm (max 29°C on Sat morning, min 25°C on Sat night). Winds increasing (calm on Sat morning, strong winds from the SSW by Sat night). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | SSW 13 | SSW 13 | WNW 12 | SSW 12 | NNE 6 | WNW 12 | NNE 5 | WNW 12 | NNE 7 | NNE 7 | NNE 7 | NNE 9 | NNE 8 | WNW 12 | S 15 | WNW 11 | NNE 6 | NNE 5 | WNW 11 | NNE 6 | WNW 13 |
Wave Graph | |||||||||||||||||||||
277 | 222 | 48 | 147 | 53 | 28 | 46 | 30 | 186 | 262 | 637 | 395 | 117 | 49 | 0 | 42 | 64 | 46 | 41 | 28 | 54 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-on | glassy | glassy | glassy | cross | cross-off | glassy | cross-off | cross-on | cross | cross | glassy | cross-on | cross-on | cross | cross-on | on | cross-on |
High Tide | 3:51PM0.77m | 4:06AM0.37m | 4:26PM0.72m | 4:52AM0.41m | 5:00PM0.64m | 5:39AM0.45m | 5:32PM0.56m | 6:30AM0.48m | 6:02PM0.48m | 7:25AM0.51m | 6:32PM0.40m | 8:28AM0.53m | 7:04PM0.33m | ||||||||
Low Tide | 8:48AM-0.01m | 10:47PM0.04m | 9:38AM0.02m | 11:16PM0.04m | 10:28AM0.07m | 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 | |||||||
6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 33 | 1 | 4 | 6 | 1 | 1 | 3 | — | 2 | 4 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 28 | 27 | 27 | 29 | 28 | 28 | 29 | 27 | 27 | 26 | 26 |
Feels °C | 31 | 31 | 30 | 31 | 31 | 30 | 30 | 30 | 30 | 33 | 29 | 27 | 25 | 30 | 31 | 31 | 31 | 31 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 17 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 | NNE 9 | NNE 8 | NNE 8 | S 15 | S 14 | NNE 6 | NNE 5 | S 13 | NNE 6 | NNE 6 |
620 | 586 | 1017 | 589 | 753 | 619 | 508 | 489 | 356 | 350 | 280 | 395 | 117 | 45 | 422 | 325 | 64 | 46 | 162 | 28 | 27 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | NNE 6 | NNE 6 | NNE 5 | NNE 6 | WNW 12 | NNE 5 | WNW 12 | W 12 | WNW 11 | S 18 | WNW 13 | S 16 | S 16 | S 5 | NE 7 | S 14 | S 13 | NNE 5 | S 13 | S 12 |
277 | 47 | 30 | 46 | 53 | 28 | 46 | 27 | 24 | 24 | 58 | 58 | 185 | 127 | 20 | 53 | 320 | 167 | 22 | 165 | 73 | |
Swell 3 Height (m) Direction Period (s) | NNE 5 | SSW 13 | WNW 12 | SSW 12 | WNW 12 | SW 18 | WNW 11 | SSW 17 | SW 17 | W 15 | WNW 11 | SW 16 | WNW 12 | WNW 12 | NE 8 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 13 |
15 | 222 | 48 | 147 | 27 | 13 | 25 | 30 | 12 | 17 | 24 | 10 | 52 | 49 | 29 | 42 | 41 | 41 | 41 | 24 | 54 | |
Wind waves Height (m) Direction Period (s) | — | — | N 5 | — | — | NNE 6 | — | NNE 6 | NNE 7 | NNE 7 | NNE 7 | S 18 | S 7 | S 7 | — | SSW 4 | WSW 4 | W 5 | WSW 2 | WSW 3 | — |
— | — | 21 | — | — | 88 | — | 70 | 186 | 262 | 637 | 1561 | 440 | 377 | — | 3 | 3 | 1 | 1 | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 113 | 0 | 87 | 0 | 6 | 0 | 7 | 0 | 0 | 6 | 452 | 67 | 47 | 7 | 100 | 113 | 2 | 104 | 104 | 14 |
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.











