
Surf Forecasts:
Sixtynine surf forecast from 16 Jul 2026:
- Best quality surf: Thursday 16 Jul, 8PM (local time) - 2.5ft (0.8m), 14s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 16 Jul, 2PM (local time) - 2.5ft (0.8m), 15s period, W swell with 272 kJ wave energy.
- Next surfable swell (1★+): Thursday 16 Jul, 8PM (local time) - 2.5ft (0.8m), 14s period with W swell.
Best Forecast Surf Conditions for Sixtynine this week:
The surf forecast for Sixtynine over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 16) at 8PM. The primary swell is predicted to be 0.8m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sixtynine in the next 16 days are 0.8m 15s and forecast to arrive on Thursday (Jul 16) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Thursday (Jul 16) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 16th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 8PM (Thu 16th Jul) | 2.5ft (0.8m) 14s |
| Most Powerful | 2PM (Thu 16th Jul) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Sixtynine over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s be straight with you – this is a tough one. The next 16 days are looking pretty grim for a proper surf at Sixtynine. There’s a bit of a pulse coming through the opener, but it’s marginal at best, and then we’re staring down a long, flat stretch with nothing to get excited about until the very end of the month or early August.
The first bit of action arrives on Thursday, July 16th. We’ve got a long-period groundswell from the west, 3ft at 15 seconds, but the energy is weak (275). The water’s sitting at a warm 80°, which is about average for this time of year. Thursday morning starts clean with a light offshore wind, but the forecast warns of marginal surf or questionable tide conditions – it’s a real tease. By Thursday afternoon, the wind goes cross-on, and it’s still just that small, clean-ish swell. Friday the 17th drops to 2ft, and the wind is messy, cross-on and cross, making it poor. Saturday morning is cross-shore junk with 2ft, but Saturday afternoon goes glassy – still only 2ft and dropping energy (87), so it’s surfable but very ordinary. From Sunday the 19th through the rest of the month, the numbers just fall off a cliff. The swell drops below 1ft, and by Monday the 21st, we’re looking at flat, glassy conditions with no waves at all. That flat spell runs right through to the 28th of July – a solid week-plus of nothing.
Now, there’s a tiny flicker of life on the 28th of July, with a tiny 1ft SW swell, but it’s a short-period windswell, and the wind is onshore. Not worth a paddle. On Wednesday the 29th, we get a bit of a northerly swell, 2ft at 8 seconds, but it’s onshore, messy, and the energy is weak (68). Then on the 31st of July, there’s a 1.0ft pulse from the SW with a very long period of 17 seconds, but the energy is still tiny (47 and 52). The wind is light cross-on, so it’ll be clean, but with that size, it’s just a dribble. This long-period groundswell would be better off at a point or reef, but with only 1.0ft, it’s a non-event.
The one standout – and I use that word loosely – is the Saturday afternoon glass-off on the 18th of July. It’s the only time the wind truly cooperates with what little swell we have. But it’s 2ft, and it’s inconsistent. For a beginner, it’s safe, but for anyone else, it’s a board-stroking session. Honestly, the whole setup looks more interesting for a kite surfer than a paddle surfer, with that long period and small size.
So, we’ve got a couple of days of small, westerly groundswell to start, then a dead flat middle, and a tiny, hopeful uptick at the very end. It’s not good. Keep the board waxed, but don’t hold your breath. Forecasts can change, but this run is pretty normal for the area when it goes quiet.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Warm (max 28°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||
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) | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | NE 7 | SSW 26 | NE 7 | SSW 23 | SSW 22 |
Wave Graph | |||||||||||||||||||||
275 | 272 | 206 | 203 | 146 | 138 | 89 | 87 | 57 | 50 | 29 | 29 | 27 | 13 | 13 | 9 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | cross-on | cross | cross-off | cross | glassy | cross-off | cross | glassy | cross-off | cross-on | glassy | glassy | on | glassy | cross-off | cross-on | glassy | cross-off |
High Tide | 6:00PM0.78m | 6:33AM0.35m | 6:36PM0.70m | 7:32AM0.39m | 7:10PM0.61m | 8:35AM0.44m | 7:42PM0.51m | 9:42AM0.48m | 8:14PM0.41m | 10:49AM0.54m | 8:47PM0.32m | 11:51AM0.59m | 9:44PM0.25m | ||||||||
Low Tide | 10:55AM-0.02m | 1:02AM-0.00m | 11:47AM0.06m | 1:35AM0.00m | 12:43PM0.14m | 2:07AM0.01m | 1:51PM0.22m | 2:39AM0.02m | 3:21PM0.28m | 3:12AM0.03m | 5:30PM0.29m | 3:48AM0.04m | 7:48PM0.24m | 4:32AM0.04m | |||||||
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | 1 | — | — | — |
Temp °C | 28 | 27 | 26 | 29 | 28 | 26 | 28 | 29 | 26 | 28 | 27 | 25 | 27 | 27 | 25 | 28 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 30 | 29 | 29 | 31 | 30 | 29 | 30 | 31 | 29 | 30 | 30 | 28 | 29 | 30 | 29 | 30 | 30 | 28 | 29 | 31 | 27 |
Swell 1 Height (m) Direction Period (s) | W 15 | NNE 7 | NNE 7 | NNE 7 | NE 6 | NE 7 | NNE 7 | NE 5 | NNE 7 | NNE 6 | NNE 6 | NNE 8 | NNE 4 | NNE 5 | NE 7 | NNE 7 | NNE 5 | NNE 7 | NE 7 | NE 7 | NE 5 |
275 | 78 | 59 | 59 | 54 | 47 | 61 | 30 | 50 | 54 | 46 | 54 | 8 | 12 | 50 | 32 | 8 | 33 | 43 | 43 | 12 | |
Swell 2 Height (m) Direction Period (s) | NNE 7 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | NNE 7 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | NNE 7 | NNE 7 | WNW 12 | SSW 12 | NE 7 | SSW 12 | SSW 24 | SSW 23 | SSW 22 |
68 | 272 | 206 | 203 | 146 | 138 | 89 | 19 | 57 | 50 | 29 | 29 | 21 | 21 | 13 | 14 | 17 | 14 | 55 | 106 | 91 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 17 | SW 12 | SSW 16 | NNE 7 | SSW 15 | SW 15 | W 13 | ENE 8 | SW 11 | SW 11 | ENE 7 | WNW 12 | WNW 12 | SSW 13 | W 11 | SSW 12 | SSW 26 | SSW 16 | SSW 18 | SSW 17 |
42 | 75 | 22 | 25 | 18 | 21 | 8 | 87 | 6 | 5 | 5 | 5 | 27 | 13 | 17 | 9 | 13 | 65 | 24 | 30 | 28 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 3 | 0 | 3 | 3 | 0 | 5 | 0 | 29 | 94 | 94 | 38 | 92 | 88 | 82 | 92 | 88 | 5 | 5 | 105 | 38 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Sixtynine Surf forecast
The above surf forecast table for Sixtynine provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sixtynine can be found by selecting the local surf guide option on the grey menu. Our Sixtynine 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 (Sixtynine) 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 Sixtynine 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.
Sixtynine is 84 km (52 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.










