
Surf Forecasts:
Sixtynine surf forecast from 23 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 11PM (local time) - 0.5ft (0.1m), 14s period, SW swell with 8 kJ wave energy.
Best Forecast Surf Conditions for Sixtynine this week:
The most powerful waves expected at Sixtynine in the next 16 days are 0.1m 14s and forecast to arrive on Saturday (Jul 25) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Saturday (Jul 25) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Sat 25th Jul) | 0.5ft (0.1m) 14s |
Table - best surf conditions forecast for Sixtynine over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up on the surf front. I gotta be straight with you – it’s a tough stretch. The next week and a half are looking pretty grim, with a real dry spell of no surf on offer from now all the way through to the end of July. We’re talking a solid gap of about 10 days of nothing worth paddling for. The water temp is sitting at 80°F which is pretty much normal for this time of year, so at least a dip won’t be a shock to the system.
The first chance of anything rideable shows up on the afternoon of the 30th of July. It’s only a tiny 1ft southwest swell, but with a very long period of 18 seconds. The wind goes glassy, so conditions will be clean. The combined swell energy is still weak at (49), so it’s not going to be a classic, but it’s a start.
As we roll into early August, things try to pick up a little. On the 2nd of August, the Sunday afternoon session at Sixtynine might be your best bet in the whole 16-day window. We’re looking at a 2ft west swell with a solid 12 second period, and the wind is cross-offshore, keeping it clean. The energy is building to moderate (74), so it’ll be surfable, even if it’s not pumping. The crowd situation at Sixtynine can be busy sometimes, so keep that in mind if you’re after a quiet paddle.
The 3rd of August, Monday afternoon, also has a similar 2ft west swell at 13 seconds with clean cross-offshore wind and moderate energy (92). That’s a close second to the Sunday session. It’s all pretty small stuff though, nothing over 5ft, so it’s fine for all levels. After that, the energy drops back off into weak territory through the rest of the week.
So, the standout is really the afternoon of Sunday the 2nd of August. It’s not a huge swell, but with the clean conditions, some period behind it, and that moderate energy, it’s the best on offer. The rest of the window is a waiting game.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 24°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 29°C on Sun afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | NE 7 | NNE 6 | NE 8 | NE 8 | NNE 8 | SW 14 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 9 | ENE 12 |
Wave Graph | |||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross | cross | glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | glassy | glassy | cross | cross | cross-off |
High Tide | 11:51AM0.59m | 9:44PM0.25m | 12:45PM0.63m | 11:28PM0.20m | 1:32PM0.66m | 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 | |||||||
Low Tide | 7:48PM0.24m | 4:32AM0.04m | 8:54PM0.19m | 5:23AM0.04m | 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 | ||||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 25 | 28 | 28 | 25 | 28 | 28 | 25 | 27 | 28 | 25 | 28 | 29 | 25 | 27 | 28 | 25 | 28 | 29 | 27 |
Feels °C | 30 | 30 | 27 | 28 | 29 | 26 | 27 | 29 | 26 | 27 | 29 | 27 | 28 | 29 | 26 | 28 | 29 | 27 | 28 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 6 | NNE 5 | NE 6 | NE 6 | NNE 7 | NE 7 | NNE 6 | NE 8 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ENE 13 | E 13 | NNE 8 |
11 | 47 | 17 | 39 | 51 | 38 | 69 | 63 | 84 | 133 | 130 | 98 | 93 | 126 | 98 | 91 | 88 | 103 | 56 | 85 | 78 | |
Swell 2 Height (m) Direction Period (s) | NE 7 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 20 | SSW 16 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | ENE 13 | ENE 13 | SSW 14 | SSW 14 | ENE 12 |
12 | 106 | 91 | 78 | 75 | 66 | 61 | 59 | 76 | 51 | 102 | 102 | 86 | 84 | 48 | 42 | 35 | 58 | 37 | 40 | 161 | |
Swell 3 Height (m) Direction Period (s) | SSW 24 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 13 | ENE 7 | SSW 16 | SSW 20 | S 11 | SW 14 | E 15 | E 14 | E 14 | E 14 | SSW 14 | SSW 14 | — | — | SSW 14 |
55 | 30 | 28 | 25 | 25 | 30 | 16 | 10 | 25 | 37 | 10 | 8 | 17 | 16 | 15 | 32 | 41 | 41 | — | — | 37 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 7 | NNE 9 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 86 | 141 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 94 | 42 | 94 | 88 | 88 | 88 | 29 | 29 | 94 | 88 | 29 | 88 | 29 | 38 | 94 | 94 | 29 | 42 | 42 | 29 |
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.










