Surf Forecasts:
Sixtynine surf forecast from 10 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 8PM (local time) - 2.5ft (0.7m), 16s period, W swell with glassy winds.
- Most powerful swell: Wednesday 15 Jul, 8AM (local time) - 2.5ft (0.8m), 16s period, W swell with 314 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 11PM (local time) - 1.5ft (0.4m), 15s 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 Friday (Jul 10) at 11PM. The primary swell is predicted to be 0.4m and 15s 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 16s and forecast to arrive on Wednesday (Jul 15) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Saturday (Jul 11) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 10th Jul) | 1.5ft (0.4m) 15s |
| Best Surf | 8PM (Tue 14th Jul) | 2.5ft (0.7m) 16s |
| Most Powerful | 8AM (Wed 15th Jul) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Sixtynine over the next 16 days.
Alright, surfers, Rusty here. Let's get into it.
Well, this is a tough one to call. Looking at the whole 16-day stretch for Sixtynine, it’s shaping up to be a pretty flat and quiet period for the most part. The water’s sitting at a comfortable 80°, right about average for the time of year.
The first real pulse of energy we get isn’t until that Tuesday the 14th of July. Even then, the swell is only about 2 feet out of the West, but what makes it interesting is the period jumps to a very long 19 seconds. That’s proper groundswell energy, and the combined energy reading is a solid 251 (moderate wave energy). The wind goes glassy that afternoon with a whisper of a WNW breeze. The waves will be clean, but that long period will make it break a bit straight at a beach set-up. It’s not really a standout, just the first sign of life after a slow start.
After that, the swell builds a touch. Wednesday and Thursday the 15th and 16th see 3 foot West swell hanging around. The energy stays strong, with values around 302 to 310 (moderate wave energy). Winds are light on Thursday afternoon with the WNW going glassy again, and that’s when we get our best call of the whole forecast. It’s still small, but the conditions will be clean, and with that solid period and glassy water, it’s about as good as it’s going to get. That Thursday afternoon is the one to keep an eye on.
From Friday the 17th onward, it’s a slow fade. The swell drops back to 2 feet or less, energy levels fall off into the double digits, and there are a few days around the 20th to the 23rd of July where there’s just no swell at all. A total flat spell. If you’re a beginner, the whole period is fine as nothing gets above 3 feet, but for anyone wanting a real wave, Thursday the 16th afternoon is your window. It’s a long way out, so don’t bet the farm on it, but it’s the only real promise in the pack.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 24°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
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 13 | W 14 | W 13 | W 14 | W 14 | W 13 | W 13 | W 13 | W 12 | W 12 | W 12 | W 18 | W 19 | W 16 | W 17 | W 16 | W 15 | W 15 | W 15 | W 15 | W 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 31 | 37 | 29 | 61 | 64 | 55 | 30 | 28 | 26 | 26 | 26 | 162 | 251 | 198 | 270 | 310 | 302 | 291 | 275 | 272 | 206 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | glassy | cross-off | on | cross-on | glassy | cross-on | glassy | cross-off |
High Tide | 1:30PM0.77m | 00:46AM0.21m | 2:20PM0.83m | 1:57AM0.20m | 3:08PM0.87m | 2:58AM0.21m | 3:55PM0.89m | 3:53AM0.23m | 4:39PM0.88m | 4:46AM0.27m | 5:20PM0.84m | 5:38AM0.30m | 6:00PM0.78m | ||||||||
Low Tide | 9:02PM0.12m | 6:31AM-0.08m | 9:51PM0.07m | 7:27AM-0.10m | 10:33PM0.03m | 8:21AM-0.11m | 11:13PM0.01m | 9:14AM-0.10m | 11:51PM-0.00m | 10:05AM-0.07m | 00:27AM-0.01m | 10:55AM-0.02m | 1:02AM-0.00m | ||||||||
 |  |  | | | | | | | | | | |  |  | | | | | | | |
 | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 28 | 28 | 26 | 28 | 28 | 26 | 28 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 28 | 28 | 26 |
Feels °C | 29 | 29 | 27 | 29 | 28 | 27 | 29 | 28 | 26 | 27 | 28 | 26 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NNE 6 | W 13 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | SW 16 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | W 15 | NNE 7 | NE 6 | NNE 7 |
| kJ | 67 | 65 | 29 | 75 | 116 | 56 | 111 | 64 | 116 | 104 | 99 | 53 | 78 | 114 | 70 | 64 | 73 | 291 | 90 | 47 | 83 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 14 | NNE 8 | W 14 | W 14 | SW 17 | SW 16 | W 13 | SW 16 | SW 15 | SW 14 | W 18 | W 19 | W 16 | W 17 | W 16 | W 15 | NNE 7 | W 15 | W 15 | W 14 |
| kJ | 31 | 37 | 11 | 61 | 64 | 77 | 66 | 28 | 62 | 57 | 54 | 162 | 251 | 198 | 270 | 310 | 302 | 57 | 275 | 272 | 206 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | W 16 | SW 18 | SW 18 | W 13 | W 13 | S 10 | W 12 | W 12 | W 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | SW 13 | NNE 7 | SW 15 |
| kJ | 14 | 14 | 19 | 51 | 79 | 55 | 30 | 2 | 26 | 26 | 26 | 51 | 47 | 46 | 44 | 42 | 50 | 64 | 27 | 31 | 34 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 6 | — | — | — | — | NNE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 47 | — | — | — | — | 150 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 29 | 29 | 29 | 5 | 8 | 5 | 5 | 5 | 5 | 5 | 5 | 0 | 3 | 0 | 0 | 8 | 3 | 0 | 5 | 0 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sixtynine surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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