Surf Forecasts:
Keaulanas surf forecast from 9 Jul 2026:
- Best quality surf: Sunday 12 Jul, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with offshore winds.
- Most powerful swell: Sunday 12 Jul, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with 439 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 5AM (local time) - 1.5ft (0.5m), 12s period with S swell.
Best Forecast Surf Conditions for Keaulanas this week:
The surf forecast for Keaulanas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 10) at 5AM. The primary swell is predicted to be 0.5m and 12s period with a secondary swell of 0.3m and 13s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 0.9m 17s and forecast to arrive on Sunday (Jul 12) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Thursday (Jul 09) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 10th Jul) | 1.5ft (0.5m) 12s |
| Best Surf | 2AM (Sun 12th Jul) | 3ft (0.9m) 17s |
| Most Powerful | 2AM (Sun 12th Jul) | 3ft (0.9m) 17s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Keaulanas over the next couple of weeks.
Honestly, the outlook is a bit of a grind for the most part. We’ve got a real dry spell comin’ up, with hardly any decent surf for the first 11 days or so. Swell energy is weak to moderate at best, and the wind is mostly cross-off or just cross, which isn’t doing us any favours for clean, lined-up waves. There’s a big gap from now until around the 20th of July where you’ll be fightin’ for scraps.
The real standout, the one that’s got my heart beatin’ a little faster, is the Monday 20th of July. Both morning and afternoon are lookin’ good. We’ll see a clean 3 ft to 2 ft S swell, with a nice long period of 17 to 18 seconds – that’s proper groundswell energy. The wind will be off, which is a major bonus for Keaulanas, so expect glassy, clean conditions. The combined energy is solid (449 to 414), so there’ll be some push in the water. This is the best we’ll see all fortnight.
The next best option, though it’s a step down, is the Tuesday 21st of July morning. The swell picks up a touch to 3 ft from the S, with a 15-second period. The energy is there (538), and the wind is cross-off, so it’ll be clean. It’s a little more marginal on the tide, but if you’re keen, it’s worth a paddle.
For the rest of the period, it’s pretty bleak. The wind stays stiff and cross-off, and the swell drops back to tiny, short-period junk. The water temperature is about average for the time of year, so no surprises there.
Keep your eyes on that 20th and 21st of July. That’s where the magic is.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 24°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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) | S 12 | S 12 | S 12 | S 12 | SW 21 | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | W 15 | W 15 | W 15 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 112 | 110 | 75 | 70 | 108 | 184 | 218 | 316 | 439 | 376 | 367 | 353 | 322 | 309 | 261 | 239 | 257 | 229 | 291 | 283 | 314 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 12:38PM0.65m | 10:21PM0.26m | 1:28PM0.73m | 00:04AM0.22m | 2:15PM0.79m | 1:22AM0.21m | 3:01PM0.83m | 2:25AM0.22m | 3:45PM0.84m | 3:22AM0.24m | 4:27PM0.83m | 4:16AM0.26m | 5:06PM0.79m | ||||||||
Low Tide | 8:47PM0.26m | 5:14AM0.03m | 9:30PM0.20m | 6:08AM0.00m | 10:06PM0.16m | 7:03AM-0.02m | 10:41PM0.13m | 7:56AM-0.03m | 11:16PM0.12m | 8:47AM-0.02m | 11:49PM0.11m | 9:36AM0.01m | 00:21AM0.10m | ||||||||
 | |  | | | | | | | | | | |  | | | | | | |  | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 27 | 24 | 26 | 27 | 25 | 26 | 27 | 25 |
Feels °C | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 25 | 23 | 25 | 23 | 25 | 26 | 24 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | NE 7 | S 12 | N 6 | S 12 | SSW 11 | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | NE 7 | SSW 14 | SSW 14 | W 15 | W 15 | W 15 | SSW 16 |
| kJ | 121 | 110 | 28 | 70 | 40 | 184 | 218 | 316 | 439 | 376 | 367 | 353 | 322 | 309 | 75 | 239 | 232 | 229 | 291 | 283 | 314 |
Swell 2 Height (m) Direction Period (s) | S 12 | SE 8 | S 12 | SSE 8 | SW 21 | S 11 | W 14 | W 13 | W 13 | SSE 11 | SSE 12 | SE 8 | SSE 12 | W 18 | SSW 14 | W 16 | W 16 | SW 13 | SW 13 | SW 14 | W 15 |
| kJ | 112 | 15 | 75 | 6 | 108 | 40 | 63 | 54 | 54 | 41 | 28 | 18 | 27 | 96 | 261 | 190 | 257 | 170 | 164 | 206 | 279 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | W 14 | W 13 | SSW 21 | S 13 | W 13 | S 12 | S 12 | S 11 | W 12 | W 12 | SSE 12 | W 19 | SSE 11 | W 18 | SW 19 | SW 19 | SSW 17 | SSW 18 | SSW 18 | SSE 9 |
| kJ | 12 | 33 | 13 | 45 | 29 | 55 | 44 | 44 | 22 | 27 | 26 | 47 | 64 | 25 | 152 | 183 | 93 | 197 | 207 | 211 | 15 |
Wind waves Height (m) Direction Period (s) | ENE 8 | NE 7 | ENE 7 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NNE 8 | NE 7 | NE 7 | E 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 |
| kJ | 251 | 115 | 77 | 79 | 78 | 97 | 156 | 139 | 143 | 179 | 210 | 208 | 156 | 127 | 191 | 102 | 130 | 121 | 115 | 91 | 139 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 13 | 16 | 0 | 9 | 0 | 9 | 6 | 0 | 6 | 16 | 2 | 2 | 0 | 2 | 2 | 6 | 2 | 2 | 5 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Keaulanas Surf forecast
The above surf forecast table for Keaulanas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Keaulanas can be found by selecting the local surf guide option on the grey menu. Our Keaulanas 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 (Keaulanas) 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 Keaulanas 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.
Keaulanas is 7 km (4 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.
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