Surf Forecasts:
Keaulanas surf forecast from 28 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 2AM (local time) - 2.5ft (0.7m), 14s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 29 Jul, 8PM (local time) - 2.5ft (0.8m), 14s period, SSW swell with 269 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 2AM (local time) - 2.5ft (0.7m), 14s period with SSW 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 Tuesday (Jul 28) at 2AM. The primary swell is predicted to be 0.7m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 0.8m 14s and forecast to arrive on Wednesday (Jul 29) at 8PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 9s period and expected on Wednesday (Jul 29) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 28th Jul) | 2.5ft (0.7m) 14s |
| Best Surf | 2AM (Tue 28th Jul) | 2.5ft (0.7m) 14s |
| Most Powerful | 8PM (Wed 29th Jul) | 2.5ft (0.8m) 14s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
The Lowdown
Alright, let’s get into the skinny on Keaulanas. It’s a beach and reef spot that’s consistent, exposed to whatever swell comes in, and the water temp is about normal for the season.
Right now, Tuesday the 28th is a bit of a dud. You’ve got 0.7m of SSW swell, but the wind is a moderate offshore at 20 km/h. The combined energy is moderate (197), and yeah, it’s surfable, but it’s just ordinary. Not worth getting excited about.
Wednesday the 29th is even worse. The wind goes cross-shore and then cross-onshore, and the swell quality tanks. The energy picks up a bit, but the wind kills it. Leave it.
Thursday the 30th is the one to aim for. The morning is clean with 0.8m of S swell, a 13-second period, and a light cross-offshore breeze at just 5 km/h. The combined energy is moderate (383), and the forecast says “expect good surf conditions.” The afternoon is just as clean with a gentle breeze. This is the clear standout of the early week. It’s not big, but it’ll be fun and clean. Crowds are possible, so paddle out early.
From Friday the 31st all the way through to Sunday the 9th of August, the surf goes flat. The swell drops to 0.4m to 0.6m, and the wind is howling from the ENE at 30 to 40 km/h. The combined energy drops to as low as 46 (very weak). It’s a long, blank stretch. The wind is offshore or cross-offshore, but the waves are just not there. It’s a normal dry spell for this area.
Then, looking ahead to Monday the 10th of August, there’s a pulse. The swell comes up to 1.0m from the SSW with a 16-second period, and the combined energy is a strong 601. The wind is a moderate cross-offshore at 25 km/h. The conditions are “marginal surf forecast or questionable tide conditions,” but the energy is real. Tuesday the 11th is similar, with 1.1m of S swell and a 15-second period, and the energy is very strong at 753. The wind stays moderate cross-offshore. This is a promising long-range look, but it’s not locked in. The long period (15-16 seconds) will give the waves more grunt and shape, but at a beach break like Keaulanas, it can get a bit too straight and walled-up. It’s for the experienced crew.
The true best on offer is Thursday the 30th of July. It’s the only day with clean, cross-offshore wind and a decent little wave. The 10th and 11th of August are worth watching – if the tide and wind play ball, it could be the best of the second week.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 28°C on Tue afternoon, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 25°C on Thu night). Winds increasing (light winds from the ENE on Thu night, strong winds from the ENE by Sat morning). | ||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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 14 | SSW 14 | SSW 13 | SSW 13 | S 14 | S 14 | S 14 | S 13 | SSW 18 | S 13 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 213 | 189 | 187 | 98 | 203 | 200 | 243 | 229 | 222 | 212 | 261 | 236 | 220 | 153 | 123 | 131 | 133 | 85 | 42 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off |
High Tide | 2:49AM0.25m | 3:50PM0.72m | 3:28AM0.27m | 4:18PM0.72m | 4:07AM0.30m | 4:45PM0.70m | 4:50AM0.33m | 5:11PM0.66m | 5:36AM0.37m | 5:35PM0.61m | 6:28AM0.40m | 5:58PM0.54m | |||||||
Low Tide | 10:44PM0.15m | 8:15AM0.04m | 11:05PM0.15m | 8:53AM0.04m | 11:26PM0.14m | 9:30AM0.07m | 11:47PM0.13m | 10:08AM0.10m | 00:07AM0.12m | 10:50AM0.16m | 00:28AM0.11m | 11:40AM0.22m | 00:51AM0.10m | ||||||
 |  | |  | | |  | | | | | | | |  | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:14 | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — |
mm | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 27 | 28 | 26 | 27 | 27 | 26 | 27 | 28 | 26 | 28 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 25 | 28 | 29 | 27 | 29 | 30 | 30 | 30 | 30 | 27 | 26 | 25 | 24 | 22 | 22 | 23 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | ENE 12 | NE 10 | N 7 | N 7 | NE 7 | S 13 | S 13 | S 12 | SW 15 | SW 15 | SW 14 | SSW 14 | SSW 14 | SSW 14 | ENE 8 | SW 13 |
| kJ | 213 | 189 | 187 | 250 | 400 | 124 | 73 | 77 | 222 | 212 | 148 | 236 | 220 | 153 | 123 | 131 | 133 | 67 | 42 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | SSW 13 | S 14 | ENE 9 | S 14 | S 13 | SSW 18 | SW 16 | SW 16 | S 12 | S 12 | S 12 | SE 8 | SSE 8 | N 9 | SW 13 | SSW 13 |
| kJ | 56 | 126 | 166 | 98 | 203 | 106 | 243 | 229 | 207 | 211 | 261 | 106 | 71 | 42 | 28 | 14 | 14 | 85 | 34 |
Swell 3 Height (m) Direction Period (s) | NE 10 | S 10 | SE 10 | SSW 15 | SW 21 | S 14 | ENE 8 | SW 18 | E 7 | NNE 9 | N 9 | N 8 | N 8 | SSE 10 | S 11 | N 10 | SSE 5 | N 8 | N 8 |
| kJ | 25 | 8 | 4 | 75 | 17 | 200 | 40 | 154 | 28 | 45 | 23 | 12 | 11 | 10 | 39 | 17 | 5 | 13 | 11 |
Wind waves Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 5 | NNE 6 | N 6 | — | — | — | — | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 7 | ENE 8 | NE 7 | NNE 6 | NE 7 |
| kJ | 180 | 138 | 83 | 74 | 45 | — | — | — | — | 168 | 61 | 84 | 139 | 220 | 140 | 178 | 156 | 62 | 116 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 10 | 35 | 2 | 0 | 0 | 2 | 6 | 161 | 160 | 181 | 160 | 9 | 162 | 6 | 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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