
Surf Forecasts:
Keaulanas surf forecast from 14 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 8PM (local time) - 3ft (0.9m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 2PM (local time) - 2.5ft (0.8m), 16s period, S swell with 329 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 2PM (local time) - 2.5ft (0.8m), 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 14) at 2PM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.8m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 0.8m 16s and forecast to arrive on Monday (Jul 20) at 2PM. 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 7s period and expected on Monday (Jul 20) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Tue 14th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 8PM (Tue 14th Jul) | 3ft (0.9m) 13s |
| Most Powerful | 2PM (Mon 20th Jul) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
The Lowdown
Right then, let’s see what we’ve got for the next couple of weeks. The only break worth talking about is Keaulanas, a beach and reef setup that’s consistently offering something. The water temp is sitting at 80°, which is pretty much spot on for this time of year, so no surprises there.
We kick off on Tuesday, the 14th, with a clean little pulse. Morning sees a 3 ft SSW swell with a 14-second period, offering a combined energy of 426 (moderate), and a light cross-off breeze from the ENE. That’s a good start. The afternoon improves with a 2 ft W swell stretching to a 16-second period, combined energy at 489 (moderate), and clean offshore wind. This is a proper window for an intermediate surfer.
Wednesday the 15th drops off a bit. Swell holds around 3 ft with a 15-second period, but the wind goes cross-shore both morning and afternoon, and there’s light rain later. The energy is still moderate (453 and 392), but the conditions are just marginal. Not a write-off, but not a standout.
Thursday the 16th is a mixed bag. The morning looks clean again with a 2 ft W swell, 14-second period, and cross-off wind, giving a combined energy of 316 (moderate). The afternoon sees the wind pick up to 12 mph and the energy bumps to 352, but it’s still only marginal. Friday the 17th and Saturday the 18th are similar – small swell around 2 ft to 2 ft, but the wind is getting stronger, up to 16 mph, making it less appealing. The combined energy drops to 238 and 228 on those mornings, which is still moderate but feeling weaker.
Sunday the 19th is the low point. Swell drops to 2 ft and 1 ft, with combined energy falling to 117 and 228 (weak to moderate). The wind is still strong and cross-off, so it’s a poor session. Monday the 20th brings a slight lift, with a 2 ft to 3 ft S swell, 16-second period, and gentle offshore wind in the morning. The energy climbs back to 395 and 406 (moderate), and conditions are good again. This is a solid option.
Now, the real highlight comes on Wednesday the 22nd. The afternoon session delivers a 2 ft SW swell with a monster 24-second period, and the combined energy rockets to 676 (strong). That’s a very long period groundswell, which will be clean and powerful with a moderate offshore breeze. This is the best on offer – a true standout for experienced surfers who know how to handle those long, lully sets. The point break nature of the reef there will really shine.
Thursday the 23rd and Friday the 24th keep the quality high. Both days see 2 ft to 2 ft SSW swell, with periods of 20 and 21 seconds, and combined energy between 525 and 645 (still strong). Offshore winds are light to moderate, keeping it clean. These are top-tier days for the intermediate to expert crowd.
The second week from Saturday the 25th onward sees a gradual decline. The swell holds around 2 ft to 3 ft with periods dropping to 16 seconds, and the energy slips to 493 and below. The wind stays offshore but the quality drops. Sunday the 26th and Monday the 27th are still surfable, with 2 ft to 2 ft swell and combined energy between 315 and 181, but it’s ordinary. By Tuesday the 28th, the energy drops to 84 and 78 – that’s weak, and the swell is only 2 ft with a 12-13 second period. The last two days, Wednesday the 29th and Thursday the 30th, are glassy but weak, with energy at 101 and 75. Surfable, but nothing to get excited about.
So, the standout is crystal clear: Wednesday the 22nd afternoon through Friday the 24th. That’s where the magic is. The rest of the window has some clean windows, especially the 14th and 20th, but the long-period groundswell mid-week is the one to circle.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 27°C on Tue afternoon, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 14 | SSW 14 | W 15 | W 15 | W 15 | SSW 16 | W 14 | W 14 | SSW 14 | W 14 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | SSW 12 | SSW 13 | S 19 | S 18 | S 16 | S 16 | S 15 |
Wave Graph | |||||||||||||||||||||
236 | 257 | 229 | 291 | 283 | 314 | 203 | 203 | 200 | 144 | 196 | 145 | 141 | 210 | 121 | 92 | 110 | 154 | 193 | 325 | 163 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 4:27PM0.83m | 4:16AM0.26m | 5:06PM0.79m | 5:13AM0.30m | 5:42PM0.73m | 6:12AM0.34m | 6:15PM0.65m | 7:16AM0.38m | 6:44PM0.56m | 8:28AM0.42m | 7:08PM0.48m | 9:44AM0.47m | 7:23PM0.40m | ||||||||
Low Tide | 8:47AM-0.02m | 11:49PM0.11m | 9:36AM0.01m | 00:21AM0.10m | 10:26AM0.06m | 00:52AM0.10m | 11:17AM0.14m | 1:21AM0.10m | 12:14PM0.22m | 1:50AM0.10m | 1:25PM0.30m | 2:19AM0.10m | 3:17PM0.35m | 2:50AM0.11m | |||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | |
— | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 27 | 28 | 25 | 27 | 28 | 25 | 26 | 27 | 25 | 25 | 27 | 25 |
Feels °C | 27 | 27 | 25 | 28 | 28 | 27 | 27 | 28 | 24 | 26 | 27 | 24 | 26 | 26 | 24 | 25 | 25 | 24 | 26 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | W 15 | NNE 7 | SSW 16 | W 14 | NE 7 | NE 7 | NE 7 | SSW 16 | SSW 14 | NE 7 | SSW 14 | SSW 12 | SSW 13 | S 13 | SSW 12 | S 13 | S 16 | NE 7 |
96 | 114 | 86 | 291 | 70 | 314 | 203 | 59 | 55 | 57 | 196 | 145 | 65 | 210 | 121 | 92 | 89 | 75 | 119 | 325 | 44 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | W 15 | NNE 7 | W 15 | NNE 8 | NE 7 | W 14 | SSW 14 | W 14 | W 14 | W 13 | SSW 13 | WNW 13 | WNW 12 | SE 8 | S 19 | S 18 | S 16 | SW 18 | S 15 |
236 | 232 | 229 | 68 | 283 | 74 | 54 | 203 | 180 | 144 | 140 | 90 | 141 | 57 | 51 | 16 | 110 | 154 | 193 | 81 | 163 | |
Swell 3 Height (m) Direction Period (s) | W 16 | W 16 | SW 13 | SW 13 | SSW 13 | W 15 | SSW 13 | SSW 13 | W 14 | SSW 12 | SSW 12 | SW 15 | W 13 | SE 9 | SE 9 | W 12 | WNW 12 | SW 19 | SW 18 | SSE 5 | S 13 |
190 | 257 | 170 | 162 | 106 | 275 | 113 | 149 | 200 | 94 | 55 | 58 | 87 | 20 | 20 | 25 | 29 | 92 | 83 | 3 | 86 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 5 | — | — | — | ENE 6 | E 6 | NE 7 | NE 7 | E 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 7 | NE 7 | ENE 7 |
— | — | — | — | 3 | — | — | — | 51 | 62 | 57 | 67 | 107 | 63 | 89 | 75 | 86 | 53 | 48 | 73 | 99 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 2 | 2 | 5 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 2 | 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.










