Surf Forecasts:
Keaulanas surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 30 Jul, 8AM (local time) - 2.5ft (0.8m), 14s period, S swell with offshore winds.
- Most powerful swell: Friday 31 Jul, 5AM (local time) - 2.5ft (0.7m), 16s period, SW swell with 264 kJ wave energy.
- Next surfable swell (1★+): Thursday 30 Jul, 8AM (local time) - 2.5ft (0.8m), 14s 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 Thursday (Jul 30) at 8AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.8m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 0.7m 16s and forecast to arrive on Friday (Jul 31) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Monday (Aug 03) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 30th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 8AM (Thu 30th Jul) | 2.5ft (0.8m) 14s |
| Most Powerful | 5AM (Fri 31st Jul) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
The first week of this forecast is a bit of a write-off, to be honest. We’re looking at a long gap from now until the 8th of August where the surf is just too weak or the wind is too strong to get excited about. From Thursday the 30th of July, we start with a few small waves, but the real action doesn’t kick off until the second week.
The only proper standout in this whole 16‑day window is Keaulanas (a beach and reef setup). The best of it is on Monday the 10th of August. We’ll have a solid 4ft swell from the SSW, with a period of 16 seconds – that’s proper groundswell, with plenty of energy and long, clean lines. The wind is a light cross-off breeze from the ENE all day, so the faces will be clean. The combined energy hits 766 (moderate wave energy), and the water temp is sitting at 80°, which is a touch warmer than the long‑term average but nothing crazy. This is an intermediate break, consistent, and it can get busy sometimes, so expect a few others to have the same idea.
The swell is coming from the south‑southwest, which is a good match for the break’s optimum west direction. It’s not a huge swell, so it’s fine for all levels.
Before that, we’ve got a few days of small, weak surf from the 30th of July to the 7th of August. The waves are tiny – 1ft to 3ft – and the wind is often too strong or cross-off. The energy is low, bottoming out at 46 (weak) on the 4th. There’s a brief window on the morning of the 5th of August with glassy conditions and a tiny 1ft wave, but it’s barely surfable. The 8th of August starts to show a pulse with a 2ft west swell, but the wind is moderate offshore, making it clean but small.
After the 10th, the swell drops back gradually. The 11th of August still has a 3ft swell from the SSW, but the wind is a bit stronger, and the energy drops to 515. The 12th and 13th fade into small, weak waves again. The 14th of August has a fresh offshore wind with a 2ft west swell, but it’s riding the edge of marginal.
So, if you’re after the one session to plan for, clear your calendar for the 10th of August. That’s the winner.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 24°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the ENE by Sat morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sun morning, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun morning, light winds from the NE by Tue morning). | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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 13 | SSW 18 | S 13 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 11 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 229 | 222 | 212 | 261 | 236 | 220 | 127 | 123 | 129 | 133 | 85 | 42 | 39 | 55 | 56 | 46 | 42 | 87 | 93 | 88 | 86 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | off | cross-off | off | glassy | glassy | off |
High Tide | 4:45PM0.70m | 4:50AM0.33m | 5:11PM0.66m | 5:36AM0.37m | 5:35PM0.61m | 6:28AM0.40m | 5:58PM0.54m | 7:27AM0.45m | 6:19PM0.47m | 8:36AM0.49m | 6:36PM0.40m | 9:56AM0.55m | |||||||||
Low Tide | 9:30AM0.07m | 11:47PM0.13m | 10:08AM0.10m | 00:07AM0.12m | 10:50AM0.16m | 00:28AM0.11m | 11:40AM0.22m | 00:51AM0.10m | 12:43PM0.28m | 1:18AM0.09m | 2:21PM0.33m | 1:51AM0.08m | 2:36AM0.07m | ||||||||
 |  |  | | |  | | | | | | | | | | |  |  | | | | |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 26 | 27 | 28 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 26 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 31 | 31 | 26 | 25 | 26 | 24 | 22 | 23 | 23 | 24 | 24 | 24 | 27 | 26 | 24 | 29 | 30 | 29 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | S 13 | S 13 | S 12 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 13 | ENE 8 | ENE 8 | SSW 13 | NNE 6 | NNE 5 | ENE 11 | ENE 11 | NE 10 | NE 9 | SSW 15 |
| kJ | 66 | 222 | 212 | 148 | 236 | 220 | 127 | 123 | 129 | 133 | 85 | 78 | 56 | 55 | 25 | 17 | 70 | 68 | 48 | 41 | 86 |
Swell 2 Height (m) Direction Period (s) | S 13 | NE 7 | SW 16 | SW 16 | S 12 | S 12 | S 11 | S 11 | N 10 | N 9 | N 9 | NNE 7 | SSW 13 | SW 12 | SSW 12 | ENE 12 | SSW 11 | SSW 11 | SSW 11 | SSW 15 | NE 9 |
| kJ | 229 | 55 | 211 | 261 | 138 | 71 | 41 | 38 | 17 | 14 | 14 | 45 | 34 | 38 | 56 | 81 | 42 | 47 | 47 | 88 | 37 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SSW 18 | N 9 | N 9 | N 8 | N 8 | N 8 | E 14 | S 11 | S 11 | SE 7 | SW 13 | SW 12 | SE 7 | ENE 8 | SSW 12 | NNE 5 | SSW 15 | SSW 15 | SSE 12 | SSW 10 |
| kJ | 154 | 207 | 40 | 23 | 12 | 11 | 5 | 16 | 21 | 21 | 14 | 42 | 39 | 11 | 23 | 46 | 10 | 87 | 93 | 49 | 33 |
Wind waves Height (m) Direction Period (s) | — | — | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | E 8 | NNE 6 | NE 7 | — | — | — | — | — | — | — |
| kJ | — | — | 26 | 51 | 101 | 162 | 232 | 214 | 250 | 176 | 179 | 358 | 29 | 63 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 5 | 11 | 160 | 162 | 162 | 9 | 11 | 13 | 5 | 0 | 5 | 0 | 5 | 5 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keaulanas 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 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.
Nearest