
Surf Forecasts:
Keaulanas surf forecast from 2 Aug 2026:
- Best quality surf: Sunday 9 Aug, 8AM (local time) - 2.5ft (0.7m), 17s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 5AM (local time) - 2.5ft (0.7m), 17s period, SSW swell with 264 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 8AM (local time) - 2ft (0.6m), 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 Sunday (Aug 02) at 8AM. The primary swell is predicted to be 0.6m 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 0.7m 17s and forecast to arrive on Sunday (Aug 09) 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 7s period and expected on Sunday (Aug 09) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 2nd Aug) | 2ft (0.6m) 14s |
| Best Surf | 8AM (Sun 9th Aug) | 2.5ft (0.7m) 17s |
| Most Powerful | 5AM (Sun 9th Aug) | 2.5ft (0.7m) 17s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's cookin' in the water for the next couple of weeks.
We've got a long patch of flat, weak surf for the first week, with a few clean windows but nothing worth paddling out for. The real action is a late-arriving bump of energy that builds in the second week, but it's a bit of a mixed bag.
First up, Keaulanas. The water is a warm 81°, which is dead average for this time of year. Right now, we've got a few days of "blah." Sunday morning, August 2nd, you've got a tiny 2ft swell from the SSW, but it's wrecked by a fresh 19 mph cross-off wind. The wave energy is weak at 148, and it's just poor surf. Sunday afternoon goes offshore, but the swell is so tiny it's not worth a look.
Monday and Tuesday, August 3rd and 4th, are the same story. Knee-high dribble, 1ft to 2ft. The good news is Tuesday morning is glassy, dead calm. The swell is still tiny, but for a longboard, it might be the only game in town. The wave energy is a pathetic 46 to 75. It's surfable, but very ordinary.
Wednesday, August 5th, sees a spike in period with a 16-second groundswell, but the height is still only 1ft. The energy bumps up to 132, which is still weak. Glassy conditions will make it look pretty, but you'll be waiting a long time between sets.
Thursday the 6th is more of the same – glassy, tiny, but the energy drops back down.
Now, here's where it gets interesting. From Friday, August 7th, through to the middle of the next week, we see a steady increase in the combined energy of all swells. The numbers climb from 191 up to a massive 1150 by Wednesday, August 12th. But the catch is the wind. It's a relentless cross-off from the ENE, 12 to 19 mph. The swell height starts to tick up, hitting 4ft to 4ft by the 12th, coming from the S. The period is dropping from a very long 21 seconds down to 17 seconds, which is still long period groundswell. This long period stuff is better for a point or reef, but Keaulanas is a beach and reef setup. The wind is going to chop it up, and the reports are calling it marginal. Not ideal for a paddle board.
The standout for this whole period, and the only time I'd really get excited, is Monday, August 10th. The forecast is for "expect good surf conditions" with a score of 2 out of 10. The swell is still a modest 2ft from the SSW, but it's got a solid 16-second period, and the energy is moderate at 303. The wind is a gentle 9 mph offshore in the morning, picking up to a moderate 12 mph in the afternoon. This is the cleanest, most rideable window we're going to get. It's not a big day, but the conditions will be right. Since it's a consistent spot, it's worth a look, though keep in mind it can get crowded sometimes.
After that, the swell continues to build through the 12th, 13th, and 14th, hitting 4ft, but the wind stays cross-off, and the conditions are repeatedly called marginal. The wave energy is strong, hitting 1150 on the 12th, but it's not aligned with the best conditions. This setup is starting to look more interesting for the kite surfers than us paddle guys, because the wind is clean but the waves are just fat and lumpy.
The energy finally starts to fade on the 16th and 17th, dropping back to 2ft from the W, with the wind still howling. The run ends pretty much flat and blown out.
So, to sum it up: the first week is a bust. The second week has a building swell, but it's mostly a wind-affected mess. The best bet is that Monday, August 10th, with the clean offshore winds and a bit of long-period groundswell. It's the only half-decent option in the whole 16 days.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 24°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun afternoon, calm by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 15 | SSW 16 | SSW 15 | SW 15 | SSW 14 | SSW 14 | SW 14 | SW 21 | SW 20 | SSW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
133 | 116 | 42 | 42 | 50 | 56 | 46 | 75 | 87 | 94 | 88 | 107 | 81 | 80 | 102 | 115 | 99 | 148 | 162 | 154 | 150 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | glassy | glassy | off | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:58PM0.54m | 7:27AM0.45m | 6:19PM0.47m | 8:36AM0.49m | 6:36PM0.40m | 9:56AM0.55m | 11:13AM0.61m | 12:19PM0.67m | 10:17PM0.21m | 1:14PM0.73m | 00:29AM0.20m | ||||||||||
Low Tide | 11:40AM0.22m | 00:51AM0.10m | 12:43PM0.28m | 1:18AM0.09m | 2:21PM0.33m | 1:51AM0.08m | 2:36AM0.07m | 3:37AM0.07m | 9:32PM0.21m | 9:20PM0.17m | |||||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | |
— | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 28 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 25 |
Feels °C | 25 | 24 | 24 | 28 | 28 | 25 | 29 | 29 | 29 | 29 | 31 | 29 | 30 | 29 | 27 | 27 | 27 | 26 | 26 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SW 13 | ENE 8 | SSW 12 | SSW 12 | NNE 5 | NNE 5 | NE 11 | NE 10 | SSW 15 | SW 15 | NE 8 | SSW 14 | SW 14 | SSW 14 | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
133 | 116 | 42 | 38 | 50 | 56 | 17 | 15 | 94 | 79 | 88 | 107 | 33 | 80 | 102 | 76 | 91 | 108 | 113 | 102 | 99 | |
Swell 2 Height (m) Direction Period (s) | SE 5 | N 9 | SSW 13 | NE 7 | SW 13 | ENE 8 | ENE 11 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSE 12 | SSW 14 | NNW 8 | S 11 | SSE 10 | SSE 11 | SSW 19 | SW 18 | SW 18 | SW 18 |
7 | 13 | 34 | 15 | 41 | 26 | 42 | 75 | 69 | 38 | 37 | 49 | 81 | 11 | 38 | 37 | 37 | 148 | 162 | 154 | 150 | |
Swell 3 Height (m) Direction Period (s) | N 9 | W 12 | SE 6 | SW 13 | SE 7 | SSE 9 | SSW 12 | ENE 11 | SSW 15 | SSW 16 | ENE 10 | NE 4 | NNW 8 | S 11 | NNW 7 | SW 21 | SW 20 | S 11 | SE 8 | SSE 9 | SE 7 |
15 | 25 | 5 | 42 | 7 | 17 | 46 | 46 | 87 | 94 | 35 | 5 | 13 | 22 | 10 | 115 | 99 | 20 | 11 | 33 | 14 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NNE 6 | NE 6 | NNE 5 | — | — | — | — | NNE 4 | — | — | ENE 8 | NE 8 | NE 7 | NE 5 | ENE 7 | ENE 7 | ENE 7 | NE 6 |
169 | 174 | 118 | 25 | 54 | 23 | — | — | — | — | 6 | — | — | 44 | 28 | 27 | 21 | 70 | 73 | 78 | 54 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 162 | 13 | 0 | 30 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 5 | 6 | 5 |
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.











