Surf Forecasts:
Keaulanas surf forecast from 14 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11PM (local time) - 4ft (1.2m), 15s period, S swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 11PM (local time) - 4ft (1.2m), 15s period, S swell with 636 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11PM (local time) - 4ft (1.2m), 15s 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 (Aug 13) at 11PM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 0.2m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Keaulanas in the next 16 days are 1.2m 15s and forecast to arrive on Thursday (Aug 13) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Sunday (Aug 16) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 13th Aug) | 4ft (1.2m) 15s |
| Best Surf | 11PM (Thu 13th Aug) | 4ft (1.2m) 15s |
| Most Powerful | 11PM (Thu 13th Aug) | 4ft (1.2m) 15s |
Table - best surf conditions forecast for Keaulanas over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun morning. Warm (max 29°C on Fri afternoon, min 25°C on Thu night). Mainly near gales. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 28°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 17 | S 16 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | SW 16 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||
636 | 503 | 496 | 311 | 222 | 168 | 176 | 197 | 183 | 243 | 338 | 329 | 222 | 165 | 162 | 155 | 129 | 100 | 175 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 4:57AM0.42m | 5:03PM0.63m | 5:45AM0.46m | 5:29PM0.55m | 6:36AM0.49m | 5:51PM0.47m | 7:32AM0.51m | 6:05PM0.40m | 8:37AM0.52m | 5:51PM0.34m | 9:54AM0.53m | ||||||||
Low Tide | 11:20PM0.09m | 10:27AM0.12m | 11:44PM0.09m | 11:19AM0.18m | 00:07AM0.09m | 12:16PM0.25m | 00:30AM0.09m | 1:28PM0.30m | 00:54AM0.10m | 3:34PM0.33m | 1:22AM0.12m | 2:02AM0.13m | |||||||
— | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | |
7:04 | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | — | 3 | 3 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 29 | 26 | 27 | 28 | 26 | 26 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 27 | 27 | 26 |
Feels °C | 25 | 25 | 27 | 25 | 24 | 24 | 23 | 21 | 29 | 27 | 29 | 29 | 26 | 27 | 28 | 26 | 29 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | SE 8 | NE 8 | NE 7 | NE 7 | S 13 | S 13 | S 13 | S 13 | NNE 7 | NE 7 | NE 7 |
636 | 503 | 496 | 311 | 222 | 168 | 176 | 119 | 166 | 164 | 102 | 79 | 222 | 165 | 162 | 155 | 33 | 47 | 38 | |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | NNW 8 | ESE 10 | W 11 | W 13 | S 18 | S 17 | S 13 | SSE 7 | S 14 | S 14 | S 5 | SSW 17 | SSW 18 | NE 6 | SW 16 | S 12 | SSW 16 |
21 | 13 | 6 | 63 | 22 | 30 | 99 | 197 | 160 | 125 | 338 | 329 | 14 | 115 | 123 | 26 | 129 | 44 | 175 | |
Swell 3 Height (m) Direction Period (s) | W 11 | W 12 | SSW 18 | NNW 8 | NNW 7 | NNW 8 | WNW 13 | WNW 12 | S 16 | S 14 | SSE 6 | S 6 | WNW 11 | S 5 | WNW 13 | SW 18 | S 12 | SSW 16 | S 12 |
10 | 11 | 30 | 12 | 5 | 12 | 33 | 28 | 183 | 243 | 55 | 36 | 24 | 8 | 34 | 79 | 69 | 100 | 44 | |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 6 | ENE 8 | ENE 8 | ENE 8 | — | — | — | NE 7 | NE 6 | NE 6 | — | — | — | — |
66 | 94 | 113 | 159 | 284 | 329 | 661 | 740 | 307 | — | — | — | 63 | 46 | 42 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 0 | 11 | 161 | 167 | 167 | 167 | 167 | 163 | 24 | 0 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











