Surf Forecasts:
The Cove surf forecast from 12 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 8AM (local time) - 15ft (4.5m), 10s period, E swell with 4,314 kJ wave energy.
Best Forecast Surf Conditions for The Cove this week:
The most powerful waves expected at The Cove in the next 16 days are 4.5m 10s and forecast to arrive on Sunday (Aug 16) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 12s period and expected on Sunday (Aug 16) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for The Cove over the next 16 days.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 33mm), heaviest during Sun morning. Warm (max 28°C on Sat afternoon, min 24°C on Sun morning). Winds decreasing (gales from the ENE on Sun morning, light winds from the E by Mon morning). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | ENE 8 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | S 14 | S 14 | S 13 | E 7 | E 7 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 450 | 1146 | 1734 | 1655 | 3060 | 1397 | 432 | 412 | 329 | 222 | 168 | 138 | 117 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 3:59PM0.80m | 4:08AM0.41m | 4:32PM0.75m | 4:55AM0.46m | 5:02PM0.68m | 5:41AM0.50m | 5:29PM0.60m | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | 8:25AM0.55m | 6:13PM0.37m | ||||||||
Low Tide | 8:53AM0.02m | 10:50PM0.10m | 9:42AM0.06m | 11:15PM0.09m | 10:30AM0.11m | 11:40PM0.09m | 11:19AM0.18m | 00:04AM0.09m | 12:13PM0.25m | 00:28AM0.10m | 1:18PM0.31m | 00:54AM0.11m | 2:59PM0.34m | 1:23AM0.13m | |||||||
 | |  | | | | | | | | |  |  |  |  | | |  | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 19 | 6 | 6 | — | 1 | — | — | — | — |
Temp °C | 27 | 28 | 25 | 28 | 28 | 25 | 27 | 28 | 26 | 27 | 28 | 26 | 25 | 27 | 27 | 28 | 27 | 25 | 26 | 27 | 25 |
Feels °C | 25 | 25 | 24 | 25 | 25 | 23 | 24 | 25 | 24 | 24 | 25 | 23 | 21 | 25 | 26 | 30 | 26 | 24 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | S 13 | E 9 | S 14 | E 8 | S 13 | S 13 | S 13 | S 13 |
| kJ | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 377 | 280 | 219 | 225 | 427 | 163 | 432 | 412 | 201 | 222 | 168 | 119 | 117 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 12 | WNW 12 | W 11 | W 11 | WNW 13 | S 18 | WNW 12 | S 16 | SSE 7 | SSE 6 | S 14 | SSE 6 | SSW 17 | SSW 18 | SSE 9 |
| kJ | 289 | 289 | 28 | 27 | 27 | 25 | 27 | 27 | 21 | 22 | 34 | 99 | 48 | 183 | 114 | 25 | 329 | 6 | 115 | 123 | 30 |
Swell 3 Height (m) Direction Period (s) | WNW 13 | WNW 12 | SSE 9 | SSE 9 | SSE 9 | SW 18 | SSE 11 | SSW 18 | SSW 17 | SSW 17 | S 19 | WNW 13 | SSW 19 | WNW 12 | S 14 | SSW 5 | SSE 6 | WNW 11 | SE 8 | SSE 10 | SW 18 |
| kJ | 55 | 28 | 8 | 8 | 8 | 13 | 13 | 30 | 29 | 29 | 64 | 56 | 37 | 27 | 315 | 17 | 20 | 24 | 18 | 36 | 79 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 6 | E 7 | ENE 7 | E 8 | E 8 | E 8 | ENE 8 | E 10 | E 10 | E 10 | E 10 | E 9 | — | E 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 |
| kJ | 127 | 127 | 120 | 124 | 175 | 319 | 294 | 365 | 450 | 1146 | 1734 | 1655 | 3060 | 1397 | — | 295 | 220 | 134 | 168 | 138 | 106 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 147 | 10 | 10 | 147 | 11 | 25 | 147 | 25 | 180 | 181 | 181 | 189 | 79 | 27 | 10 | 20 | 10 | 10 | 10 | 10 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 The Cove 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 The Cove Surf forecast
The above surf forecast table for The Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Cove can be found by selecting the local surf guide option on the grey menu. Our The Cove 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 (The Cove) 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 The Cove 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.
The Cove is 3 km (2 miles) from 'Ewa Beach. If you plan a vacation in Oahu, look for hotels and other accommodation in 'Ewa Beach. 'Ewa Beach has rooms for a wide range of budgets as well as car hire and transport links.
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