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Keaau Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Keaau surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 1 am Saturday 30 Aug 2025 HST
Best Forecast Surf Conditions for Keaau this week:
The surf forecast for Keaau over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 31) at 5PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Keaau in the next 12 days are 1.1m 11s and forecast to arrive on Monday (Sep 01) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Friday (Sep 05) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 31st Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 8PM (Mon 1st Sep) | 3.5ft (1.0m) 11s |
| Most Powerful | 11PM (Mon 1st Sep) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for Keaau over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 27°C on Sat morning, min 24°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Thu morning, min 24°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | Wednesday 03 | Thursday 04 | Friday 05 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 10 | 14 | 9 | 9 | 8 | 8 | 12 | 11 | 10 | 10 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 11 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 14 | 0 | 20 | 44 | 61 | 63 | 93 | 168 | 374 | 390 | 361 | 338 | 240 | 215 | 179 | 111 | 113 | 115 | 102 | 140 | 151 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross | cross- off | on | glass | glass | on | glass | off | on | cross- on | cross- off | cross- on | on | glass | glass | cross- off | off | glass | cross- off | off |
High Tide / height (m) | 10:24AM 0.50 | 11:39AM 0.53 | 10:54PM 0.18 | 12:38PM 0.57 | 12:35AM 0.19 | 1:25PM 0.61 | 1:26AM 0.22 | 2:03PM 0.65 | 2:07AM 0.25 | 2:38PM 0.67 | 2:45AM 0.30 | 3:11PM 0.67 | 3:24AM 0.36 | ||||||||
Low Tide / height (m) | 2:45AM 0.14 | 8:39PM 4:04AM 0.20 0.14 | 8:46PM 0.17 | 5:24AM 0.13 | 9:01PM 0.15 | 6:27AM 0.10 | 9:18PM 0.13 | 7:20AM 0.07 | 9:37PM 0.10 | 8:09AM 0.05 | 9:58PM 0.08 | ||||||||||
Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | Wednesday 03 | Thursday 04 | Friday 05 | |||||||||||||||
| Sunrise | 6:15 | - | - | 6:15 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - |
| Sunset | - | 6:51 | - | - | 6:50 | - | - | 6:49 | - | - | 6:47 | - | - | 6:46 | - | - | 6:45 | - | - | 6:45 | - |
 |  |  | | | | | | |  | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 27 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 26 | 25 | 27 | 27 | 26 | 28 | 27 | 26 | 28 | 28 | 26 |
| Feels °C (?) | 27 | 27 | 28 | 27 | 26 | 29 | 29 | 28 | 28 | 25 | 26 | 28 | 28 | 25 | 27 | 29 | 26 | 26 | 29 | 29 | 26 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Continuing clean conditions at Keaau (light winds from the NE at Kalaeloa Airport 26 km from Keaau). No surfable waves
26 km away, 1 h 47 min ago
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 Keaau 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 Keaau Surf forecast
The above surf forecast table for Keaau provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Keaau can be found by selecting the local surf guide option on the grey menu. Our Keaau 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 (Keaau) 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 Keaau 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.
Keaau is 22 km (14 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.
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