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Radz surfForecast / HAW – Oahu / USA
12 Day Weather and Surf, issued 7 pm Wednesday 17 Sep 2025 HST
Best Forecast Surf Conditions for Radz this week:
The most powerful waves expected at Radz in the next 12 days are 1.7m 7s and forecast to arrive on Saturday (Sep 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Saturday (Sep 20) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 20th Sep) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Radz over the next 12 days.
Short Range Forecast Light rain (total 3mm), mostly falling on Thu night. Warm (max 26°C on Thu morning, min 25°C on Wed night). Mainly fresh winds. | Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sun morning. Warm (max 26°C on Sun afternoon, min 24°C on Tue morning). Mainly fresh winds. | |||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 11 | 11 | 10 | 7 | 13 | 13 | 12 | 11 | 10 | 10 | 12 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 61 | 54 | 55 | 56 | 108 | 73 | 171 | 41 | 58 | 67 | 58 | 39 | 35 | 66 | 58 | 53 | 47 | 23 | 21 | 22 | 22 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | |
High Tide / height (m) | 12:28AM 0.38 | 1:17PM 0.72 | 1:08AM 0.44 | 1:41PM 0.70 | 1:44AM 0.50 | 2:01PM 0.66 | 2:19AM 0.55 | 2:19PM 0.62 | 2:53AM 0.59 | 2:33PM 0.57 | 3:27AM 0.62 | 2:44PM 0.53 | 4:02AM 0.63 | 2:50PM 0.48 | ||||||||
Low Tide / height (m) | 6:03AM 0.15 | 8:04PM 0.23 | 6:49AM 0.15 | 8:13PM 0.21 | 7:30AM 0.17 | 8:25PM 0.19 | 8:08AM 0.21 | 8:38PM 0.17 | 8:46AM 0.25 | 8:52PM 0.14 | 9:25AM 0.29 | 9:06PM 0.13 | 10:04AM 0.34 | |||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | ||||||||||||||||
| Sunrise | - | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | - | 6:20 | - | |
| Sunset | - | - | 6:31 | - | - | 6:30 | - | - | 6:30 | - | - | 6:29 | - | - | 6:28 | - | - | 6:27 | - | - | 6:25 | |
 |  | |  | |  | | | | | | | | | | | | | | | | ||
Rain (mm) | - | - | - | 1 | - | 1 | 1 | - | - | - | 2 | - | - | - | - | - | 2 | 1 | - | - | - | |
| Temp. °C | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | |
| Feels °C (?) | 23 | 25 | 25 | 24 | 26 | 26 | 24 | 25 | 25 | 24 | 24 | 26 | 24 | 25 | 26 | 25 | 25 | 23 | 24 | 23 | 25 | |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Continuing clean conditions at Radz (light winds from the ESE at Wheeler Air Force Base/oahu Airport 26 km from Radz). 0.6m 8s swell from the N to make surfable waves.
26 km away, 1 h 48 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 Radz 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 Radz Surf forecast
The above surf forecast table for Radz provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Radz can be found by selecting the local surf guide option on the grey menu. Our Radz 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 (Radz) 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 Radz 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.
Radz 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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