- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Radz surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 7 am Tuesday 05 May 2026 HSTForecast update in hr min s Forecast update imminent
Radz surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Radz sea temperature is
24.7° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Radz this week:
The surf forecast for Radz over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 05) at 2PM. The primary swell is predicted to be 1.2m and 11s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Radz in the next 16 days are 2.2m 13s and forecast to arrive on Thursday (May 07) at 8PM. 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 6s period and expected on Monday (May 11) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Tue 5th May) | 4ft (1.2m) 11s |
| Best Surf | 8AM (Thu 7th May) | 4ft (1.2m) 16s |
| Most Powerful | 8PM (Thu 7th May) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Radz over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 24°C on Tue morning, min 22°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sat afternoon. Warm (max 24°C on Fri morning, min 23°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 5 | Wednesday 6 | Thursday 7 | Friday 8 | Saturday 9 | Sunday 10 | Monday 11 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 17 | NNW 15 | NNW 12 | NW 13 | NW 12 | NW 12 | NW 11 | NNW 11 | NW 11 | NW 11 | NW 12 | NNW 12 | NNW 12 | NW 11 | NNW 11 | NNW 11 | |
425 | 303 | 297 | 196 | 163 | 338 | 1671 | 787 | 1325 | 864 | 694 | 471 | 359 | 191 | 134 | 341 | 583 | 603 | 273 | 311 | 234 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | glassy | on | cross-on | cross | 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 | 5:53PM0.68m | 6:48PM0.66m | 7:47PM0.64m | 8:41PM0.63m | 9:40AM0.26m | 9:27PM0.62m | 11:25AM0.34m | 10:05PM0.61m | 12:02PM0.44m | 10:40PM0.58m | |||||||||||
Low Tide | 9:17AM0.08m | 9:44AM0.11m | 10:13AM0.15m | 10:44AM0.20m | 6:43AM0.26m | 5:40AM0.24m | 2:30PM0.32m | 5:36AM0.20m | 4:30PM0.36m | ||||||||||||
 |  |  | |  | | | |  | | | | |  |  | | | | | | | |
 | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 6:59 | — | — | 6:59 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
— | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 23 | 24 | 23 | 23 | 24 | 23 |
25 | 26 | 27 | 25 | 24 | 24 | 24 | 22 | 23 | 25 | 24 | 23 | 25 | 24 | 23 | 22 | 23 | 21 | 21 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NNW 15 | NNW 12 | NW 13 | NW 12 | NW 12 | NW 11 | NNW 11 | N 7 | N 7 | NW 12 | NNW 12 | NNW 12 | NW 11 | NNW 11 | NNW 11 |
 kJ | 425 | 303 | 297 | 196 | 163 | 161 | 1671 | 763 | 1325 | 864 | 694 | 471 | 359 | 71 | 104 | 341 | 583 | 603 | 273 | 311 | 234 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 8 | E 8 | NW 17 | E 8 | NW 14 | NE 10 | E 8 | E 8 | E 8 | E 8 | NW 11 | NW 11 | NNE 7 | NW 13 | ESE 8 | S 17 | SW 17 | SW 18 |
| kJ | 113 | 110 | 61 | 61 | 46 | 338 | 47 | 787 | 4 | 66 | 49 | 49 | 46 | 191 | 134 | 62 | 88 | 24 | 6 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | SSW 18 | SSW 16 | N 6 | NE 8 | E 8 | SSW 15 | E 8 | SSW 15 | NE 9 | NNE 9 | N 10 | SSW 15 | NW 14 | E 8 | NW 12 | ESE 8 | S 11 | S 12 | S 12 | S 17 |
| kJ | 25 | 30 | 26 | 7 | 17 | 50 | 21 | 50 | 21 | 13 | 8 | 17 | 21 | 32 | 32 | 67 | 21 | 2 | 3 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | E 7 | — | — | — | — | NE 3 | ENE 4 | NE 4 | E 8 | — | — | ESE 8 | — | E 8 | ESE 5 | E 5 | E 5 | E 6 | NE 6 | ENE 6 | ENE 6 |
| kJ | 173 | — | — | — | — | 1 | 3 | 13 | 108 | — | — | 90 | — | 46 | 7 | 44 | 37 | 72 | 201 | 176 | 155 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 10 | 10 | 8 | 0 | 8 | 33 | 6 | 0 | 33 | 0 | 0 | 10 | 8 | 33 | 33 | 30 | 30 | 33 | 8 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 16 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.
Nearest