
Surf Forecasts:
Radz surf forecast from 3 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 8PM (local time) - 7ft (2.2m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 11AM (local time) - 11ft (3.5m), 14s period, SW swell with 4,435 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 8PM (local time) - 7ft (2.2m), 9s period with WSW swell.
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 (Sep 08) at 8PM. The primary swell is predicted to be 2.2m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Radz in the next 16 days are 3.5m 14s and forecast to arrive on Tuesday (Sep 08) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 12s period and expected on Tuesday (Sep 08) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 8th Sep) | 7ft (2.2m) 9s |
| Best Surf | 8PM (Tue 8th Sep) | 7ft (2.2m) 9s |
| Most Powerful | 11AM (Tue 8th Sep) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Radz over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 25°C on Wed afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Sun night. Warm (max 28°C on Tue morning, min 24°C on Sun night). Winds increasing (moderate winds from the ESE on Sun night, strong winds from the SE by Mon night). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | ENE 8 | SW 13 | ENE 8 | ENE 7 | ENE 7 | SW 12 | SW 13 | NNE 11 | NNE 10 | NNE 10 | N 11 | N 10 | N 10 | NW 16 | NNW 14 | NW 13 | SW 15 | SW 14 | SW 10 | W 8 |
Wave Graph | ||||||||||||||||||||
0 | 7 | 0 | 0 | 0 | 6 | 6 | 12 | 20 | 18 | 9 | 8 | 8 | 10 | 20 | 44 | 2425 | 4435 | 1312 | 203 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore 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 | off | cross-off | cross-off | cross-off |
High Tide | 2:52PM0.48m | 9:00AM0.61m | 10:44AM0.66m | 11:43AM0.72m | 12:26PM0.76m | 11:16PM0.31m | 1:01PM0.77m | 00:22AM0.37m | 1:32PM0.77m | 1:11AM0.44m | ||||||||||
Low Tide | 11:37PM0.11m | 00:34AM0.12m | 2:10AM0.13m | 3:55AM0.12m | 8:18PM0.28m | 5:11AM0.10m | 8:11PM0.26m | 6:09AM0.10m | 8:20PM0.24m | |||||||||||
— | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | |
mm | — | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | 7 | 3 | 1 | 7 | 1 | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 25 | 26 | 27 | 28 | 29 | 27 |
Feels °C | 25 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 24 | 25 | 23 | 26 | 25 | 25 | 25 | 25 | 23 | 26 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 13 | E 13 | E 12 | E 14 | E 14 | E 14 | E 14 | S 12 | S 12 | S 12 | SSW 12 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SW 15 | SW 14 | E 10 | W 8 |
66 | 123 | 121 | 107 | 260 | 357 | 569 | 668 | 47 | 44 | 73 | 117 | 269 | 379 | 493 | 742 | 2425 | 4435 | 725 | 203 | |
Swell 2 Height (m) Direction Period (s) | S 16 | S 15 | SSE 13 | SE 13 | SSE 12 | SSE 12 | SSE 11 | S 13 | NNE 10 | NNE 10 | SSW 16 | SW 16 | N 10 | NW 16 | NNW 14 | NW 13 | NNW 12 | ENE 11 | E 14 | ENE 9 |
45 | 39 | 17 | 44 | 28 | 28 | 24 | 29 | 20 | 18 | 50 | 66 | 8 | 10 | 20 | 44 | 56 | 1008 | 181 | 275 | |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SW 13 | S 15 | SSW 14 | S 14 | SW 12 | SW 13 | NNE 11 | SSW 17 | SSW 17 | N 11 | N 10 | S 10 | SSW 18 | N 11 | SSW 17 | NNW 12 | E 14 | SSW 14 | SSW 9 |
17 | 7 | 17 | 20 | 15 | 6 | 6 | 12 | 29 | 29 | 9 | 8 | 2 | 67 | 2 | 92 | 56 | 142 | 70 | 127 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 13 | ENE 13 | E 12 | SSE 7 | SW 10 | S 9 |
547 | 556 | 540 | 415 | 404 | 417 | 417 | 417 | 2129 | 1956 | 1804 | 1671 | 1316 | 1437 | 1808 | 1846 | 2768 | 449 | 1312 | 157 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 32 | 32 | 171 | 164 | 32 | 32 | 163 | 154 | 30 | 34 | 30 | 30 | 30 | 16 | 30 | 32 | 160 | 187 | 164 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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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.










