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Radar Reef Surf Forecast
/ WA – Rottnest Island (6 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Radar Reef surfForecast / WA – Rottnest Island / Australia
16 Day Weather and Surf, issued 7 am Wednesday 15 Apr 2026 AWSTForecast update in hr min s Forecast update imminent
Radar Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Radar Reef sea temperature is
22.2° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Radar Reef this week:
The most powerful waves expected at Radar Reef in the next 16 days are 4.0m 13s and forecast to arrive on Tuesday (Apr 21) at 11AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 21st Apr) | 13ft (4.0m) 13s |
Table - best surf conditions forecast for Radar Reef over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 4mm), mostly falling on Wed morning. Warm (max 21°C on Fri night, min 18°C on Wed morning). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the SSW by Thu night). | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Mon night. Warm (max 20°C on Mon night, min 15°C on Sun morning). Winds increasing (light winds from the SW on Mon morning, near gales from the WSW by Mon night). | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
| 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) (?) | 14 | 13 | 16 | 14 | 13 | 13 | 12 | 12 | 7 | 10 | 10 | 10 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 15 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 928 | 722 | 421 | 982 | 808 | 630 | 508 | 256 | 263 | 598 | 690 | 424 | 1318 | 1074 | 812 | 647 | 508 | 497 | 5515 | 3481 | 2825 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | on | on | cross- on |
High Tide / height (m) | 8:54AM 0.70 | 8:52PM 0.70 | 9:00AM 0.78 | 9:59PM 0.66 | 9:19AM 0.87 | 11:18PM 0.62 | 9:44AM 0.97 | 10:14AM 1.06 | 10:47AM 1.12 | 11:23AM 1.14 | |||||||||||
Low Tide / height (m) | 2:44PM 0.49 | 2:37AM 0.49 | 3:41PM 0.43 | 2:37AM 0.54 | 4:43PM 0.41 | 2:25AM 0.59 | 5:56PM 0.41 | 7:28PM 0.43 | 9:23PM 0.43 | 11:19PM 0.42 | |||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
| Sunrise | 6:37 | - | - | 6:39 | - | - | 6:39 | - | - | 6:39 | - | - | 6:41 | - | - | 6:41 | - | - | 6:41 | - | - |
| Sunset | - | 5:57 | - | - | 5:55 | - | - | 5:54 | - | - | 5:53 | - | - | 5:52 | - | - | 5:52 | - | - | 5:51 | - |
 |  |  |  | | | | |  |  | | | | | | | | |  | |  | |
Rain (mm) | 3 | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | 4 | 1 | - | - |
| Temp. °C | 18 | 20 | 20 | 18 | 20 | 20 | 20 | 20 | 21 | 17 | 18 | 18 | 15 | 17 | 17 | 17 | 19 | 20 | 17 | 17 | 17 |
| Feels °C (?) | 14 | 15 | 14 | 16 | 17 | 17 | 18 | 15 | 16 | 12 | 15 | 14 | 12 | 13 | 12 | 16 | 15 | 16 | 8 | 10 | 11 |
- 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 Radar Reef 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 Radar Reef Surf forecast
The above surf forecast table for Radar Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Radar Reef can be found by selecting the local surf guide option on the grey menu. Our Radar Reef 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 (Radar Reef) 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 Radar Reef 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.
Radar Reef is 30 km (19 miles) from the very large city of Fremantle. If you plan a holiday in Rottnest Island, look for hotels and other accommodation in Fremantle. Fremantle has rooms for a wide range of budgets as well as cheap car hire and transport links.
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