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Cat Bay (Shelly Beach) Surf Forecast
/ VIC – Phillip Island (20 breaks) / Victoria (127 breaks) /
Cat Bay (Shelly Beach) surfForecast / VIC – Phillip Island / Australia
12 Day Weather and Surf, issued 9 am Friday 25 Apr 2025 AEST
Best Forecast Surf Conditions for Cat Bay (Shelly Beach) this week:
The surf forecast for Cat Bay (Shelly Beach) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Apr 25) at 4PM. The primary swell is predicted to be 1.6m and 15s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Cat Bay (Shelly Beach) in the next 12 days are 2.1m 15s and forecast to arrive on Saturday (Apr 26) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Apr 30) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Fri 25th Apr) | 5ft (1.6m) 15s |
| Best Surf | 10PM (Sat 26th Apr) | 7ft (2.1m) 15s |
| Most Powerful | 10PM (Sat 26th Apr) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for Cat Bay (Shelly Beach) over the next 12 days.
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | 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) (?) | 16 | 15 | 14 | 14 | 14 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 13 | 14 | 12 | 12 | 11 | 16 | 14 | 13 | 13 | 11 | 11 | 11 | 13 | 13 | 15 | 17 | 16 | 15 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 991 | 1138 | 886 | 1063 | 1355 | 1808 | 1423 | 1014 | 892 | 825 | 786 | 565 | 494 | 338 | 213 | 552 | 630 | 430 | 293 | 198 | 151 | 716 | 755 | 512 | 288 | 142 | 163 | 486 | 601 | 1529 | 4278 | 4056 | 3011 | 2263 | 1688 | 1220 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | glass | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- on | on | on | on | on | on | on | on | cross | glass | on | glass | cross- on |
High Tide / height (m) | 8:47PM 2.04 | 9:28AM 2.01 | 9:49PM 2.05 | 10:47AM 2.17 | 10:49PM 2.09 | 11:56AM 2.36 | 11:46PM 2.16 | 12:55PM 2.53 | 12:40AM 2.25 | 1:49PM 2.64 | 1:32AM 2.32 | 2:39PM 2.68 | 2:22AM 2.36 | 3:26PM 2.65 | 3:11AM 2.35 | 4:12PM 2.57 | 4:00AM 2.29 | 4:57PM 2.45 | 4:49AM 2.19 | 5:41PM 2.32 | 5:40AM 2.06 | 6:25PM 2.19 | ||||||||||||||
Low Tide / height (m) | 2:22PM 0.69 | 3:09AM 0.69 | 3:39PM 0.76 | 4:15AM 0.50 | 4:54PM 0.77 | 5:16AM 0.28 | 6:01PM 0.74 | 6:13AM 0.07 | 6:59PM 0.70 | 7:07AM -0.09 | 7:52PM 0.65 | 7:58AM -0.17 | 8:41PM 0.61 | 8:48AM -0.17 | 9:27PM 0.60 | 9:36AM -0.08 | 10:14PM 0.62 | 10:23AM 0.07 | 11:00PM 0.66 | 11:09AM 0.26 | 11:48PM 0.71 | 11:56AM 0.47 | 12:39AM 0.75 | |||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | |||||||||||||||||||||||||
| Sunrise | 6:54 | - | - | 6:56 | - | - | 6:56 | - | - | 6:58 | - | - | 6:58 | - | - | 6:58 | - | - | 7:00 | - | - | 7:01 | - | - | 7:01 | - | - | 7:03 | - | - | 7:03 | - | - | 7:05 | - | - |
| Sunset | - | 5:38 | - | - | 5:37 | - | - | 5:36 | - | - | 5:35 | - | - | 5:34 | - | - | 5:32 | - | - | 5:31 | - | - | 5:30 | - | - | 5:29 | - | - | 5:28 | - | - | 5:27 | - | - | 5:25 | - |
 |  |  |  | |  | | |  | | | |  | |  | | | | | | | |  | | | |  | | | | | | | | | | |
Rain (mm) | - | 2 | 4 | - | - | - | - | - | - | - | - | - | 3 | 1 | 6 | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 18 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 13 | 14 | 14 | 15 | 15 | 16 | 15 | 17 | 20 | 18 | 19 | 23 | 20 | 21 | 22 | 17 | 18 | 20 | 20 |
| Feels °C (?) | 20 | 16 | 18 | 18 | 15 | 13 | 11 | 12 | 11 | 14 | 13 | 13 | 11 | 8 | 9 | 8 | 8 | 8 | 8 | 10 | 13 | 12 | 15 | 15 | 12 | 15 | 13 | 14 | 19 | 14 | 15 | 18 | 18 | 17 | 19 | 18 |
Short Range Forecast: Light rain (total 6mm), mostly falling on Fri night. Warm (max 23°C on Fri morning, min 15°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Tue night. Very mild (max 16°C on Mon afternoon, min 13°C on Tue night). Winds increasing (light winds from the SSW on Mon morning, fresh winds from the S by Tue afternoon). | Days 6-9 Weather Summary Light rain (total 2mm), mostly falling on Thu night. Warm (max 20°C on Sat afternoon, min 13°C on Thu morning). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 23°C on Sun afternoon, min 16°C on Sun morning). Winds decreasing (fresh winds from the NNW on Sun night, calm by Mon night). | |||||||||||||||||||||||||||||||||
- 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 Cat Bay (Shelly Beach) 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 Cat Bay (Shelly Beach) Surf forecast
The above surf forecast table for Cat Bay (Shelly Beach) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cat Bay (Shelly Beach) can be found by selecting the local surf guide option on the grey menu. Our Cat Bay (Shelly Beach) 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 (Cat Bay (Shelly Beach)) 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 Cat Bay (Shelly Beach) 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.
Cat Bay is 34 km (21 miles) from Mornington. If you plan a holiday in Phillip Island, look for hotels and other accommodation in Mornington. Mornington has rooms for a wide range of budgets as well as car hire and transport links.
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