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Cat Bay (Shelly Beach) Surf Forecast
/ VIC – Phillip Island (20 breaks) / Victoria (127 breaks) /
Surf Forecasts:
Cat Bay (Shelly Beach) surfForecast / VIC – Phillip Island / Australia
16 Day Weather and Surf, issued 9 pm Wednesday 29 Apr 2026 AESTForecast update in hr min s Forecast update imminent
Cat Bay (Shelly Beach) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cat Bay (Shelly Beach) sea temperature is
16.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Cat Bay (Shelly Beach) this week:
The most powerful waves expected at Cat Bay (Shelly Beach) in the next 16 days are 2.5m 12s and forecast to arrive on Thursday (May 07) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Apr 30) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 7th May) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Cat Bay (Shelly Beach) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 17°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sun morning. Warm (max 22°C on Sat night, min 14°C on Mon night). Winds increasing (light winds from the NW on Sun afternoon, strong winds from the NW by Mon night). | ||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | Sunday 3 | Monday 4 | Tuesday 5 | Wed 6 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 11 | SW 9 | WSW 8 | SW 12 | SW 14 | WSW 9 | |
1463 | 947 | 722 | 787 | 726 | 799 | 586 | 444 | 386 | 363 | 368 | 395 | 400 | 382 | 512 | 1134 | 734 | 436 | 778 | 780 | 508 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | cross-on | |
High Tide | 10:41AM1.95m | 10:33PM1.91m | 11:42AM2.05m | 11:25PM1.91m | 12:33PM2.16m | 00:13AM1.94m | 1:17PM2.25m | 00:56AM1.98m | 1:57PM2.31m | 1:37AM2.01m | 2:35PM2.34m | 2:16AM2.03m | 3:12PM2.35m | ||||||||
Low Tide | 4:08AM0.65m | 4:41PM0.96m | 5:03AM0.56m | 5:43PM0.96m | 5:52AM0.47m | 6:36PM0.92m | 6:36AM0.39m | 7:21PM0.87m | 7:17AM0.32m | 8:01PM0.83m | 7:57AM0.28m | 8:39PM0.80m | 8:35AM0.27m | ||||||||
 |  | | | |  | | |  | |  |  |  | | |  | | | | |  | |
 | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — |
 | — | — | 5:32 | — | — | 5:31 | — | — | 5:30 | — | — | 5:29 | — | — | 5:28 | — | — | 5:27 | — | — | 5:25 |
— | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | 1 | — | — | — | — | 4 | |
Temp °C | 20 | 22 | 24 | 23 | 23 | 25 | 23 | 23 | 23 | 22 | 19 | 18 | 17 | 19 | 19 | 16 | 17 | 18 | 17 | 16 | 12 |
15 | 17 | 20 | 19 | 18 | 20 | 19 | 17 | 18 | 16 | 14 | 15 | 16 | 12 | 12 | 9 | 11 | 13 | 12 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 11 | SW 9 | SW 8 | SW 12 | SW 14 | SW 14 |
 kJ | 1463 | 947 | 722 | 787 | 726 | 799 | 586 | 444 | 386 | 363 | 368 | 395 | 400 | 382 | 512 | 1134 | 734 | 349 | 778 | 780 | 257 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 15 | SSW 16 | SSW 14 | SSW 14 | — | — | E 7 | SSW 14 | ESE 4 | W 4 | SE 9 | SE 10 | SE 10 | — | SW 13 | SW 12 | SW 15 | SW 22 | SW 20 |
| kJ | — | — | 21 | 48 | 70 | 40 | — | — | 1 | 19 | 2 | 6 | 3 | 4 | 4 | — | 168 | 272 | 112 | 18 | 62 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 8 | ESE 8 | SE 10 | — | SSW 14 | — | — | — | — | SE 10 | SSW 14 | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 6 | 4 | — | 18 | — | — | — | — | 4 | 111 | — |
Wind waves Height (m) Direction Period (s) | E 4 | NNW 3 | NNW 3 | N 3 | NNW 3 | N 4 | NNE 3 | N 3 | NNW 3 | NE 3 | N 4 | W 4 | NNW 3 | NNW 5 | NNW 5 | WNW 5 | NW 4 | WSW 8 | — | NW 4 | WSW 9 |
| kJ | 6 | 2 | 3 | 5 | 3 | 6 | 4 | 2 | 3 | 4 | 13 | 6 | 10 | 57 | 48 | 42 | 16 | 436 | — | 28 | 508 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 8 | 2 | 2 | 9 | 9 | 2 | 8 | 8 | 9 | 15 | 28 | 2 | 2 | 82 | 23 | 60 | 74 | 2 | 2 | 74 | 68 |
Best forecast wave conditions in Phillip Island | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wind Speed (km/h)
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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 16 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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