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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
48hr Weather and Surf, issued 4 am Saturday 21 Mar 2026 AEDTForecast 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
18.5° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Cat Bay (Shelly Beach) today?
The current surf forecast for Cat Bay (Shelly Beach) at 7AM is: 1.3m 14s primary swell from a Southwest direction and 0.2m 15s secondary swell from a South-southwest direction (forecast issued at 04:00am March 21). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 4.5ft (1.3m) | 14s |
| Afternoon (21 Mar) | 4.5ft (1.4m) | 14s |
| Evening (21 Mar) | 6ft (1.8m) | 14s |
Table - waves today at Cat Bay (Shelly Beach). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 725 | 706 | 696 | 570 | 704 | 1004 | 1273 | 1374 | 1432 | 1290 | 1155 | 1033 | 813 | 778 | 618 | 609 | 488 | 480 | 466 | 386 | 380 | 374 | 380 | 403 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross | cross- on | on | cross- off | off | cross- off | cross- off | glass | glass | glass | glass | off | off | cross- off | cross- off |
High Tide / height (m) | 2:02AM 2.16 | 2:38PM 2.30 | 2:43AM 2.25 | 3:26PM 2.45 | 3:23AM 2.33 | 4:12PM 2.55 | ||||||||||||||||||
Low Tide / height (m) | 8:17AM 0.41 | 8:45PM 0.57 | 9:00AM 0.20 | 9:30PM 0.55 | 9:42AM 0.04 | 10:13PM 0.55 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| Sunrise | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:24 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:30 | - | - | - | - | - | - | - | 7:29 | - | - | - | - | - | - | - | 7:27 | - | - |
 | |  | | | | | | | | | | | | | | | |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 15 | 14 | 17 | 19 | 21 | 21 | 19 | 21 | 19 | 18 | 18 | 18 | 18 | 18 | 20 |
| Feels °C (?) | 14 | 15 | 14 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 13 | 17 | 18 | 19 | 18 | 18 | 20 | 19 | 19 | 18 | 16 | 16 | 15 | 18 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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