
Surf Forecasts:
Cathedral Rock surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1AM (local time) - 15ft (4.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 1AM (local time) - 15ft (4.5m), 16s period, SW swell with 10,010 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 4AM (local time) - 6ft (1.9m), 16s period with SW swell.
Best Forecast Surf Conditions for Cathedral Rock this week:
The surf forecast for Cathedral Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 4AM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.7m and 6s. Another secondary swell of 1.4m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cathedral Rock in the next 16 days are 4.5m 16s and forecast to arrive on Thursday (Aug 13) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 12) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 11th Aug) | 6ft (1.9m) 16s |
| Best Surf | 1AM (Thu 13th Aug) | 15ft (4.5m) 16s |
| Most Powerful | 1AM (Thu 13th Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Cathedral Rock over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s comin’ our way.
This stretch is all about one spot: Cathedral Rock. And honestly, it’s a bit of a slow burner, but when it fires, it fires big. The first few days are a write-off, but once we get past that, there’s some serious power on the way.
The opening act on Monday, the 10th, is a no-go. Strong cross-on wind and messy surf, so don’t even bother paddling out. That’s the price of waiting for the good stuff.
The real run kicks off on Tuesday, the 11th, with a morning window worth getting up for. The wind goes clean, light cross-off, and the swell is solid 7 ft from the SSW with a period of 14 seconds. The water temp is about 57°, which is normal for this time of year. This is top-notch for experienced surfers – the long period means the lines will have plenty of punch.
Tuesday afternoon dips a little, but Wednesday, the 12th, is where you clear your calendar. The morning has a 10 ft SSW groundswell, 16-second period, but the wind is a bit cross. The afternoon cleans up nicely with a light cross-off breeze. That is the standout of the week. The size is up there, so this is one for the experienced crew.
Thursday, the 13th, stays big. The morning is 12 ft and clean with cross-off wind, but Thursday afternoon is the real monster: 15 ft of SSW swell, 16-second period. That’s a lot of ocean moving. The wind is light, so it’ll be lined up, but at that size, it’s expert-only territory.
Friday, the 14th, keeps the swell in the 12 ft to 13 ft range, but the wind turns more onshore and cross-on, so the quality drops.
Saturday, the 15th, and Sunday, the 16th, see the swell backing off to 7 ft to 8 ft, but the wind is mostly onshore, making it tricky.
The second week starts to clean up. Monday, the 17th, is a glassy morning with 6 ft from the SSW. That’s a beautiful window for a surf. Tuesday, the 18th, is even better with 5 ft to 6 ft, clean, and light offshore wind from the north. These are the days to lock in if you missed the big stuff.
The end of the run fades out. From Wednesday, the 19th, through Friday, the 21st, the swell drops to 3 ft to 4 ft, but it stays clean. Fun little waves, but not the big show.
Then there’s a real gap. Saturday, the 22nd, is almost flat with a tiny 1 ft to 2 ft swell and a weird 24-second period. The wind is strong cross-off, so it’s not worth the paddle.
A new pulse arrives Sunday, the 23rd, with 5 ft clean waves, and then Monday, the 24th, and Tuesday, the 25th, bring back the proper size. 6 ft to 8 ft with clean offshore flow. That’s a promising way to finish the run.
If you’re chasing the best of the best, it’s Wednesday afternoon, the 12th, and Thursday afternoon, the 13th, for the big, powerful groundswell. For the cleanest, most manageable waves, lock in Tuesday, the 18th. Crowds are possible at Cathedral Rock, so keep an eye out.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 13°C on Mon afternoon, min 8°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 10°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | SW 17 | SW 16 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
2657 | 1783 | 1580 | 1344 | 2193 | 5205 | 5402 | 10010 | 6119 | 9049 | 5523 | 8931 | 6285 | 4301 | 3268 | 2863 | 2350 | 2185 | 1929 | 1580 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-on | on | on | cross-on | on | cross | on |
High Tide | 7:03PM1.60m | 9:22AM1.73m | 8:18PM1.53m | 10:36AM1.76m | 9:49PM1.52m | 11:39AM1.83m | 11:16PM1.59m | 12:32PM1.91m | 00:28AM1.71m | 1:18PM1.97m | 1:29AM1.84m | 1:59PM2.02m | 2:21AM1.95m | |||||||
Low Tide | 2:05AM0.22m | 3:08PM1.04m | 3:19AM0.26m | 4:34PM0.97m | 4:36AM0.28m | 5:45PM0.81m | 5:46AM0.26m | 6:41PM0.62m | 6:46AM0.25m | 7:30PM0.44m | 7:40AM0.25m | 8:13PM0.28m | ||||||||
— | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | |
5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | |
mm | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 12 | 12 | 11 | 13 | 11 | 10 | 13 | 15 | 12 | 14 | 14 | 12 | 13 | 12 | 13 | 13 | 12 | 12 |
Feels °C | 8 | 9 | 8 | 8 | 6 | 8 | 7 | 7 | 10 | 12 | 10 | 11 | 11 | 10 | 9 | 9 | 10 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 |
2657 | 1783 | 1580 | 1344 | 2193 | 4242 | 4523 | 5879 | 6119 | 5497 | 5523 | 8931 | 6285 | 4301 | 3268 | 2863 | 2350 | 2185 | 1929 | 1580 | |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | SSE 5 | SW 18 | E 10 | — | SSE 16 | — | SSE 16 | SSE 16 | SSE 15 | S 17 | S 16 | S 14 | — | — | SSE 15 | — | — | — |
16 | 8 | 9 | 396 | 2 | — | 25 | — | 25 | 24 | 23 | 211 | 81 | 37 | — | — | 21 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | S 18 | S 16 | — | — | — | — | — | — | — | — | S 19 | — | — | — | — | — | — | — | — | — |
24 | 20 | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 6 | — | N 3 | NNW 4 | SW 16 | SW 16 | SW 16 | — | SW 16 | — | — | — | — | — | — | — | — | — | ESE 5 |
71 | 175 | — | 5 | 13 | 5205 | 5402 | 10010 | — | 9049 | — | — | — | — | — | — | — | — | — | 38 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 218 | 18 | 0 | 7 | 7 | 356 | 4 | 0 | 0 | 4 | 0 | 4 | 4 | 4 | 18 | 18 | 57 | 28 | 22 | 4 |
Best forecast wave conditions in Cape Otway | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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Information about the Cathedral Rock Surf forecast
The above surf forecast table for Cathedral Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cathedral Rock can be found by selecting the local surf guide option on the grey menu. Our Cathedral Rock 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 (Cathedral Rock) 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 Cathedral Rock 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.
Cathedral Rock is 52 km (32 miles) from the city of Geelong West. If you plan a holiday in Cape Otway, look for hotels and other accommodation in Geelong West. Geelong West has rooms for a wide range of budgets as well as car hire and transport links.











