
Surf Forecasts:
Cyrils and Big Left surf forecast from 15 Jul 2026:
- Best quality surf: Friday 17 Jul, 1AM (local time) - 7ft (2.1m), 15s period, SW swell with glassy winds.
- Most powerful swell: Thursday 16 Jul, 7AM (local time) - 8ft (2.5m), 15s period, SW swell with 2,562 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 1AM (local time) - 7ft (2.1m), 15s period with SW swell.
Best Forecast Surf Conditions for Cyrils and Big Left this week:
The surf forecast for Cyrils and Big Left over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 17) at 1AM. The primary swell is predicted to be 2.1m and 15s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cyrils and Big Left in the next 16 days are 2.5m 15s and forecast to arrive on Thursday (Jul 16) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Jul 20) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 17th Jul) | 7ft (2.1m) 15s |
| Best Surf | 1AM (Fri 17th Jul) | 7ft (2.1m) 15s |
| Most Powerful | 7AM (Thu 16th Jul) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Cyrils and Big Left over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get into it.
First up, we’ve only got one break on the cards for this outlook, and it’s Cyrils and Big Left. It’s a reef set-up, exposed to the south swell, and it likes the swell coming from straight south. The water temp is about average for this time of year, nothing out of the ordinary.
We start off on Thursday the 16th of July, but honestly, it’s a write-off. The swell is there at 8ft, period a solid 15 seconds, and the combined energy is pumping (2416), but the wind is a light cross-shore in the morning going cross-onshore in the arvo. It’s messy, and the report calls it marginal – I wouldn’t paddle out unless I had to.
Friday the 17th is where it starts to get interesting. Still the same south-west groundswell, hanging around 7ft with a long 16-second period, delivering serious energy (2275 in the morning). But the big difference is the wind: offshore from the NNW, light to gentle. That’s clean faces. This is a standout for experienced surfers – it’s not for beginners at that size and with that long period, it’ll be lining up nicely on the reef, but the sets will be spaced out.
Saturday the 18th keeps the goodness rolling. Morning sees a 6ft south-west swell, still a decent 14-second period, with gentle offshore wind. By the afternoon, it drops a touch to 5ft, the period shortens a little to 13 seconds, but the wind goes glassy. Glassy! That’s as good as it gets for clean conditions. Moderate energy (880-1194) but the quality is there.
Sunday the 19th and Monday the 20th are smaller – down around 3ft to 4ft – but the wind stays offshore. It’s not going to blow you away, but cleaner smaller waves are still fun on a reef. The energy drops off to 413-631.
Tuesday the 21st afternoon gives a little bump up to 4ft from the WSW with 14-second period and gentle offshore wind. It’s a nice little session if you’re keen.
Wednesday the 22nd stays small and clean, with a glassy afternoon. Thursday the 23rd is similar, 4ft, offshore to cross-offshore, clean.
Now, here’s the big one, but with a warning. Friday the 24th of July morning – the swell jumps back up to 8ft, 14-second period, and the wind is a strong offshore from the NW at 28 mph. The energy is huge (2110). This is proper, heavy, powerful reef surf. Only for experts. The afternoon though, the wind swings and goes strong cross-shore, and the report calls it poor. So that morning window is the only chance, and it’s a serious one.
Saturday the 25th and Sunday the 26th are blown out with cross-onshore winds and lumpy conditions. Swell stays around 7ft to 7ft, but it’s not worth it unless you’re a masochist.
Monday the 27th of July through Tuesday the 28th, the wind goes offshore again, but it’s strong to fresh, and the swell stays around 7ft. It’s rideable for experienced surfers but the wind might make it a battle to get out.
Wednesday the 29th looks cleaner again, with a drop to 5ft and a gentler cross-offshore breeze. That’s a more relaxed session.
The last few days of the month into the 30th and 31st, the wind turns crappy again – cross-on and onshore, with rain. I’d give it a miss.
Best on offer: Without a doubt, Friday 17th July morning is the standout. Clean offshore wind, strong 7ft south-west swell with 16-second period, huge energy. Second best is Saturday 18th afternoon for that glassy, clean, fun 5ft surf.
Remember, crowds can show up here sometimes, so get in early.
Rusty
Short Range ForecastMostly dry. Very mild (max 13°C on Wed night, min 10°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Tue afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 18 | SW 16 | SW 15 | WSW 14 | SW 13 | WSW 14 | WSW 13 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||||
2125 | 2416 | 2372 | 1915 | 2035 | 2241 | 1563 | 1154 | 880 | 563 | 358 | 278 | 252 | 587 | 269 | 367 | 261 | 617 | 546 | 336 | 330 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | glassy | off | off | off | off | glassy | cross-off | off | off | off | off | off | off | off | off | off | off | glassy |
High Tide | 11:30PM1.83m | 1:04PM2.14m | 00:42AM1.89m | 1:53PM2.19m | 1:47AM1.95m | 2:38PM2.22m | 2:46AM1.99m | 3:20PM2.21m | 3:41AM1.99m | 3:58PM2.18m | 4:31AM1.96m | 4:35PM2.11m | 5:19AM1.91m | 5:09PM2.01m | |||||||
Low Tide | 6:11AM0.05m | 7:05PM0.74m | 7:11AM0.07m | 8:00PM0.58m | 8:06AM0.12m | 8:50PM0.43m | 8:57AM0.22m | 9:37PM0.31m | 9:43AM0.34m | 10:20PM0.25m | 10:27AM0.49m | 11:01PM0.24m | 11:09AM0.63m | ||||||||
— | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | |
— | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 13 | 12 | 12 | 12 | 11 | 13 | 12 | 11 | 13 | 12 | 11 | 14 | 14 | 12 | 14 | 12 | 12 | 15 | 14 | 11 | 12 |
Feels °C | 10 | 10 | 10 | 10 | 9 | 11 | 10 | 9 | 12 | 10 | 8 | 11 | 11 | 6 | 10 | 7 | 8 | 11 | 10 | 9 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 16 | SW 15 | WSW 14 | SW 13 | WSW 14 | WSW 13 | SW 12 | SW 12 |
2125 | 2416 | 2372 | 1915 | 2035 | 2241 | 1563 | 1154 | 880 | 563 | 358 | 278 | 169 | 587 | 269 | 367 | 261 | 617 | 546 | 336 | 330 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSW 16 | SSW 16 | SSW 14 | SSW 14 | — | — | SW 20 | SW 20 | SW 18 | SSW 10 | WSW 12 | SSW 15 | SE 10 | S 9 | — | E 10 | E 10 |
— | — | — | — | 240 | 140 | 68 | 40 | — | — | 16 | 60 | 252 | 19 | 90 | 21 | 4 | 2 | — | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 20 | WSW 20 | SSW 10 | SSW 16 | SE 11 | SE 10 | SE 10 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 39 | 75 | 20 | 25 | 4 | 4 | 4 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 3 | NW 3 | — | NW 2 | — | NW 2 | NW 3 | NW 3 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 1 | — | 1 | — | 1 | 1 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mornington Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Cyrils and Big Left Surf forecast
The above surf forecast table for Cyrils and Big Left provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cyrils and Big Left can be found by selecting the local surf guide option on the grey menu. Our Cyrils and Big Left 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 (Cyrils and Big Left) 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 Cyrils and Big Left 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.
Cyrils and Big Left is 30 km (19 miles) from Mornington. If you plan a holiday in Mornington Peninsula, 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.











