
Surf Forecasts:
Cyrils and Big Left surf forecast from 21 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 1AM (local time) - 7ft (2.2m), 13s period, SW swell with offshore winds.
- Most powerful swell: Friday 24 Jul, 4AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,482 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 4PM (local time) - 5ft (1.6m), 11s 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 Sunday (Jul 26) at 4PM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 0.2m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cyrils and Big Left in the next 16 days are 4.0m 16s and forecast to arrive on Friday (Jul 24) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Jul 22) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Sun 26th Jul) | 5ft (1.6m) 11s |
| Best Surf | 1AM (Tue 28th Jul) | 7ft (2.2m) 13s |
| Most Powerful | 4AM (Fri 24th Jul) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Cyrils and Big Left over the next 16 days.
The Lowdown
G'day, Rusty here. Let’s have a look at this forecast. We’ve got a run of swell coming through, but it’s a mixed bag with the wind. The standout moment is a real beauty, but you’ll have to be patient for most of it.
We’re looking at Cyrils and Big Left, a solid reef break. Water temp is sitting at 14°, which is about normal for this time of year, nothing to write home about.
The action kicks off on Wednesday the 22nd, but honestly, it’s a write-off. You’ve got a 4ft SW swell on Wednesday morning, but it’s coming with a 19 mph cross-offshore wind that’s just making a mess. The combined energy is a moderate 444. By afternoon, the wind swings onshore and it’s even worse. Don’t bother paddling out.
Thursday the 23rd sees a jump in size. The morning brings a 10ft SW swell with a 14-second period and a cross-off wind, but it’s got a “marginal” feel to it. The combined energy is strong at 5050, but with that much wind, it’s a washing machine. The afternoon is a complete no-go with a 28 mph cross-shore.
Now, Friday the 24th is the real highlight. The morning is the best on offer. You’ve got a solid 12ft SW groundswell with a 15-second period – that’s proper long-period energy, over 8ft so it’s for experienced surfers only. The combined energy is a massive 8961, and the wind is a clean cross-off breeze. This is a big, powerful reef break that will handle that size. Expect crowds to be possible. The afternoon holds up decently too, with a 10ft swell and clean cross-off wind.
Saturday the 25th is still fun, but the swell is easing. A 10ft SW swell in the morning with clean cross-off wind, but it’s starting to drop. The energy is still strong at 2536. The afternoon is a bit smaller at 8ft but still clean.
By Sunday the 26th, the swell is dropping fast. The morning is a 6ft SW swell, still clean, but the energy is weak at 818. The afternoon gets a bit better with a 5ft swell and a light breeze, making for some clean, smaller waves.
Monday the 27th is a bit of a mixed one. Morning has a 6ft SW swell with a 16 mph offshore wind – clean but a bit small. The afternoon is similar with a 6ft swell.
Tuesday the 28th is the second standout. The morning brings a 7ft SW groundswell with a very long 16-second period, and a light 6 mph offshore wind. The combined energy is a strong 2696, and the conditions are described as excellent for experienced surfers. This is a classic reef break setup with that long period, so it’s going to be clean and powerful. Afternoon is still good but with a lighter cross-shore.
From Wednesday the 29th onwards, it gets ugly. The wind turns onshore and stays that way through to Thursday the 31st. The swell is still there, but it’s a messy, blown-out affair. The combined energy drops off significantly.
Then we get a fresh run from Friday the 31st. The afternoon sees a 3ft SW swell with an offshore wind, but it’s small. Saturday the 1st of August morning has a tiny 2ft WSW swell with a 20-second period, which is a weird one, but the wind is offshore. The afternoon picks up to 5ft SW with a 18-second period and a moderate offshore – that’s a promising signal for the long-range.
Sunday the 2nd of August is similar, with 5ft SW swell and a 15-second period, clean offshore. The energy is moderate at 1503. Monday the 3rd has a 3ft swell with a massive 22-second period in the morning, then a 5ft SW swell with a 20-second period and offshore wind in the afternoon. The energy jumps to 3169.
Tuesday the 4th of August is back to big stuff. A 10ft SW swell with a 17-second period and a cross-off wind, but the energy is a huge 4547. The afternoon has a strong offshore wind, powerful at 10ft, but that close to gale force wind makes it hard work.
Wednesday the 5th of August is a write-off with a 12ft swell but a near gale force wind. The rest of the outlook fades out.
So, for the best sessions: Friday the 24th morning is the absolute standout, with that massive, long-period groundswell and clean wind. Tuesday the 28th morning is the other real gem, with clean offshore and a very long period. Everything else is either too small, too windy, or just for the die-hards.
We’ve got a nasty gap of blowout conditions from the 29th to the 31st, so don’t bother.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Wed afternoon. Very mild (max 13°C on Wed morning, min 10°C on Wed night). Winds increasing (moderate winds from the SW on Wed night, near gales from the WSW by Thu night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 15°C on Sun afternoon, min 11°C on Sat night). Winds decreasing (fresh winds from the WSW on Sat morning, light winds from the WNW by Sun afternoon). | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
AM | 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 12 | WSW 12 | SW 11 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | WSW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 16 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
421 | 727 | 1092 | 3067 | 3705 | 7112 | 5357 | 3919 | 4062 | 2536 | 1986 | 1327 | 807 | 617 | 558 | 713 | 961 | 1634 | 2129 | 1760 | 2027 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross | cross-on |
High Tide | 5:09PM2.01m | 6:06AM1.84m | 5:43PM1.90m | 6:53AM1.77m | 6:17PM1.80m | 7:43AM1.70m | 6:53PM1.70m | 8:41AM1.65m | 7:37PM1.61m | 9:48AM1.64m | 8:32PM1.54m | 10:57AM1.67m | 9:43PM1.49m | ||||||||
Low Tide | 11:09AM0.63m | 11:41PM0.27m | 11:50AM0.77m | 00:20AM0.32m | 12:31PM0.90m | 1:00AM0.39m | 1:17PM1.01m | 1:45AM0.46m | 2:12PM1.10m | 2:37AM0.50m | 3:23PM1.16m | 3:38AM0.53m | 4:44PM1.15m | ||||||||
7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | |
— | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | |
mm | — | 3 | 5 | 3 | 1 | 3 | — | — | 2 | 1 | — | — | — | — | — | — | 1 | 1 | — | — | 1 |
Temp °C | 13 | 12 | 11 | 10 | 11 | 11 | 11 | 12 | 13 | 13 | 14 | 12 | 13 | 15 | 14 | 13 | 15 | 14 | 12 | 13 | 13 |
Feels °C | 6 | 6 | 2 | 1 | 0 | 0 | 3 | 4 | 6 | 6 | 9 | 7 | 9 | 13 | 11 | 8 | 12 | 10 | 10 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 12 | E 10 | SW 14 | SW 14 | SSW 18 | — | SW 15 | SW 15 | SW 14 | — | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 16 | SW 15 | SW 15 |
421 | 2 | 285 | 3067 | 31 | — | 5357 | 3919 | 3264 | — | 1659 | 1111 | 807 | 617 | 558 | 713 | 961 | 1634 | 2129 | 1760 | 2027 | |
Swell 2 Height (m) Direction Period (s) | WSW 15 | — | — | — | — | — | — | — | — | — | — | — | SW 17 | WSW 16 | — | SW 15 | SSW 18 | — | SW 16 | — | — |
21 | — | — | — | — | — | — | — | — | — | — | — | 11 | 26 | — | 35 | 31 | — | 567 | — | — | |
Swell 3 Height (m) Direction Period (s) | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 16 | — | — | — | — | — | — | — |
2 | — | — | — | — | — | — | — | — | — | — | — | — | 26 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 4 | WSW 12 | SW 11 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | WSW 13 | SW 12 | SW 12 | SW 11 | — | — | NW 3 | NW 3 | NNW 3 | NNW 3 | NW 3 | — | SW 15 |
21 | 727 | 1092 | 1983 | 3705 | 7112 | 3604 | 2633 | 4062 | 2536 | 1986 | 1327 | — | — | 2 | 5 | 8 | 5 | 7 | — | 1377 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 59 | 73 | 50 | 62 | 62 | 62 | 59 | 462 | 62 | 62 | 62 | 59 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 10 |
Best forecast wave conditions in Mornington Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










