Surf Forecasts:
Cyrils and Big Left surf forecast from 18 Jul 2026:
- Best quality surf: Saturday 25 Jul, 4PM (local time) - 6.5ft (2.0m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 24 Jul, 4PM (local time) - 13ft (4.0m), 14s period, WSW swell with 5,722 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 7AM (local time) - 3.5ft (1.1m), 13s 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 19) at 7AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.1m and 21s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cyrils and Big Left in the next 16 days are 4.0m 14s and forecast to arrive on Friday (Jul 24) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (Jul 22) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 19th Jul) | 3.5ft (1.1m) 13s |
| Best Surf | 4PM (Sat 25th Jul) | 6.5ft (2.0m) 13s |
| Most Powerful | 4PM (Fri 24th Jul) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Cyrils and Big Left over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a solid 16-day window at Cyrils and Big Left – a reef setup that’s fairly consistent and exposed to the south-west groundswell. The optimum direction is south, and most of the swell comes in from the south-west, so that’s a good match. Offshore wind is from the north-northwest, which is your classic clean line maker. Crowds are possible – it’s a known spot, but not always packed.
The run starts off small and tidy on Sunday 19 July. Early morning you’ve got 3.6ft south-west swell with a 13‑second period and a
Short Range ForecastMostly dry. Very mild (max 15°C on Sun afternoon, min 11°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Wed morning. Very mild (max 12°C on Tue night, min 8°C on Thu night). Winds increasing (moderate winds from the NW on Tue night, strong winds from the WSW by Wed night). | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 13 | SW 14 | SW 15 | SW 14 | WSW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 494 | 364 | 236 | 197 | 502 | 226 | 437 | 799 | 700 | 456 | 367 | 297 | 1585 | 3126 | 3466 | 3967 | 3373 | 5722 | 3325 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:46AM1.99m | 3:20PM2.21m | 3:41AM1.99m | 3:58PM2.18m | 4:31AM1.96m | 4:35PM2.11m | 5:19AM1.91m | 5:09PM2.01m | 6:06AM1.84m | 5:43PM1.90m | 6:53AM1.77m | 6:17PM1.80m | |||||||
Low Tide | 8:57AM0.22m | 9:37PM0.31m | 9:43AM0.34m | 10:20PM0.25m | 10:27AM0.49m | 11:01PM0.24m | 11:09AM0.63m | 11:41PM0.27m | 11:50AM0.77m | 00:20AM0.32m | 12:31PM0.90m | 1:00AM0.39m | |||||||
 |  |  |  | | |  | | | |  |  |  | | | | | | | |
 | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — |
 | — | — | 5:20 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | 5 | 3 | 5 | 3 | — | 1 | — | — | 1 |
Temp °C | 13 | 12 | 15 | 14 | 12 | 15 | 13 | 12 | 14 | 12 | 11 | 12 | 11 | 10 | 11 | 10 | 10 | 12 | 12 |
Feels °C | 11 | 8 | 12 | 10 | 6 | 11 | 9 | 7 | 10 | 6 | 5 | 6 | 4 | 0 | 2 | 2 | 1 | 4 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 16 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | — | — | SSW 18 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 494 | 364 | 236 | 167 | 502 | 226 | 437 | 799 | 700 | 456 | 367 | 297 | — | — | 32 | 3967 | 3373 | 4395 | 3325 |
Swell 2 Height (m) Direction Period (s) | — | SW 20 | SW 20 | SW 18 | S 10 | WSW 12 | WSW 18 | SSW 14 | — | E 10 | SW 8 | — | — | — | — | SSW 16 | — | — | — |
| kJ | — | 16 | 60 | 197 | 2 | 119 | 32 | 36 | — | 2 | 28 | — | — | — | — | 215 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 22 | WSW 20 | WSW 20 | SSW 10 | SSW 16 | WSW 12 | SSW 15 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 9 | 39 | 75 | 20 | 25 | 14 | 21 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 3 | N 3 | NW 3 | NNW 3 | NNW 3 | NNW 3 | W 6 | WSW 6 | SW 11 | SW 13 | SW 14 | NW 4 | NW 4 | WSW 14 | — |
| kJ | — | — | — | — | 2 | 1 | 2 | 4 | 6 | 9 | 77 | 185 | 1585 | 3126 | 3466 | 6 | 20 | 5722 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 50 | 50 | 59 | 62 | 462 | 73 | 58 | 90 | 90 | 59 |
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.
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