Cyrils and Big Left Surf Break

Lat Long: 38.49° S 145.02° E

Issued: 3 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cyrils and Big Left sea temperature is
14.2° C

Slightly warmer than usual

Cyrils and Big Left surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cyrils and Big Left surf forecast from 6 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 4AM (local time) - 5ft (1.6m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 13 Jul, 7AM (local time) - 13ft (4.0m), 15s period, SW swell with 6,987 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 10AM (local time) - 3.5ft (1.0m), 17s 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 Tuesday (Jul 07) at 10AM. The primary swell is predicted to be 1.0m and 17s period with a secondary swell of 0.9m and 13s. 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 15s and forecast to arrive on Monday (Jul 13) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Sunday (Jul 12) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Tue 7th Jul)3.5ft (1.0m) 17s
Best Surf 4AM (Wed 8th Jul)5ft (1.6m) 15s
Most Powerful 7AM (Mon 13th Jul)13ft (4.0m) 15s

Table - best surf conditions forecast for Cyrils and Big Left over the next 16 days.


Updates in  hr  min  s Forecast update imminent

G’day, Rusty here. Let’s have a proper look at what’s coming up for Cyrils and Big Left.

We’ve got a real mixed bag ahead, but there are a few sessions that’ll have the stoke levels high. The water’s sitting at 58°F right now, which is about average for the time of year – nothing out of the ordinary there.

The week kicks off proper on Tuesday morning, July 7. Swell is 3ft from the SW with a very long period of 17 seconds – that’s proper groundswell energy. The combined energy is moderate at 850. Wind is light cross-off from the NE, so expect clean lines. This is a reef set-up, so that long-period swell will really wrap in nicely. Keep in mind crowds are sometimes around, but this morning session is a beauty.

Wednesday morning, July 8 is the standout early call. Swell bumps up to 5ft from the SW, period 19 seconds – that is very long period groundswell. The energy jumps to strong at 2403. Wind is light cross-off from the NE again, making for clean, tidy faces. This is for experienced surfers, as the quality is excellent. Honestly, this is one of the best on offer across the whole run.

Thursday morning, July 9 keeps the run going: 5ft SW swell, 16-second period, moderate energy at 1135. Wind shifts to a light N, cross-off and clean. Another solid session for those who know the reef.

Friday, July 10 is a double-header with both morning and afternoon looking fine. Morning has 5ft SW swell with offshore N wind, strong energy at 1272 and clean. The afternoon stays clean with offshore NNW wind and 5ft swell. Both sessions are excellent for experienced surfers.

Then we hit a rough patch from Saturday, July 11 through the weekend. Strong breeze warnings pop up – 25-28 mph offshore winds from the NNW. While the wind is clean, it’s strong offshore that makes it hard to paddle into. Swell size hangs around 4ft to 7ft, but the conditions are marginal and the scores drop right off. By Sunday, July 12 afternoon, we’re looking at 8ft SW swell with cross-off wind – clean but still tricky.

Monday, July 13 sees a big energy jump. Swell is 13ft from the SW, period 15 seconds, and the combined energy is massive at 11203 – very strong wave energy here. That’s expert-only territory. Wind is cross-off from the W, fresh breeze. It’s clean but this is serious, heavy reef surf. Not one for the faint-hearted.

Tuesday, July 14 stays big: 10ft SW swell, 16-second period, strong energy at 4407. The morning is cross-off and clean, but the afternoon brings rain showers and a cross-shore wind making lumpy chop. Not ideal.

From Wednesday, July 15 through Thursday, July 16, the swell drops a bit. Thursday morning is the pick: 6ft SW, 14 seconds, moderate energy at 1220, cross-off WNW wind keeping it clean. Good for experienced crew.

Friday, July 17 is another clean morning with 7ft SW swell, 15-second period, offshore NNW wind. Energy is strong at 2012. The afternoon stays offshore and clean with 6ft. Both sessions rated as excellent.

Saturday, July 18 fades to 3ft with fresh offshore wind – paddling will be a chore even if it’s clean. Not much to write home about.

Sunday, July 19 picks up again: 6ft SW, 16 seconds, strong energy at 2751, but with strong offshore wind at 25 mph. Clean but hard to get into. Expert paddlers only.

Monday, July 20 sees 10ft SW swell but the period drops to just 8 seconds – that’s short period, so the waves won’t be as well shaped. Cross-off wind but messy.

Tuesday, July 21 is a write-off with strong cross-shore wind and poor conditions.

But hold onto your board – Wednesday, July 22 brings another big one: 12ft SW swell, 16-second period, very strong energy at 8661. This is expert-level, powerful swell with cross-off WNW wind. It’s clean but heavy. If you’re experienced and hungry, this late in the run is worth the wait.

Overall, the standout is Wednesday, July 8 morning – that 19-second period groundswell with clean cross-off wind is the best session of the bunch. Friday, July 10 is a solid second pick with clean offshore wind all day.

Stay safe out there.
Rusty.

Short Range Forecast

Mostly dry. Very mild (max 13°C on Tue afternoon, min 8°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Sat afternoon. Very mild (max 13°C on Fri afternoon, min 9°C on Fri morning). Winds increasing (light winds from the NNW on Fri afternoon, strong winds from the NNW by Sat morning).

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
2
4
3
4
4
3
4
4
4
3
1
1
3
2
1
5
7
6
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
17
1.5
SW
16
1.5
SW
15
1.4
SW
19
2.1
SW
18
1.8
SW
16
1.5
SW
16
1.3
SW
15
1.6
SW
16
1.6
SW
15
1.5
SW
15
1.4
SW
14
1.2
SW
14
1.2
SW
14
2.1
SW
11
2.2
SW
12
2.5
SW
12
4
SW
14
4
SW
15
3.5
SW
16
3
SW
17
Wave Graph
Metric surfscale
Energy kJ
568
1096
962
1357
2714
1571
1041
757
1398
1203
1006
857
581
564
1065
1323
1976
6131
6818
6742
5808
Wind (km/h)
10
NE
10
SE
10
E
10
NE
10
SE
10
NE
5
N
5
ESE
5
N
10
N
10
NNW
25
N
40
NNW
45
NNW
25
WNW
40
NNW
40
NW
30
W
30
W
25
W
25
NW
Wind State
cross-off
cross-on
cross
cross-off
on
cross-off
cross-off
glassy
cross-off
off
off
off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:28PM2.00m
4:53AM1.77m
4:57PM1.97m
5:41AM1.81m
5:30PM1.94m
6:34AM1.85m
6:09PM1.90m
7:34AM1.88m
6:55PM1.86m
8:41AM1.90m
7:51PM1.82m
9:53AM1.94m
8:58PM1.79m
Low Tide
10:07AM0.52m
10:50PM0.49m
10:46AM0.60m
11:24PM0.39m
11:30AM0.70m
00:04AM0.30m
12:19PM0.80m
00:50AM0.22m
1:16PM0.91m
1:45AM0.16m
2:21PM1.00m
2:47AM0.12m
3:36PM1.03m
3:55AM0.09m
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
rain showers
mod rain
rain showers
cloud
light rain
rain showers
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:37
7:35
7:35
7:35
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:12
5:12
5:13
5:13
5:14
5:15
5:15
 mm
1
10
1
3
4
Temp °C
9
13
13
11
11
11
10
10
11
11
13
11
11
13
12
12
13
12
12
12
12
Feels °C
7
11
9
9
8
8
9
8
9
8
9
6
1
4
7
3
4
5
6
6
7
Swell 1
Height (m)
Direction
Period (s)
1
SW
17
1.5
SW
16
1.5
SW
15
1.4
SW
19
2.1
SW
18
1.8
SW
16
1.5
SW
16
1.3
SW
15
1.6
SW
16
1.6
SW
15
1.5
SW
15
1.4
SW
14
1.2
SW
14
1.2
SW
14
2.1
SW
11
2.2
SW
12
2.5
SW
12
4
SW
15
3.5
SW
16
3
SW
17
Energy kJ
568
1096
962
1357
2714
1571
1041
757
1398
1203
1006
857
581
564
1065
1323
1976
6818
6742
5808
Swell 2
Height (m)
Direction
Period (s)
0.9
SW
13
0.3
SSW
16
0.1
SW
24
1.4
SW
15
0.6
SSW
18
0.6
S
16
0.4
SSW
16
0.4
SW
20
0.5
S
17
0.4
SSW
14
0.3
SSW
14
1
WSW
9
0.5
SSW
16
0.8
SSW
17
Energy kJ
282
50
22
784
240
188
82
136
140
69
36
177
155
333
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
12
0.6
S
19
0.2
ESE
11
0.3
SSW
15
0.4
SSW
20
Energy kJ
14
262
12
42
128
Wind waves
Height (m)
Direction
Period (s)
0.4
NNW
3
0.9
NNW
4
1.2
NNW
5
0.7
NW
4
1.1
NW
5
1.3
NW
5
4
SW
14
3
SW
15
0.6
NNW
4
Energy kJ
3
31
61
15
54
80
6131
4385
10
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
4
4
4
4
3
4
4
4
3
2
3
3
3
4
9
5
5
5
Distance (km)
0
10
0
0
10
0
0
0
0
0
0
0
50
91
8
58
90
50
59
1
8
Best forecast wave conditions in Mornington Peninsula
Rating
(10 max)
4
4
4
4
5
4
4
3
4
4
4
3
3
5
5
Best forecast wave conditions in Australia
Rating
(10 max)
7
5
5
7
5
6
4
4
5
4
4
4
4
4
5
5
4
9
9
9
5
Header Global
Rating
(10 max)
7
5
5
9
8
9
7
7
6
6
6
5
5
4
5
5
4
9
7
5
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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