Gunnamatta Beach surf break

Gunnamatta Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle12 Day Weather and Surf, issued 3 pm Friday 11 Jul 2025 AEST
Forecast update in hr  min  s Forecast update imminent
Gunnamatta Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gunnamatta Beach sea temperature is
13.8° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Gunnamatta Beach this week:

The surf forecast for Gunnamatta Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 12) at 7AM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.4m and 20s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Gunnamatta Beach in the next 12 days are 4.5m 14s and forecast to arrive on Monday (Jul 14) at 4AM. Winds are predicted to be onshore 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 13) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 12th Jul)8ft (2.5m) 13s
Best Surf10AM (Mon 14th Jul)11ft (3.5m) 14s
Most Powerful 4AM (Mon 14th Jul)15ft (4.5m) 14s

Table - best surf conditions forecast for Gunnamatta Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
3
SW
2.5
SW
2.4
SW
2.2
SW
2.1
SW
1.8
SW
1.9
SW
4
SW
3.5
SW
2.5
SW
2
SW
1.8
SW
1.9
SW
1.6
SW
1.8
SW
2.3
SW
2.2
SW
2.5
SW
2.5
SW
2.1
SW
3
SW
2.5
SW
2.3
SW
2.5
SW
3
SW
3
SW
3
SW
2.5
SW
2.5
SW
2.3
SW
2.1
SW
1.8
SW
1.5
SW
1.2
SW
1.1
SW
0.9
WSW
Period(s) (?)131313131615141314131313131212121314141918171616161917171615141413131212
Wave
Graph
(?)Metric surfscale
Energy (?)2886223221782564229114581453608537882310138110081088776104116362142333239395223511439402860362339737384515938333194242019451324747480408499
Wind
(km/h)
35
SW
20
W
30
NW
15
NNW
35
N
50
N
50
NW
40
SW
20
WNW
35
WNW
30
WNW
30
WNW
25
WSW
30
WNW
30
NW
25
NW
35
NNW
40
WNW
30
SW
10
WSW
10
N
5
NE
20
N
40
N
40
N
20
NNW
30
N
30
N
35
NNW
45
N
45
N
35
NNW
40
WNW
60
W
45
WNW
45
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
crosscross-
off
cross-
off
cross-
off
crossoncross-
on
cross-
on
crosscrosscross-
on
crosscrosscrosscross-
off
crossoncross-
on
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
11:29PM
1.23
1:13PM
1.57
12:26AM
1.27
1:52PM
1.63
1:19AM
1.32
2:27PM
1.67
2:09AM
1.39
3:01PM
1.70
2:58AM
1.45
3:33PM
1.71
3:46AM
1.51
4:06PM
1.70
4:35AM
1.55
4:40PM
1.68
5:27AM
1.57
5:17PM
1.64
6:22AM
1.57
5:57PM
1.59
7:22AM
1.55
6:43PM
1.53
8:28AM
1.53
7:37PM
1.46
9:41AM
1.52
Low Tide
/ height (m)
6:32PM
0.85
6:07AM
0.29
7:19PM
0.78
6:55AM
0.26
8:00PM
0.70
7:40AM
0.24
8:37PM
0.60
8:23AM
0.24
9:13PM
0.49
9:05AM
0.27
9:49PM
0.38
9:48AM
0.32
10:27PM
0.28
10:32AM
0.41
11:07PM
0.19
11:18AM
0.51
11:50PM
0.13
12:08PM
0.62
12:38AM
0.11
1:03PM
0.72
1:32AM
0.11
2:07PM
0.81
2:34AM
0.14
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
Sunrise--7:35--7:35--7:35--7:35--7:33--7:33--7:33--7:31--7:31--7:31--7:31--7:30
Sunset5:15--5:15--5:15--5:16--5:16--5:17--5:19--5:20--5:20--5:21--5:22--5:22--
rain showerspart cloudclearpart cloudcloudcloudlight rainrain showersrain showerspart cloudrain showersrain showersrain showerspart cloudpart cloudpart cloudrain showerslight rainrain showerspart cloudclearclearpart cloudpart cloudclearpart cloudpart cloudpart cloudlight rainpart cloudpart cloudrain showerspart cloudrain showersmod rainrain showers
Rain (mm)
1-----421-111---131---------2--6-473
Temp. °C13131214131513111111911121113151211121210111011131313151312121210101012
Feels °C (?)5871074314324657943577952476853431-3-11

Short Range Forecast: Light rain (total 8mm), mostly falling on Sun afternoon. Very mild (max 15°C on Sun morning, min 10°C on Sat morning). Winds increasing (light winds from the NNW on Sat afternoon, near gales from the WSW by Sun afternoon).

Days 3-6 Weather Summary Light rain (total 7mm), mostly falling on Thu morning. Very mild (max 15°C on Wed afternoon, min 8°C on Mon night). Mainly strong winds.

Days 6-9 Weather Summary Some drizzle, heaviest during Thu afternoon. Very mild (max 13°C on Sat afternoon, min 9°C on Fri night). Winds increasing (calm on Thu night, strong winds from the N by Sat afternoon).

Long Range Forecast: Heavy rain (total 22mm), heaviest during Mon night. Very mild (max 15°C on Sun afternoon, min 8°C on Tue night). Winds increasing (fresh winds from the N on Sun afternoon, near gales from the NW by Tue morning).

  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Gunnamatta Beach Surf forecast

The above surf forecast table for Gunnamatta Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Gunnamatta Beach can be found by selecting the local surf guide option on the grey menu. Our Gunnamatta Beach 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 (Gunnamatta Beach) 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 Gunnamatta Beach 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.

Gunnamatta Beach is 31 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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