Gunnamatta Beach Surf Break

Lat Long: 38.46° S 144.87° E

Gunnamatta Beach Surf Forecast and Surf Report

Issued: 10 am 21 Oct 2026 (local time)

Forecast update in  hr  min

Today's Gunnamatta Beach sea temperature is
15.4°C
2.1° 

Gunnamatta Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Gunnamatta Beach surf forecast from 21 Oct 2026:

  • Best quality surf: Thursday 22 Oct, 2AM (local time) - 6.5ft (2.0m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Thursday 22 Oct, 8AM (local time) - 7ft (2.2m), 17s period, SW swell with 2,748 kJ wave energy.
  • Next surfable swell (1★+): Thursday 22 Oct, 2AM (local time) - 6.5ft (2.0m), 15s period with SW swell.

Best Forecast Surf Conditions for Gunnamatta Beach this week:

The surf forecast for Gunnamatta Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 22) at 2AM. The primary swell is predicted to be 2.0m and 15s period with a secondary swell of 0.4m and 17s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Gunnamatta Beach in the next 16 days are 2.2m 17s and forecast to arrive on Thursday (Oct 22) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Friday (Oct 23) at 8AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 22nd Oct)6.5ft (2.0m) 15s
Best Surf 2AM (Thu 22nd Oct)6.5ft (2.0m) 15s
Most Powerful 8AM (Thu 22nd Oct)7ft (2.2m) 17s

Table - best surf conditions forecast for Gunnamatta Beach over the next 16 days.


Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Warm (max 28°C on Fri afternoon, min 14°C on Wed morning). Winds decreasing (strong winds from the N on Fri morning, calm by Fri night).

Days 4-6 Weather Summary

Heavy rain (total 45mm), heaviest during Sun afternoon. Very mild (max 14°C on Sat morning, min 11°C on Mon night). Winds decreasing (fresh winds from the SW on Sun night, light winds from the NW by Mon night).

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
4
4
4
3
1
2
4
1
2
1
0
0
0
0
1
4
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
11
1
SW
13
2
SW
15
2.2
SW
17
2.1
SW
16
1.7
SW
15
1.3
SW
18
1.9
SW
16
2.1
SW
16
2
SW
15
1.8
SW
15
1.7
SW
14
1.8
SW
15
1.6
SW
14
1.4
SW
14
1.5
SW
14
1.4
SW
13
1.7
WSW
14
1.5
SW
13
1.8
SW
12
2.3
SW
12
Wave Graph
Metric surfscale
Energy kJ
185
352
1785
2621
2054
1262
1007
1875
2297
1692
1421
1130
1325
1094
776
804
711
1005
757
910
1398
Wind (km/h)
10
SSW
20
SSE
10
E
15
N
15
NE
15
N
45
N
25
N
5
E
15
SSW
15
SSE
30
SE
25
SSW
30
S
30
SW
15
WNW
15
WSW
15
N
30
N
20
WNW
10
SSE
Wind State
on
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
glassy
on
cross
cross
cross-on
cross-on
on
cross-on
on
cross-off
cross-off
cross
cross
High Tide
6:54PM1.23m
8:02AM1.33m
8:01PM1.18m
9:01AM1.28m
9:31PM1.20m
10:05AM1.27m
10:58PM1.29m
11:04AM1.29m
00:05AM1.43m
11:56AM1.33m
00:59AM1.59m
12:42PM1.39m
1:47AM1.74m
Low Tide
1:18PM0.76m
1:17AM0.56m
2:16PM0.77m
2:20AM0.65m
3:26PM0.73m
3:43AM0.70m
4:32PM0.64m
5:06AM0.71m
5:28PM0.51m
6:13AM0.67m
6:17PM0.35m
7:07AM0.61m
7:03PM0.19m
part cloud
clear
clear
clear
clear
clear
clear
part cloud
light rain
heavy rain
rain showers
rain showers
heavy rain
mod rain
rain showers
clear
part cloud
light rain
part cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
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—
6:26
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—
6:24
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—
6:22
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—
6:22
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—
6:20
—
—
6:18
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
7:43
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—
7:44
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—
7:45
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—
7:45
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—
7:46
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—
7:47
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—
7:50
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 mm
—
—
—
—
—
—
—
—
2
11
4
2
14
10
2
—
—
2
—
1
3
Temp °C
14
16
17
23
27
26
21
28
17
14
13
14
12
13
13
12
14
12
12
13
13
Feels °C
12
14
16
20
24
22
13
23
12
12
10
10
6
10
8
6
10
7
5
6
10
  • 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 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 16 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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