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Surf Forecasts:

Gunnamatta Beach surf break

Gunnamatta Beach surfForecast / VIC – Mornington Peninsula / Australia

information circle12 Day Weather and Surf, issued 4 am Sunday 18 Jan 2026 AEDT
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
17.2° 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 Monday (Jan 19) at 11AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.1m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Gunnamatta Beach in the next 12 days are 1.8m 17s and forecast to arrive on Wednesday (Jan 21) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Monday (Jan 19) at 2AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Mon 19th Jan)2ft (0.6m) 13s
Best Surf 8AM (Sun 25th Jan)3.5ft (1.1m) 15s
Most Powerful 2PM (Wed 21st Jan)6ft (1.8m) 17s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 22°C on Mon afternoon, min 16°C on Sun morning). Winds decreasing (strong winds from the ESE on Sun afternoon, light winds from the SE by Tue morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Fri afternoon, min 13°C on Fri morning). Winds decreasing (strong winds from the SSW on Wed night, light winds from the NE by Fri morning).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
0
1
0
0
1
2
0
0
0
0
1
2
0
1
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
SW
2.3
SE
0.8
SW
0.6
SW
0.6
SW
1.4
SE
0.5
SW
0.4
SW
0.9
SW
1.4
SW
1.6
SW
1.6
SW
1.4
SW
1.3
SW
1.1
SW
1.1
SW
1.1
SW
0.9
SW
0.7
SW
0.6
SW
0.8
SW
Period(s) (?)1471413136122420181716141413131212111215
Wave
Graph
(?)Metric surfscale
Energy kJ (?)26954322814413815272141660122713181179763658444363330228125110326
Wind
(km/h)
30
E
45
ESE
40
E
20
ENE
35
ESE
25
ESE
10
SE
25
SSE
25
ESE
20
SSE
30
SSW
40
SSW
30
S
30
S
25
ESE
10
NE
30
SE
15
ENE
25
N
20
ENE
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		crosscrosscross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
off		offcrosscross-
off		cross-
off		offcross-
off
High Tide
/ height (m)
11:04AM
1.19
1:23AM
1.45
12:18PM
1.20
2:07AM
1.52
1:21PM
1.24
2:45AM
1.59
2:14PM
1.30
3:18AM
1.64
3:02PM
1.37
3:48AM
1.68
3:46PM
1.44
4:17AM
1.70
4:29PM
1.51
4:46AM
1.70
Low Tide
/ height (m)
6:03PM
0.39
7:25AM
0.88
6:59PM
0.35
8:14AM
0.80
7:48PM
0.31
8:54AM
0.70
8:32PM
0.28
9:28AM
0.59
9:12PM
0.28
10:01AM
0.49
9:51PM
0.29
10:32AM
0.38
10:30PM
0.33
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunrise6:15--6:16--6:18--6:18--6:20--6:20--6:22--
Sunset-8:45--8:44--8:44--8:43--8:42--8:42--8:40-
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
---------------------
Temp. °C192121202221172019171716141515161919283429
Feels °C (?)1315141618131717141413117119141414222825
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Gunnamatta Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Gunnamatta Beach at:
surf-forecast.com

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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