Gunnamatta Beach Surf Forecast

/ VIC – Mornington Peninsula (24 breaks) / Victoria (127 breaks) /

Australia (828 breaks) / Lat Long: (38.46° S 144.87° E)

Surf Forecasts:

Gunnamatta Beach surfForecast / VIC – Mornington Peninsula / Australia

12 Day Weather and Surf, issued 3 am Thursday 04 Sep 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 13.1° 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 Friday (Sep 05) at 7AM. The primary swell is predicted to be 3.0m and 15s period with a secondary swell of 0.5m and 16s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Gunnamatta Beach in the next 12 days are 3.5m 14s and forecast to arrive on Thursday (Sep 04) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Sunday (Sep 07) at 1PM.

Wave Type	Time (AEST) & Date	Wave Height & Period
Next good surf (1 star+)	7AM (Fri 5th Sep)	10ft (3.0m) 15s
Best Surf	7AM (Fri 5th Sep)	10ft (3.0m) 15s
Most Powerful	10PM (Thu 4th Sep)	11ft (3.5m) 14s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Some drizzle, heaviest during Thu morning. Very mild (max 18°C on Sat afternoon, min 8°C on Fri night). Winds increasing (light winds from the SE on Fri morning, strong winds from the N by Sat night).									Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Tue night. Very mild (max 18°C on Sun afternoon, min 12°C on Mon night). Winds decreasing (near gales from the N on Sun morning, calm by Mon night).
	Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09			Wednesday 10
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	3	2	3	1	2	1	0	0	0	0	0	2	3	1	2	1	!	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	SW	SW	SW	SW	SSW	S	SSW
Period(s) (?)	14	14	14	14	14	13	13	12	12	11	11	15	13	13	17	16	17	14	12	8	8
Wave Graph (?)
Energy (?)	2577	4097	3294	2914	2429	1613	760	601	241	195	107	129	458	555	402	980	2009	1302	1930	2115	1888
Wind (km/h)	WNW	WSW	SW	SSE	SE	ENE	NNE	NNE	NE	N	N	NNW	NW	WSW	N	N	SSE	ESE	E	ENE	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	on	cross	cross	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross	cross- on	glass	glass	cross- on	cross- off	cross- off	off	cross- on
High Tide / height (m)		6:30PM 1.27		8:54AM 1.29		7:34PM 1.21	10:12AM 1.32		9:11PM 1.20	11:15AM 1.39		10:46PM 1.27	12:02PM 1.46		11:59PM 1.40	12:42PM 1.54		12:57AM 1.56		1:20PM 1.61	1:48AM 1.70
Low Tide / height (m)		1:09PM 0.92	1:36AM 0.44		2:28PM 0.96	2:48AM 0.47		4:04PM 0.92		4:07AM 0.46	5:17PM 0.80		5:19AM 0.42	6:08PM 0.64		6:18AM 0.37	6:51PM 0.44		7:09AM 0.34		7:32PM 0.26

	Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09			Wednesday 10
Sunrise	6:39	-	-	6:37	-	-	6:35	-	-	6:35	-	-	6:33	-	-	6:31	-	-	6:30	-	-
Sunset	-	6:00	-	-	6:00	-	-	6:01	-	-	6:02	-	-	6:04	-	-	6:04	-	-	6:05	-

Rain (mm)	1	-	-	-	-	-	-	-	-	1	-	2	-	1	1	-	-	3	7	34	6
Temp. °C	11	11	11	11	10	9	16	18	17	17	18	17	16	17	15	13	14	13	14	13	12
Feels °C (?)	3	0	3	7	6	2	11	14	13	7	8	11	11	13	14	12	11	8	8	11	5

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for VIC - Mornington Peninsula

Wind Update The wind is still cross-on at Gunnamatta Beach (fresh winds from the W at Frankston 40 km from Gunnamatta Beach). 2.8m 13s groundswell from the WSW with a 1.6m 13s groundswell, also from the WSW. 2 swells combining so expect closeout sets.
1 hour 41 minutes ago Gunnamatta Beach

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40 km away, 1 h 41 min ago

31 km/h

0.0

13.1

Air / Water (°C)

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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.

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.