Portsea Back Beach Surf Forecast

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

Australia (828 breaks) / Lat Long: (38.33° S 144.69° E)

Surf Forecasts:

Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia

12 Day Weather and Surf, issued 10 pm Saturday 08 Nov 2025 AEDT

Forecast update in hr min s Forecast update imminent

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

Today's Portsea Back Beach sea temperature is 14.5° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Portsea Back Beach this week:

The surf forecast for Portsea Back Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 14) at 8AM. The primary swell is predicted to be 2.0m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Portsea Back Beach in the next 12 days are 3.5m 13s and forecast to arrive on Wednesday (Nov 12) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Nov 15) at 5AM.

Wave Type	Time (AEDT) & Date	Wave Height & Period
Next good surf (1 star+)	8AM (Fri 14th Nov)	6.5ft (2.0m) 11s
Best Surf	8AM (Fri 14th Nov)	6.5ft (2.0m) 11s
Most Powerful	8PM (Wed 12th Nov)	11ft (3.5m) 13s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Moderate rain (total 11mm), heaviest on Mon night. Very mild (max 16°C on Mon afternoon, min 9°C on Mon night). Mainly strong winds.										Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Wed afternoon, min 8°C on Tue night). Winds decreasing (fresh winds from the SSW on Thu night, light winds from the E by Fri morning).
		Sunday 09			Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Sat 15
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	2	3	3	1	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	WSW	SW	WSW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	12	12	12	11	11	12	12	13	7	12	11	13	13	12	12	12	11	11	11	11	10
Wave Graph (?)
kJ (?)	677	1080	1055	350	756	1169	826	1569	696	1052	1226	3504	3219	3077	2221	1546	821	582	423	258	265
Wind (km/h)	SSW	SW	SSW	W	WNW	SSW	WNW	SW	SSW	WNW	WNW	WSW	WNW	W	SW	SSW	E	ESE	ENE	WNW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	on	cross- on	cross- on	on	cross- on	on	on	cross	cross- on	cross- on	cross- on	cross- on	on	cross- on	cross- off	cross- off	cross- off	cross	on
High Tide / height (m)	3:13AM 1.67		2:39PM 1.41	3:58AM 1.67		3:27PM 1.41	4:43AM 1.62		4:15PM 1.38		5:27AM 1.55	5:06PM 1.32		6:12AM 1.46	6:02PM 1.25		6:57AM 1.37	7:05PM 1.18		7:45AM 1.29
Low Tide / height (m)	8:24PM 0.01	9:15AM 0.56		9:11PM -0.01	10:00AM 0.54		9:57PM 0.01	10:44AM 0.54		10:44PM 0.08	11:30AM 0.54		11:31PM 0.19	12:18PM 0.54		12:20AM 0.32	1:09PM 0.54		1:13AM 0.46		2:06PM 0.53

		Sunday 09			Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Sat 15
Sunrise	-	6:05	-	-	6:03	-	-	6:03	-	-	6:03	-	-	6:01	-	-	6:01	-	-	6:00	-
Sunset	-	-	8:04	-	-	8:05	-	-	8:06	-	-	8:07	-	-	8:08	-	-	8:09	-	-	8:10

Rain (mm)	1	-	-	-	-	1	6	3	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	12	12	13	13	14	16	11	11	12	12	14	17	15	15	16	13	12	14	14	20	20
Feels °C (?)	4	6	6	6	8	11	6	2	2	4	6	11	11	9	10	5	10	10	10	15	14

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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Information about the Portsea Back Beach Surf forecast

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

Portsea Back Beach is 29 km (18 miles) from Geelong. If you plan a holiday in Mornington Peninsula, look for hotels and other accommodation in Geelong. Geelong has rooms for a wide range of budgets as well as car hire and transport links.