
Surf Forecasts:
Gunnamatta Beach surf forecast from 6 Jul 2026:
- Best quality surf: Monday 13 Jul, 4PM (local time) - 15ft (4.5m), 15s period, WSW swell with cross-onshore winds.
- Most powerful swell: Monday 13 Jul, 7AM (local time) - 16ft (5.0m), 15s period, SW swell with 9,947 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 10PM (local time) - 4.5ft (1.3m), 14s 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 Monday (Jul 06) at 10PM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.3m and 5s. 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 5.0m 15s and forecast to arrive on Monday (Jul 13) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Saturday (Jul 11) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 6th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 4PM (Mon 13th Jul) | 15ft (4.5m) 15s |
| Most Powerful | 7AM (Mon 13th Jul) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Gunnamatta Beach over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here, let’s have a yarn about the surf coming up at Gunnamatta Beach.
We’ve got a solid run of swell on the way, but it’s a bit of a mixed bag for conditions. The first main window kicks off on Monday the 6th with a 5ft SW swell, a 14-second period, and glassy conditions. The water’s sitting at 58°, which is a touch warmer than average for the time of year. Clean, lined-up waves with moderate energy (823) – a real nice way to ease into the week.
Now, if you’re looking for the stand-out, Tuesday the 7th morning is the one. Swell bumps up to 5ft from the SW, period jumps to a very long 17 seconds, and we’ve got offshore NE wind. The combined energy is strong (1624), promising powerful, well-shaped sets. This is proper groundswell – for experienced surfers only, but the quality will be exceptional. Keep in mind, with that long period, it’ll be better if the tide pushes it a bit. Tuesday afternoon the wind swings SE though, so the morning session is the go.
Wednesday the 8th morning is also a cracker: offshore ENE breeze, 5ft SW swell and an 18-second period – that’s about as clean as it gets, with energy readings up at 2524. You’ll want to be on it early before the SE cross-shore kicks in later. Thursday the 9th holds clean conditions too, with a light N cross-off in the morning and glassy NE wind in the afternoon, delivering 5ft and 4ft SW swells respectively.
Friday the 10th is still good, with a consistent 5-5ft SW swell and cross-off northerly winds – clean shape and rideable all day.
Then we hit a rough patch. From Saturday the 11th right through to Monday the 20th, the wind goes feral. Strong to gale-force N and NW, with cross-off and cross-on directions blowing the surface out. Swell sizes jump up to a massive 15ft around the 13th – way too big and messy for Gunnamatta Beach. The combined energy hits 17560 on the Monday afternoon, but it’s blown out and angry. Honestly, it looks more like a kite-surfing zone that week.
There’s a glimmer of hope on Thursday the 16th – clear skies, glassy wind, and a 6ft SW swell (period 12 seconds). That afternoon session will have clean, powerful waves for experienced crew. The morning of Friday the 17th still has some clean 5ft SW swell, but the fresh NNW wind makes it less appealing.
After that, from Saturday the 18th to Tuesday the 21st, it’s back to strong winds and messy or blown-out conditions. Small swells in the 4-6ft range, but the wind ruins any chance of quality.
All in all, Gunnamatta’s best bet is the Tuesday the 7th morning session, with that long-period SW groundswell and offshore wind. Wednesday the 8th morning is a close second. After that, you’re picking through the rubble until Thursday the 16th afternoon.
Stay safe, keep an eye on that wind, and if it’s howling, don’t bother paddling out.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Tue night, min 9°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri afternoon, min 9°C on Thu night). Winds increasing (calm on Thu afternoon, near gales from the NNW by Sun morning). | ||||||||||||||||||||
Mon 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 13 | SW 17 | SW 16 | SW 15 | SW 18 | SW 18 | SW 16 | SW 15 | SW 15 | SW 17 | SW 15 | SW 15 | SW 15 | SW 14 | WSW 14 | WSW 10 | SW 10 | SW 11 | SW 14 | SW 15 |
Wave Graph | |||||||||||||||||||||
810 | 503 | 1282 | 1200 | 1169 | 1606 | 2888 | 1697 | 1028 | 757 | 1519 | 1219 | 993 | 773 | 589 | 501 | 528 | 616 | 741 | 7717 | 9818 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | off | cross | cross-off | off | cross | off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on |
High Tide | 4:08AM1.39m | 4:25PM1.62m | 4:51AM1.42m | 4:55PM1.59m | 5:39AM1.46m | 5:27PM1.56m | 6:32AM1.49m | 6:05PM1.52m | 7:32AM1.51m | 6:51PM1.49m | 8:40AM1.53m | 7:47PM1.45m | 9:53AM1.56m | ||||||||
Low Tide | 10:16PM0.47m | 10:05AM0.42m | 10:48PM0.40m | 10:44AM0.49m | 11:22PM0.32m | 11:27AM0.57m | 00:01AM0.25m | 12:16PM0.66m | 00:47AM0.18m | 1:13PM0.75m | 1:42AM0.13m | 2:20PM0.83m | 2:45AM0.10m | ||||||||
— | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | |
5:12 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | 5:15 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | — | — | 4 | 7 | 3 |
Temp °C | 12 | 11 | 10 | 12 | 13 | 10 | 12 | 11 | 10 | 11 | 11 | 11 | 13 | 11 | 13 | 11 | 10 | 13 | 13 | 11 | 11 |
Feels °C | 10 | 9 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 8 | 7 | 9 | 6 | 4 | 1 | 3 | 2 | 3 | 0 | 0 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 17 | SW 16 | SW 15 | SW 18 | SW 18 | SW 16 | SW 15 | SW 15 | SW 17 | SW 15 | SW 15 | SW 15 | SW 14 | WSW 14 | SW 12 | SW 10 | SW 11 | S 15 | S 16 |
810 | 503 | 1282 | 1200 | 1169 | 1606 | 2888 | 1697 | 1028 | 757 | 1519 | 1219 | 993 | 773 | 589 | 501 | 278 | 616 | 741 | 159 | 127 | |
Swell 2 Height (m) Direction Period (s) | SE 5 | SW 19 | SW 13 | SSW 16 | SW 24 | SW 14 | S 18 | S 16 | SSW 16 | SSW 15 | SSW 18 | S 16 | S 16 | — | — | NE 6 | — | — | SW 18 | — | — |
13 | 57 | 282 | 51 | 22 | 667 | 222 | 131 | 47 | 44 | 107 | 43 | 42 | — | — | 1 | — | — | 114 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | SE 4 | SSW 18 | — | ESE 12 | S 19 | — | — | ESE 11 | ESE 11 | ESE 5 | — | — | — | — | — | — | — | — | — | — |
— | 3 | 60 | — | 14 | 251 | — | — | 12 | 11 | 5 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | N 3 | N 4 | NNW 5 | WSW 10 | NW 4 | NW 5 | SW 14 | SW 15 |
— | 10 | — | — | — | — | — | — | — | — | — | — | — | 5 | 45 | 59 | 528 | 39 | 99 | 7717 | 9818 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 6 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 5 | 0 | 14 | 76 | 78 | 45 | 281 | 490 | 618 | 49 |
Best forecast wave conditions in Mornington Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











