
Surf Forecasts:
Gunnamatta Beach surf forecast from 21 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 1AM (local time) - 11ft (3.5m), 13s period, SW swell with cross-shore winds.
- Most powerful swell: Friday 24 Jul, 4AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,773 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 7PM (local time) - 4.5ft (1.4m), 11s 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 Sunday (Jul 26) at 7PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.2m and 16s. 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 4.0m 16s and forecast to arrive on Friday (Jul 24) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Monday (Jul 27) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 26th Jul) | 4.5ft (1.4m) 11s |
| Best Surf | 1AM (Tue 28th Jul) | 11ft (3.5m) 13s |
| Most Powerful | 4AM (Fri 24th Jul) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Gunnamatta Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. We've got a mixed bag ahead for the region, with a wild start and a sweet, quiet finish for those who can wait.
The outlook kicks off with a lumpy, wind-blown mess. From Wednesday the 22nd through the rest of the week, we’re looking at a solid pulse of SW groundswell, but the wind is absolutely howling from the west and southwest. It’s cross-on, strong, and messy. The wave energy is massive (over 12,000 in the combined energy reading on Friday morning), but don’t get excited. The surf quality is poor, and the swell is too big and blown out for any kind of fun paddle surfing. The setup at Gunnamatta Beach looks way more interesting for kite surfing than paddle surfing during this period.
We’ll finally see a change on Sunday the 26th. The wind drops, and the swell starts to ease. It’s still marginal, but by Monday afternoon the 27th, we get a clean window. Light NNW winds, a clean cross-off, and clean 5ft of SW swell. The energy is moderate (513), but it’s a nice little pick-up session.
Now, here’s where it gets interesting. Tuesday morning the 28th has a massive 12ft SW groundswell with light, clean cross-off winds. The catch is, the swell is simply too big for this break. The wave energy is over 3,400, and this is a spot for experienced surfers only. The same goes for Wednesday morning the 29th—7ft of long-period SW swell (14 seconds) and clean conditions. The combined energy is 2,428, and it’s labeled as excellent for experienced surfers, but that is a fair call. The long period will make it a bit walled-up at the beach, so it’s more of a reef or point break kind of wave.
The standout for the entire forecast, without a doubt, is Thursday the 30th. The morning is glassy with an ENE breeze, 5ft of SW swell, and very good surf conditions. The energy is moderate (933). It’s clean, it’s manageable, and it’s going to be a beautiful day in the water. The following Friday the 31st brings another solid option with 7ft of very long-period SW swell (18 seconds) and clean cross-off winds. The wave energy is strong (2,885), but again, the long period demands a bit of respect and a good spot to break properly.
After that, the first weekend of August (the 1st and 2nd) looks playful with clean, smaller 4ft to 5ft SW swell. The winds are light and offshore. The water temperature is sitting about average for the time of year, around 59° to 59°F, so a good 4/3 will do.
The second week gets quiet. From Monday the 3rd onwards, the swell drops off, and the wind, while cross-off, is getting strong again. The energy is weak, and the surf is poor. It’s a long gap of several days with no real recommendations. The run ends on Wednesday the 6th with almost no swell.
Stay safe out there, and score that glassy Thursday morning.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Wed afternoon. Very mild (max 13°C on Wed morning, min 9°C on Wed night). Winds increasing (moderate winds from the NW on Tue night, strong winds from the WSW by Thu night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Very mild (max 15°C on Mon afternoon, min 11°C on Fri night). Winds decreasing (strong winds from the WNW on Fri night, light winds from the NNW by Sun afternoon). | ||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 12 | SW 12 | SW 13 | SW 11 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | WSW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 |
Wave Graph | |||||||||||||||||||
449 | 463 | 411 | 1053 | 4222 | 4021 | 7655 | 6304 | 5046 | 3861 | 2831 | 2408 | 1310 | 629 | 515 | 357 | 344 | 506 | 3668 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | cross-on | cross | cross-off | cross-off | cross |
High Tide | 5:18AM1.54m | 5:07PM1.62m | 6:04AM1.48m | 5:40PM1.53m | 6:52AM1.43m | 6:13PM1.44m | 7:43AM1.37m | 6:49PM1.36m | 8:42AM1.33m | 7:32PM1.29m | 9:50AM1.32m | 8:29PM1.23m | |||||||
Low Tide | 10:59PM0.19m | 11:07AM0.52m | 11:39PM0.22m | 11:47AM0.64m | 00:17AM0.26m | 12:29PM0.74m | 00:58AM0.32m | 1:15PM0.83m | 1:43AM0.37m | 2:12PM0.91m | 2:35AM0.41m | 3:25PM0.95m | 3:37AM0.43m | ||||||
— | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | |
— | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | |
mm | — | — | 3 | 4 | 3 | 1 | 2 | — | — | 3 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 12 | 13 | 12 | 11 | 10 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 12 | 13 | 13 | 13 | 12 | 15 | 14 |
Feels °C | 6 | 8 | 6 | 4 | 1 | 1 | 1 | 3 | 3 | 6 | 6 | 6 | 8 | 9 | 11 | 10 | 8 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 13 | SW 14 | SW 14 | SSW 18 | SSW 17 | SW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | — |
449 | 463 | 411 | 428 | 3436 | 32 | 465 | 5912 | 4176 | 3436 | 2331 | 1928 | 1111 | 629 | 515 | 357 | 344 | 506 | — | |
Swell 2 Height (m) Direction Period (s) | E 11 | WSW 15 | E 10 | — | — | — | — | — | — | — | — | — | SW 18 | SW 16 | WSW 16 | SW 16 | SW 15 | S 20 | — |
2 | 21 | 2 | — | — | — | — | — | — | — | — | — | 12 | 11 | 26 | 41 | 76 | 7 | — | |
Swell 3 Height (m) Direction Period (s) | — | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 16 | — | — | — |
— | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 3 | WNW 4 | W 4 | SW 11 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | WSW 13 | SW 12 | SW 12 | SW 11 | NW 3 | — | NNW 2 | N 4 | N 5 | SW 13 |
6 | 15 | 28 | 1053 | 4222 | 4021 | 7655 | 6304 | 5046 | 3861 | 2831 | 2408 | 1310 | 2 | — | 1 | 23 | 61 | 3668 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 37 | 45 | 46 | 49 | 49 | 473 | 49 | 49 | 473 | 46 | 49 | 60 | 17 | 15 | 15 | 5 | 5 | 0 | 14 |
Best forecast wave conditions in Mornington Peninsula | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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.










