
Surf Forecasts:
Wonthaggi surf forecast from 4 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 11ft (3.5m), 19s period, WSW swell with cross-shore winds.
- Most powerful swell: Monday 10 Aug, 1PM (local time) - 11ft (3.5m), 18s period, WSW swell with 8,023 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 4PM (local time) - 5.5ft (1.7m), 15s period with WSW swell.
Best Forecast Surf Conditions for Wonthaggi this week:
The surf forecast for Wonthaggi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 4PM. The primary swell is predicted to be 1.7m and 15s period with a secondary swell of 0.9m and 7s. Another secondary swell of 0.6m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Wonthaggi in the next 16 days are 3.5m 18s and forecast to arrive on Monday (Aug 10) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Sunday (Aug 09) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Fri 7th Aug) | 5.5ft (1.7m) 15s |
| Best Surf | 4AM (Wed 12th Aug) | 11ft (3.5m) 19s |
| Most Powerful | 1PM (Mon 10th Aug) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Wonthaggi over the next 16 days.
The Lowdown
Alright, let’s get stuck into it. The next couple of weeks are a bit of a mixed bag around here. There’s a lot of churn and wind in the immediate outlook, and we’re going to have to sit on our hands for a few days before things get properly interesting. The first few days are pretty much a write-off, so don’t be in a rush to get the board out just yet.
The first real option we see is on Friday afternoon the 7th of August. The wind is due to swing offshore and go glassy, and that’s a massive plus. We’ve got a 6ft SW swell rolling in with a 15-second period, and the combined energy is up there at 1506. That’s a solid, moderate pulse of energy, and the cleanliness from the glassy conditions makes it the standout of the first week. It’s a bit bigger, so you’ll want a bit of experience, but the conditions are going to be good. The Wonthaggi break (Bass Coast) is the one to look at here.
The following morning, Saturday the 8th, starts with a bit of cross-off wind and a similar 5ft SW swell, but the energy has dropped a bit to 1170 and the cleanliness isn’t quite as good. It’s rideable, but Friday afternoon is the better bet.
After that we get a couple of rough days. Sunday is blown out, and Monday the 10th of August sees a bump in swell but it’s messy and lumpy. The energy is building to 3370, but the wind is on it and it’s not going to be fun. Monday afternoon sees it get bigger, up to 12ft, but the wind is howling cross-shore and it’s just a mess. We’re looking at a gale on the morning of the 12th, with a huge 12ft swell and 8263 energy, but it’s all cross-shore and blowing like crazy. It’s not a surf day, that’s for sure.
Thursday the 13th of August brings the biggest swell of the period, with a 15ft SW groundswell with a 17-second period and energy at 11143. That’s a serious amount of water moving, but the wind is onshore and it’s just a giant, blown-out lump. There’s no way to surf that cleanly. It calms down a bit on Friday the 14th, but the swell is still too big and the wind is cross-onshore. The data says it’s too big for the break, and I’d agree. It’s not worth the risk.
The first week and a bit are looking pretty grim. We’ve got a long gap of poor conditions from the 9th to the 17th, with only a few marginal windows that are way too big or too windy. It’s a long stretch of nothing.
Now, let’s talk about the standouts. The real gold is at the back end of the forecast. The morning of Tuesday the 18th of August is looking good. We have clear skies, a light cross-offshore wind, and a 4ft SW swell with a 15-second period. The energy is only 1093, so it’s on the moderate side, but the cleanliness is the key. It’s clean surf, and the long period is going to give it some shape. That’s a good, fun day.
But the real pick of the whole run is Tuesday afternoon the 18th. The wind goes glassy, and we’ve got a 5ft SW swell with a 16-second period. The energy is 1057, and the conditions are described as “glassy.” That’s the best word in the surf forecast. It’s cleaner and more lined up than the morning, and that’s the one to get excited about. It’s going to be clean, consistent, and the long period will make it feel like a proper groundswell. That’s the standout.
The following morning, Wednesday the 19th, is also a good option. Light cross-offshore wind, 5ft SW swell with a 14-second period, and clean conditions. The energy is a bit lower at 916, but it’s still a solid morning surf. The afternoon gets a bit more chop in it, so the morning is the call.
So, to be honest, it’s a slow start, a week of waiting, and then a couple of good days at the end. The Tuesday the 18th afternoon is the one to circle. It’s a long way out, so it’s promising but we’ll have to keep an eye on it. The Wednesday morning is also a decent backup. The water temp is about average for this time of year, so no surprises there.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Very mild (max 12°C on Tue night, min 9°C on Wed night). Winds decreasing (fresh winds from the NW on Thu afternoon, calm by Fri afternoon). | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Sun night. Very mild (max 16°C on Sat morning, min 10°C on Fri night). Winds increasing (light winds from the NE on Fri night, near gales from the W by Sun night). | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 10 | SW 20 | SW 19 | SW 13 | SW 12 | SW 16 | SW 18 | WSW 15 | WSW 15 | WSW 14 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | W 7 | WSW 19 | WSW 10 | WSW 16 |
Wave Graph | |||||||||||||||||||
650 | 209 | 175 | 249 | 149 | 198 | 621 | 1056 | 1206 | 763 | 1170 | 1112 | 785 | 586 | 379 | 820 | 2520 | 2039 | 4166 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross | cross | on | cross-on | glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | on | cross-on | cross | cross-on |
High Tide | 4:04AM2.11m | 4:07PM2.26m | 4:47AM2.16m | 4:40PM2.25m | 5:33AM2.19m | 5:16PM2.23m | 6:23AM2.18m | 5:57PM2.19m | 7:18AM2.14m | 6:45PM2.14m | 8:22AM2.09m | 7:42PM2.07m | |||||||
Low Tide | 10:01AM0.56m | 10:30PM0.28m | 10:41AM0.63m | 11:07PM0.19m | 11:23AM0.72m | 11:49PM0.13m | 12:09PM0.83m | 00:37AM0.11m | 1:01PM0.93m | 1:32AM0.13m | 2:02PM1.02m | 2:35AM0.17m | |||||||
— | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | |
— | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | |
mm | 7 | 3 | 2 | 1 | — | 1 | 1 | — | — | — | — | — | 2 | 1 | 2 | 11 | 1 | — | 6 |
Temp °C | 12 | 12 | 12 | 12 | 9 | 11 | 12 | 11 | 11 | 10 | 16 | 16 | 12 | 14 | 12 | 11 | 13 | 12 | 13 |
Feels °C | 8 | 8 | 8 | 8 | 4 | 6 | 6 | 7 | 9 | 7 | 12 | 12 | 8 | 6 | 6 | 2 | 6 | 4 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 21 | SW 20 | SW 14 | SW 13 | SW 12 | SW 16 | SW 18 | WSW 15 | WSW 15 | WSW 14 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | SW 21 | WSW 9 | WSW 17 | WSW 16 |
111 | 186 | 167 | 249 | 149 | 198 | 621 | 1056 | 1206 | 763 | 1170 | 1112 | 785 | 586 | 379 | 640 | 705 | 1644 | 4166 | |
Swell 2 Height (m) Direction Period (s) | SW 21 | SW 14 | SW 19 | SW 18 | WSW 5 | SW 12 | WSW 11 | SSW 6 | SW 7 | WSW 18 | — | — | E 3 | SW 18 | SW 18 | ESE 8 | WSW 19 | — | — |
69 | 48 | 175 | 155 | 14 | 68 | 48 | 51 | 79 | 534 | — | — | 2 | 51 | 83 | 6 | 2520 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | WSW 10 | E 8 | SW 16 | WSW 20 | SE 9 | — | SW 20 | SW 7 | — | — | — | — | W 26 | — | — | — | — |
— | — | 43 | 1 | 127 | 38 | 3 | — | 188 | 21 | — | — | — | — | 13 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 10 | SW 6 | SW 8 | WSW 6 | NW 4 | WNW 5 | WSW 7 | WSW 7 | W 7 | — | NNE 3 | NNW 4 | N 3 | N 4 | NNW 6 | W 7 | NW 6 | WSW 10 | NW 5 |
650 | 209 | 159 | 84 | 10 | 61 | 282 | 86 | 33 | — | 3 | 6 | 7 | 37 | 168 | 820 | 145 | 2039 | 70 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 103 | 107 | 102 | 11 | 11 | 102 | 94 | 11 | 7 | 7 | 7 | 11 | 7 | 60 | 60 | 296 | 102 | 102 | 102 |
Best forecast wave conditions in East Coast of Victoria | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Wonthaggi Surf forecast
The above surf forecast table for Wonthaggi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wonthaggi can be found by selecting the local surf guide option on the grey menu. Our Wonthaggi 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 (Wonthaggi) 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 Wonthaggi 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.
Wonthaggi is 58 km (36 miles) from Cranbourne. If you plan a holiday in East Coast of Victoria, look for hotels and other accommodation in Cranbourne. Cranbourne has rooms for a wide range of budgets as well as car hire and transport links.











