Surf Forecasts:
Wonthaggi surf forecast from 7 Sep 2026:
- Best quality surf: Thursday 10 Sep, 4AM (local time) - 11ft (3.5m), 17s period, SW swell with cross-onshore winds.
- Most powerful swell: Wednesday 9 Sep, 1PM (local time) - 11ft (3.5m), 19s period, SW swell with 9,404 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 4AM (local time) - 5.5ft (1.7m), 12s period with SW 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 Tuesday (Sep 08) at 4AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.9m and 19s. 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 19s and forecast to arrive on Wednesday (Sep 09) 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 0.1m 7s period and expected on Monday (Sep 14) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 8th Sep) | 5.5ft (1.7m) 12s |
| Best Surf | 4AM (Thu 10th Sep) | 11ft (3.5m) 17s |
| Most Powerful | 1PM (Wed 9th Sep) | 11ft (3.5m) 19s |
Table - best surf conditions forecast for Wonthaggi over the next 16 days.
The Lowdown
Alright, let me tell you what’s cooking for the next couple of weeks.
Straight away, Monday the 7th of September is a waste. Rain showers and a solid 25 km/h cross-onshore from the SSW, messing everything up. The swell is running 6ft to 7ft from the southwest, but it’s short-period and choppy – no thanks. The combined wave energy is 624, which is moderate, but the wind kills it.
We get a little hope Tuesday the 8th. The swell drops to about 5ft in the morning, wind shifts west at 15 km/h, still cross-onshore. The period jumps to 13 seconds though (groundswell), and energy is strong at 1351. Still just marginal. Tuesday afternoon looks better – wind drops to 10 km/h and goes directly offshore, with a 4ft SW groundswell at 17 seconds. That very long period with light offshore wind could make Wonthaggi clean, but it’s inconsistent and for experts only. Sneaky session if the tide behaves.
Wednesday the 9th is a mess – 12ft of raw SW swell with nasty 30 km/h cross-onshore winds. Energy is 7676 – very strong wave energy, but the wind is destroying it. Only for the brave, and honestly, this looks more fun for kite surfing than paddling.
Thursday the 10th still big at 10ft in the morning, period 16 seconds, but the wind is finally offshore from the SW at 15 km/h. Energy very strong at 4959. Marginal, but better.
Friday the 11th starts showing promise. Morning is clean with WSW offshore wind at 10 km/h, 6ft SW swell, 15-second period – decent groundswell. Energy 1562, moderate to strong. First real window.
The big standout? Saturday the 12th of September. Afternoon is glassy – wind just 5 km/h from the west, flat calm. Swell is 6ft from the SW, period 15 seconds – good groundswell. Energy 1417. For this inconsistent spot, that’s rare. Clean, not too big, and it’s the best wave of the first week.
Sunday the 13th gets messy again with 25 km/h cross-shore winds. Monday the 14th is even worse – 40 km/h winds. The second week has some spikey swells but usually poor conditions. The next real standout is Tuesday the 22nd of September – morning session. Clean conditions, light cross-offshore breeze from the north at 10 km/h. Swell is 8ft from the SW, period 15 seconds, energy strong at 3178. That’s a proper groundswell and clean – excellent for experienced surfers. That’s the pick of the second week, but it’s far out, so stay tuned.
Water temp is about 57°F, which is a touch warmer than usual for this time of year – not bad.
So bottom line: if you want a wave, Saturday the 12th afternoon is your window – glassy and clean. The other real chance is Tuesday the 22nd morning, but that’s a long way off.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon morning. Very mild (max 12°C on Mon morning, min 8°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SW by Tue night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat afternoon, min 9°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
AM | PM | 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 7 | SW 8 | SW 9 | SW 13 | SW 17 | SW 16 | SW 16 | SW 18 | SW 18 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | WSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 286 | 531 | 388 | 723 | 874 | 1449 | 5048 | 8265 | 7812 | 4959 | 3664 | 2553 | 1542 | 1669 | 2269 | 1761 | 1417 | 1088 | 795 | 720 | 649 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-off | cross | glassy | cross-off | cross | cross | cross |
High Tide | 6:28PM2.11m | 7:57AM2.05m | 7:31PM2.01m | 9:06AM1.99m | 8:48PM1.93m | 10:17AM1.99m | 10:15PM1.93m | 11:22AM2.04m | 11:35PM2.00m | 12:16PM2.11m | 00:41AM2.12m | 1:03PM2.17m | 1:37AM2.22m | ||||||||
Low Tide | 12:42PM0.90m | 1:12AM0.22m | 1:44PM0.97m | 2:18AM0.34m | 3:00PM0.98m | 3:31AM0.44m | 4:20PM0.90m | 4:47AM0.50m | 5:31PM0.74m | 5:55AM0.51m | 6:30PM0.56m | 6:53AM0.51m | 7:19PM0.38m | ||||||||
 |  |  | |  |  | | | | |  |  | | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — |
mm | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 11 | 10 | 11 | 11 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 16 | 19 | 17 | 19 | 20 | 17 |
Feels °C | 6 | 5 | 7 | 8 | 8 | 5 | 4 | 3 | 6 | 7 | 8 | 9 | 8 | 8 | 9 | 12 | 17 | 15 | 14 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 13 | SW 9 | SW 13 | SW 13 | SW 16 | SW 20 | — | SW 18 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | WSW 16 |
| kJ | 265 | 70 | 388 | 723 | 679 | 1449 | 1448 | — | 7812 | 4959 | 3664 | 2553 | 1542 | 1669 | 2269 | 1761 | 1417 | 1088 | 795 | 720 | 649 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 21 | SW 14 | SW 18 | SW 17 | SW 26 | SW 20 | — | — | — | — | — | SSW 5 | — | — | — | — | — | — | — | WSW 7 |
| kJ | 55 | 71 | 264 | 628 | 874 | 26 | 1180 | — | — | — | — | — | 20 | — | — | — | — | — | — | — | 15 |
Swell 3 Height (m) Direction Period (s) | SW 22 | WSW 21 | SW 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 18 | 44 | 312 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 8 | — | — | WSW 4 | WSW 7 | SW 16 | SW 18 | SW 18 | — | — | SSW 5 | — | S 4 | — | — | — | NW 3 | NW 4 | NW 4 | NNW 4 |
| kJ | 286 | 531 | — | — | 23 | 367 | 5048 | 8265 | 6153 | — | — | 40 | — | 10 | — | — | — | 3 | 22 | 26 | 38 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 93 | 93 | 34 | 11 | 30 | 424 | 553 | 1085 | 424 | 93 | 35 | 16 | 16 | 34 | 7 | 7 | 7 | 7 | 94 | 94 | 94 |
Best forecast wave conditions in East Coast of Victoria | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.
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