Surf Forecasts:
Wonthaggi surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 13 Sep, 7PM (local time) - 4ft (1.2m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 10PM (local time) - 13ft (4.0m), 14s period, SW swell with 5,861 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7PM (local time) - 4ft (1.2m), 15s 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 Sunday (Sep 13) at 7PM. The primary swell is predicted to be 1.2m and 15s period with a secondary swell of 0.6m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Wonthaggi in the next 16 days are 4.0m 14s and forecast to arrive on Tuesday (Sep 15) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Sep 14) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 13th Sep) | 4ft (1.2m) 15s |
| Best Surf | 7PM (Sun 13th Sep) | 4ft (1.2m) 15s |
| Most Powerful | 10PM (Tue 15th Sep) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Wonthaggi over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about what’s coming up for Wonthaggi over the next couple of weeks. It’s a real mixed run – plenty of swell, but the wind is gonna be the main character for a while. There’s a bit of a wait before we get anything decent.
The first few days are pretty average. Sunday the 13th has a 5ft SW swell (768 combined energy) but with a cross breeze, it’s only marginal. Monday the 14th drops right off to under 3ft and the wind turns onshore – forget it. Then Tuesday the 15th sees the swell jump to 8ft in the morning and 12ft in the arvo, but with rain showers and strong onshore wind (35 km/h from the SW), it’s a total mess. The wave energy is moderate at best on Tuesday morning (1120) but jumps to strong in the afternoon (3611) – doesn’t matter when it’s blown out. Wednesday the 16th stays big with 10ft SW swell (3883 combined energy) but still cross-onshore. Thursday the 17th drops a bit to 7ft, but the wind is still on. Not much to get excited about.
We finally get a proper window on Monday the 21st of September. Morning sees a 8ft SW groundswell (2288 combined energy) with light easterly offshore wind – clean as a whistle. This is for experienced surfers only, as 8ft is pushing it for most. The swell period is 13 seconds, so there’s good energy and shape, but it’ll be a handful. Crowds are possible at Wonthaggi, so keep an eye out. Afternoon stays solid at 8ft but the wind swings cross-on, so the morning is the clear winner here.
Another standout pops up on Wednesday the 23rd of September. Morning has a 7ft SW groundswell (2149 combined energy) with a light ESE cross-off breeze – clean again. This is excellent for experienced crew, with a 15-second period meaning long, powerful sets. The afternoon is a touch smaller at 7ft but still clean with a cross-off.
Friday the 25th is worth a look too. Morning brings a 5ft SW swell (1216 combined energy) with a light ENE offshore – gentle and clean, perfect for a wider range of surfers. The afternoon picks up to 6ft (1452 combined energy) with a cross-off and remains clean. Good consistent options.
The second week gets a bit wild. Saturday the 26th has a 12ft S swell (3301 combined energy) but it’s too big for Wonthaggi and the wind is cross. Sunday the 27th is similar with 12ft SW, again too big and onshore. By Monday the 28th it drops back to 6ft with a cross breeze – marginal but surfable.
Best of the bunch? Monday the 21st morning for the big, clean groundswell, and Wednesday the 23rd morning for another quality session with that long-period SW. Friday the 25th is a solid all-rounder for those after something a bit smaller.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Warm (max 23°C on Sun afternoon, min 10°C on Tue afternoon). Winds increasing (light winds from the NNE on Sun afternoon, fresh winds from the SSW by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat morning, min 8°C on Thu night). Mainly fresh winds. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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) | WSW 15 | SW 15 | WSW 14 | SW 13 | WSW 6 | WSW 8 | WSW 13 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 18 | SW 16 | SW 14 | WSW 14 | WSW 13 | WSW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 780 | 489 | 318 | 257 | 135 | 1043 | 4041 | 5323 | 3991 | 3444 | 2830 | 1752 | 947 | 711 | 1802 | 1759 | 1340 | 1005 | 862 | 1108 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-on | cross | cross | cross | cross |
High Tide | 1:37AM2.22m | 1:46PM2.22m | 2:24AM2.30m | 2:24PM2.24m | 3:07AM2.33m | 3:01PM2.24m | 3:46AM2.31m | 3:36PM2.20m | 4:24AM2.25m | 4:09PM2.15m | 5:00AM2.17m | 4:42PM2.08m | ||||||||
Low Tide | 7:19PM0.38m | 7:43AM0.52m | 8:03PM0.25m | 8:27AM0.53m | 8:43PM0.18m | 9:07AM0.56m | 9:21PM0.16m | 9:44AM0.62m | 9:57PM0.18m | 10:19AM0.68m | 10:33PM0.24m | 10:54AM0.77m | 11:08PM0.33m | |||||||
 |  | | |  |  | | | |  | | |  | | | | | | |  | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — |
 | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — |
mm | — | — | — | — | 1 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 20 | 15 | 15 | 15 | 11 | 11 | 10 | 11 | 11 | 11 | 9 | 10 | 10 | 15 | 19 | 15 | 21 | 22 | 18 |
Feels °C | 19 | 17 | 13 | 12 | 12 | 4 | 2 | 1 | 5 | 5 | 6 | 5 | 6 | 6 | 9 | 14 | 9 | 15 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | SW 15 | WSW 14 | SW 13 | WSW 13 | WSW 16 | — | — | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 18 | SW 16 | SW 14 | WSW 14 | WSW 13 | WSW 12 |
| kJ | 780 | 489 | 318 | 257 | 108 | 149 | — | — | 3991 | 3444 | 2830 | 1752 | 947 | 711 | 1802 | 1759 | 1340 | 1005 | 862 | 1108 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 20 | WSW 19 | SW 18 | WSW 13 | — | — | — | — | — | — | — | SW 22 | — | — | — | — | W 20 | — |
| kJ | — | — | 15 | 36 | 79 | 17 | — | — | — | — | — | — | — | 19 | — | — | — | — | 8 | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 20 | — | — | — | — | — | — | — | — | — | — | SW 22 | — | — | — | — | — | — |
| kJ | — | — | 8 | — | — | — | — | — | — | — | — | — | — | 18 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NNW 3 | WNW 4 | WSW 4 | WSW 6 | WSW 8 | WSW 13 | SW 14 | SW 14 | SW 15 | SSW 6 | SSW 5 | SW 5 | SW 6 | WNW 4 | NW 4 | NW 4 | NW 5 | NW 5 | WSW 12 |
| kJ | 17 | 3 | 12 | 15 | 135 | 1043 | 4041 | 5323 | 3137 | 2821 | 118 | 46 | 48 | 89 | 40 | 14 | 26 | 77 | 110 | 905 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 11 | 7 | 16 | 35 | 117 | 424 | 779 | 253 | 296 | 93 | 35 | 35 | 117 | 7 | 11 | 41 | 94 | 102 | 11 |
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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