
Surf Forecasts:
Supertubes surf forecast from 6 Aug 2026:
- Best quality surf: Friday 7 Aug, 3AM (local time) - 5.5ft (1.7m), 16s period, SW swell with offshore winds.
- Most powerful swell: Monday 10 Aug, 3AM (local time) - 11ft (3.5m), 17s period, SW swell with 7,747 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 3AM (local time) - 5.5ft (1.7m), 16s period with SW swell.
Best Forecast Surf Conditions for Supertubes this week:
The surf forecast for Supertubes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 3AM. The primary swell is predicted to be 1.7m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Supertubes in the next 16 days are 3.5m 17s and forecast to arrive on Monday (Aug 10) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Aug 11) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 7th Aug) | 5.5ft (1.7m) 16s |
| Best Surf | 3AM (Fri 7th Aug) | 5.5ft (1.7m) 16s |
| Most Powerful | 3AM (Mon 10th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Supertubes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at what’s on the table for the next couple of weeks.
We’ve got a pretty classic setup on the cards for Supertubes. It’s a reef break that’s exposed to the SW, so it needs that big groundswell direction to really fire. The water temp is sitting at 60°F, which is basically normal for this time of year, nothing out of the ordinary.
The first real chance to get amongst it kicks off on Thursday afternoon, the 6th of August. There’s a bit of a SW groundswell running at 5 ft, and the period is a very long 16 seconds. That’s proper energy. The wind is light and cross from the SE at 6 mph, so it’s not going to be glassy clean, but it’s surfable. The combined energy is moderate (1018). It’s not a stand-out session, but it’s a start.
The best window in the near term is Friday afternoon, the 7th of August. The swell drops back to 5 ft from the SW, but the period bumps up to 17 seconds, and the wind swings to a gentle offshore from the NE at 9 mph. That’s clean. That’s what you want. The combined energy is moderate (1158). This is your pick of the first week for a solid session.
Saturday, the 8th of August, starts with a bit of cross-off wind and a 5 ft SW swell, but the afternoon turns to junk with a cross-onshore wind and a choppy mess. Sunday the 9th is a write-off – strong, stormy winds and a big, blown-out 10 ft swell. That’s only for the mad dogs and experts, but even then, the wind is onshore. Not good.
Monday the 10th through Wednesday the 13th is a patchy stretch. There’s a lot of energy in the water, with the combined energy hitting 3455 and 4776 on Monday and Wednesday, but the winds are just too strong or onshore to make it worthwhile. The swell is big (8 ft to 10 ft) and powerful, but it’s messy. You’d be fighting a losing battle.
We get a bit of a reprieve on Saturday morning, the 15th of August. The swell drops to 6 ft from the SW, with a long 16-second period, and we get a gentle cross-off wind from the E at 9 mph. The combined energy is moderate (1654). Conditions are clean. This is a solid look, another good option.
Then, Sunday morning the 16th of August looks like a proper gem. The swell is 4 ft from the SW, period of 15 seconds, and we get a clean, glassy offshore wind from the NE at 9 mph. The combined energy is 799. This is one of the true standouts of the whole forecast. The water will be smooth, the waves will be lined up. Get out there.
The second week has a couple more promising moments. Tuesday morning the 18th of August has a tiny 2 ft swell but with a very long 19-second period and a clean offshore wind. It’s a long-period groundswell, so it will be very straight at a beach break, but at a reef like Supertubes, it should wrap in nicely. The combined energy is 587. Wednesday afternoon the 19th of August sees the swell build back to 6 ft with a 16-second period and a cross-off wind, giving a combined energy of 3036. That’s a lot of power, but it’s a clean option for the confident surfer.
The last few days of the forecast, the 20th and 21st of August, are a bit messy again with onshore winds and rain showers. The surf is there, but the quality drops off.
Summary: The best on offer is Sunday morning, the 16th of August, with clean offshore winds and a solid SW groundswell. The second best is Friday afternoon, the 7th of August, with a gentle offshore and a long-period swell. For the later part of the window, keep an eye on Wednesday afternoon, the 19th of August, for a bigger, powerful swell with clean wind.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sat night. Warm (max 21°C on Fri afternoon, min 10°C on Sat night). Winds increasing (light winds from the WSW on Sat afternoon, near gales from the WSW by Sun morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Tue afternoon. Very mild (max 16°C on Mon afternoon, min 10°C on Tue afternoon). Winds increasing (light winds from the NNW on Mon afternoon, near gales from the SW by Tue night). | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | WSW 14 | WSW 10 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 14 | WSW 7 | SW 18 | SW 17 | SW 18 | SW 17 |
Wave Graph | ||||||||||||||||||||
1014 | 1494 | 1256 | 1158 | 1039 | 1074 | 856 | 2374 | 1662 | 2937 | 4852 | 3455 | 2160 | 1366 | 726 | 618 | 3579 | 4776 | 5152 | 3836 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross-on | cross-on | on | on | cross | cross-on | cross-off | cross-off | cross-on | on | cross-on | on | on |
High Tide | 4:31AM0.85m | 11:17AM0.96m | 2:07AM0.58m | 11:38AM1.14m | 1:00AM0.58m | 12:03PM1.28m | 00:48AM0.63m | 12:27PM1.36m | 00:49AM0.71m | 12:48PM1.38m | 00:57AM0.80m | |||||||||
Low Tide | 8:59PM0.25m | 9:18AM0.74m | 8:14PM0.26m | 7:25PM0.20m | 4:19AM0.56m | 7:12PM0.14m | 5:06AM0.41m | 7:16PM0.11m | 5:37AM0.27m | 7:23PM0.11m | 6:04AM0.16m | 7:30PM0.12m | ||||||||
— | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | |
6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | 1 | 1 | 3 | 1 | — | 8 | 4 | — | — | — | — | — | — | 6 | 4 | — | — | — |
Temp °C | 18 | 17 | 18 | 21 | 17 | 20 | 20 | 15 | 12 | 13 | 14 | 14 | 16 | 15 | 15 | 12 | 13 | 14 | 15 | 14 |
Feels °C | 16 | 12 | 11 | 17 | 11 | 17 | 16 | 10 | -1 | 2 | 7 | 7 | 11 | 10 | 6 | 1 | 3 | 6 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | — | — | — | — | SW 17 | SW 16 | SW 16 | SW 14 | — | — | — | — | — |
1014 | 1494 | 1256 | 1158 | 1039 | 1074 | 856 | — | — | — | — | 3455 | 2160 | 1366 | 726 | — | — | — | — | — | |
Swell 2 Height (m) Direction Period (s) | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | N 4 | N 4 | NW 4 | NNW 2 | WNW 4 | WSW 14 | WSW 10 | SW 13 | SW 18 | — | — | NNW 4 | NW 5 | WSW 7 | SW 18 | SW 17 | SW 18 | SW 17 |
— | — | 19 | 12 | 6 | 1 | 4 | 2374 | 1662 | 2937 | 4852 | — | — | 10 | 54 | 618 | 3579 | 4776 | 5152 | 3836 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 402 | 0 | 565 | 510 | 633 | 565 | 649 | 970 | 1229 | 510 | 510 | 649 | 1149 | 1172 | 1046 | 1229 | 1344 | 1049 |
Best forecast wave conditions in Nullarbor | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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Information about the Supertubes Surf forecast
The above surf forecast table for Supertubes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Supertubes can be found by selecting the local surf guide option on the grey menu. Our Supertubes 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 (Supertubes) 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 Supertubes 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.
Are you planning a holiday in Nullarbor? If you are looking for accommodation near Supertubes, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.











