Surf Forecasts:
Supertubos surf forecast from 15 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 2ft (0.6m), 9s period, WNW swell with 62 kJ wave energy.
Best Forecast Surf Conditions for Supertubos this week:
The most powerful waves expected at Supertubos in the next 16 days are 0.6m 9s and forecast to arrive on Thursday (Aug 20) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Saturday (Aug 15) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 20th Aug) | 2ft (0.6m) 9s |
Table - best surf conditions forecast for Supertubos over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’m gonna be straight with you – the next couple of weeks are a tough watch for surf around here. We’ve got a long, dry spell of tiny, weak waves and poor conditions, so don’t get your hopes up for any quick sessions. The good news is, there’s a glimmer of life showing up toward the end of the run, but you’ll need patience.
The first proper surf we see is a tiny pulse on Friday the 14th of August. Supertubos has a 3 ft swell from the WNW, but it’s pretty weak with only 127 units of combined energy. The wind’s a fresh cross-offshore from the NNW at 19 mph, which keeps the surface clean, but the swell is just too small and short-period (9 seconds) to get excited about. It’s a poor session, really.
Then we hit a dead zone. From Saturday the 15th right through to Tuesday the 25th of August, we’re looking at flat to almost flat conditions. Swell heights barely reach 0.3 ft to 2 ft, energy readings are pitifully low (often under 50), and the wind is mostly cross or onshore, with a few glassy mornings but nothing to surf. The water temperature is sitting around 68°F, which is about average for this time of year, so no surprises there.
Things start to stir on Wednesday the 26th of August. The swell picks up to 5 ft from the NW with a period of 12 seconds, and combined energy jumps to 634 – that’s moderate energy. But the wind is a fresh cross-offshore from the NNE at 12 mph, and it’s still only a marginal forecast. Not our best day.
Thursday the 27th of August looks a bit more promising. In the morning, we get 4 ft of NW swell (period 10 seconds, energy 346), with glassy conditions thanks to a light NNE breeze at 3 mph. The break is clean, but the swell’s still a bit short-period and not super consistent. The afternoon holds up with 4 ft swell and a gentle cross-offshore wind, keeping it clean. This is the best we’ve seen in a while, but it’s still only a 2-out-of-10 kind of day.
Now, the standout – and it’s a long way off – is Saturday the 29th of August. The morning brings a solid 7 ft swell from the WNW, with a period of 12 seconds and a massive 1272 units of combined energy. That’s strong wave energy, and it’ll be a proper groundswell. The wind is light from the NW at 6 mph, creating a light cross-shore with small ripples – not glassy, but not terrible. This swell is big enough for experts only, and at Supertubos, which is a beach and reef setup, it could get heavy. The afternoon drops to 6 ft, but the wind shifts to a gentle cross-onshore, making it a bit choppier. If you’re an advanced surfer, keep an eye on the 29th, but remember, it’s nearly two weeks out, so the forecast could change.
Overall, this is a slow period. The first real hope is Thursday the 27th, and the best chance of a proper wave is Saturday the 29th. Hang in there, and check back closer to the day.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Mon morning, min 19°C on Sat night). Winds decreasing (fresh winds from the NNW on Fri night, calm by Sun morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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) | NNW 8 | SW 18 | SW 18 | SW 16 | SW 17 | SW 15 | SW 18 | W 9 | WNW 8 | WNW 8 | SW 16 | WSW 15 | SW 14 | NW 11 | WNW 10 | WNW 9 | WNW 9 | SW 15 | SW 15 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||||
0 | 12 | 12 | 11 | 11 | 9 | 13 | 8 | 11 | 10 | 38 | 21 | 33 | 32 | 52 | 46 | 62 | 34 | 33 | 34 | 29 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:13AM3.45m | 5:28PM3.71m | 5:51AM3.36m | 6:07PM3.54m | 6:29AM3.22m | 6:46PM3.31m | 7:09AM3.05m | 7:28PM3.05m | 7:52AM2.87m | 8:16PM2.79m | 8:45AM2.72m | 9:19PM2.57m | 9:57AM2.61m | 10:46PM2.46m | |||||||
Low Tide | 11:10AM0.65m | 11:42PM0.61m | 11:49AM0.76m | 00:19AM0.79m | 12:28PM0.93m | 00:57AM1.00m | 1:09PM1.13m | 1:36AM1.23m | 1:57PM1.34m | 2:23AM1.44m | 2:59PM1.53m | 3:27AM1.61m | 4:29PM1.62m | ||||||||
6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | — | 8:25 | — | — | 8:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 20 | 27 | 25 | 21 | 29 | 25 | 23 | 25 | 24 | 21 | 25 | 24 | 21 | 22 | 22 | 20 | 20 | 20 | 19 |
Feels °C | 19 | 21 | 18 | 28 | 25 | 21 | 28 | 25 | 25 | 23 | 21 | 22 | 25 | 24 | 22 | 24 | 21 | 18 | 18 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | — | SW 18 | SW 18 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | WNW 10 | WNW 9 | WNW 9 | NNW 13 | SW 15 | SW 15 | SW 14 |
— | 12 | 12 | 602 | 412 | 263 | 385 | 336 | 201 | 238 | 163 | 119 | 64 | 30 | 52 | 46 | 62 | 90 | 33 | 34 | 29 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 16 | SW 17 | SW 15 | SW 15 | W 9 | WNW 8 | WNW 8 | SW 16 | WNW 8 | WNW 8 | NW 11 | SSW 5 | NW 5 | NNW 7 | SW 15 | W 9 | SSW 15 | W 8 |
— | — | — | 11 | 11 | 9 | 9 | 6 | 7 | 6 | 38 | 6 | 6 | 29 | 8 | 7 | 18 | 34 | 6 | 21 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 18 | SW 15 | SW 16 | SW 16 | WNW 8 | WSW 15 | SW 14 | SW 14 | NNW 6 | SSW 4 | NNW 11 | SW 12 | SSW 15 | — | SSW 14 |
— | — | — | — | — | — | 13 | 8 | 11 | 10 | 6 | 21 | 33 | 32 | 12 | 4 | 12 | 6 | 21 | — | 18 | |
Wind waves Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 9 | — | — | — | — | — | — | — | SW 4 | — | SSW 3 | SW 4 | — | — | NW 2 | NNW 9 | NNW 9 | NNW 8 | NNW 8 |
622 | 651 | 934 | — | — | — | — | — | — | — | 13 | — | 2 | 7 | — | — | 1 | 877 | 1076 | 870 | 763 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 526 | 72 | 2 | 179 | 2 | 2 | 408 | 2 | 2 | 366 | 2 | 4 | 251 | 1 | 1 | 259 | 118 | 74 | 360 | 100 |
Best forecast wave conditions in Peniche | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Supertubos Surf forecast
The above surf forecast table for Supertubos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Supertubos can be found by selecting the local surf guide option on the grey menu. Our Supertubos 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 (Supertubos) 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 Supertubos 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.
Supertubos is 2 km (1 miles) from Peniche. If you plan a holiday in Peniche, look for hotels and other accommodation in Peniche. Peniche has rooms for a wide range of budgets as well as car hire and transport links.











