
Surf Forecasts:
Malhão surf forecast from 11 Aug 2026:
- Best quality surf: Thursday 13 Aug, 7AM (local time) - 3ft (0.9m), 10s period, WNW swell with offshore winds.
- Most powerful swell: Saturday 15 Aug, 7PM (local time) - 6.5ft (2.0m), 8s period, NW swell with 558 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 3.5ft (1.0m), 6s period with NW swell.
Best Forecast Surf Conditions for Malhão this week:
The surf forecast for Malhão over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 4AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.5m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Malhão in the next 16 days are 2.0m 8s and forecast to arrive on Saturday (Aug 15) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Thursday (Aug 13) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 7AM (Thu 13th Aug) | 3ft (0.9m) 10s |
| Most Powerful | 7PM (Sat 15th Aug) | 6.5ft (2.0m) 8s |
Table - best surf conditions forecast for Malhão over the next 16 days.
The Lowdown
Alright, let’s get into it.
The next couple of weeks are a real mixed bag, to be honest. There’s some surf to be had, but you’re gonna have to pick your moments and be prepared for the wind to chop things up in the afternoons.
We start off a bit flat. Tuesday the 11th has a little bit of waist-high swell around 2ft, but it’s pretty gutless and the energy is weak (45-49). Nothing doing there. Wednesday the 12th isn’t much better, with a bit more energy (122-125) but still pretty ordinary, just a bit of leftover WNW groundswell. The mornings are gonna be your friend though, with clean conditions under a light N breeze.
The first real standout shows up on Thursday morning, the 13th. There’s a clean 3ft of WNW groundswell with a 10-second period, and the energy is picking up (208). With light N winds and a cross-offshore, Malhão (Algarve) is going to be looking fun and lined up. That’s your window before the sea breeze kicks in and messes it up.
Friday the 14th morning is even better. The swell builds to a solid 4ft from the NW, with a 9-second period, and the energy is really starting to hum (307). Light offshore flow again will have it looking clean and powerful. This is shaping up to be the pick of the week. The afternoon, however, gets blown out with a 25 km/h cross-shore, so get your fill early.
The weekend sees a bit more size but the quality drops. Saturday the 15th morning has 5ft of NW swell, but it’s a shorter 8-second period, and the forecast is marginal. It’ll be lumpy. Sunday the 16th is similar, with a cross-shore wind setting in and making things messy. It’s not a write-off, but you’ll be working for it.
Monday the 17th has a 4ft NW swell but the wind is up again in the afternoon, and it’s looking a bit all over the place. The conditions are clean in the morning though, so there’s potential for some fun ones before it gets ragged.
Into the second week, things back off. Tuesday the 18th morning has a clean 4ft of NW swell, but the energy is dropping (221). It’s worth a paddle, but it’s not going to be epic. After that, it goes quiet. The 19th and 20th are small and weak. There’s a tiny bump on Friday the 21st morning, around 3ft, and it’s clean, but the overall energy is low (149).
After that, it’s a bit of a flat spell. The morning of Saturday the 22nd has some small waves with 3ft on offer, but it's not clean or good. Then from the 23rd through to the 26th, it’s mostly small and the winds are up. There’s just no real punch to anything.
So, what’s the call? If you can get out on Thursday morning, the 13th, or Friday morning, the 14th, you’re onto something. Those are the standouts—clean, decent-sized, with some push behind them. Be out there early, because the afternoons across this whole period are going to be a battle with the cross-shore breeze. It’s going to be a case of quality over quantity.
The water is sitting at 68°, which is a bit colder than the average for this time of year, so you might want a slightly thicker suit or a hood.
If you’re a beginner, those Friday waves at 5ft might be pushing it, but the earlier mornings on Thursday and Friday at that 3ft to 4ft range are a bit more manageable.
Rusty out.
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 19°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | NW 7 | NW 5 | WNW 10 | NW 6 | WNW 10 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | NW 9 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | SW 16 |
Wave Graph | |||||||||||||||||||||
35 | 30 | 39 | 46 | 125 | 156 | 163 | 132 | 175 | 307 | 384 | 395 | 349 | 470 | 423 | 408 | 293 | 255 | 238 | 193 | 10 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 2:17PM2.90m | 2:48AM2.73m | 3:04PM3.08m | 3:32AM2.82m | 3:47PM3.18m | 4:14AM2.86m | 4:29PM3.17m | 4:53AM2.82m | 5:09PM3.07m | 5:32AM2.73m | 5:48PM2.88m | 6:10AM2.60m | 6:27PM2.64m | ||||||||
Low Tide | 8:38PM0.09m | 8:48AM0.18m | 9:23PM-0.04m | 9:31AM0.07m | 10:05PM-0.10m | 10:12AM0.04m | 10:44PM-0.06m | 10:51AM0.09m | 11:22PM0.06m | 11:30AM0.20m | 11:58PM0.24m | 12:09PM0.37m | 00:34AM0.46m | ||||||||
6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | |
— | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:30 | — | — | 8:28 | — | — | 8:27 | — | — | 8:25 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 20 | 27 | 25 | 21 | 28 | 26 | 23 | 27 | 25 | 22 | 24 | 23 | 20 | 23 | 23 | 20 | 23 | 23 | 21 |
Feels °C | 24 | 23 | 20 | 26 | 23 | 21 | 26 | 24 | 22 | 26 | 23 | 20 | 22 | 21 | 18 | 23 | 23 | 19 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | NW 7 | WNW 10 | WNW 10 | NW 6 | WNW 10 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | NW 9 | NW 9 | — | S 18 | S 18 | S 16 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 8 |
35 | 19 | 39 | 36 | 125 | 156 | 163 | 132 | 175 | 307 | 118 | — | 6 | 6 | 5 | 408 | 293 | 255 | 238 | 193 | 154 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | NNW 12 | NNW 11 | WNW 9 | NNW 9 | NNW 9 | NW 6 | NW 12 | — | — | — | — | — | — | S 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 16 | SW 16 |
10 | 15 | 11 | 46 | 17 | 8 | 45 | 37 | — | — | — | — | — | — | 5 | 10 | 10 | 8 | 8 | 10 | 10 | |
Swell 3 Height (m) Direction Period (s) | NNW 13 | NNW 9 | NNW 8 | WNW 11 | — | — | NNW 10 | NNW 9 | — | — | — | — | — | — | — | — | — | — | S 18 | — | SW 13 |
17 | 8 | 7 | 40 | — | — | 9 | 8 | — | — | — | — | — | — | — | — | — | — | 6 | — | 7 | |
Wind waves Height (m) Direction Period (s) | NW 5 | NW 5 | NW 6 | — | NW 5 | NW 6 | — | NW 6 | NNW 6 | — | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | — | — | — | — | — | — |
11 | 30 | 77 | — | 38 | 98 | — | 44 | 155 | — | 384 | 395 | 349 | 470 | 423 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 666 | 15 | 0 | 82 | 0 | 0 | 292 | 0 | 0 | 339 | 93 | 93 | 345 | 93 | 88 | 88 | 93 | 456 | 746 | 609 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Malhão Surf forecast
The above surf forecast table for Malhão provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Malhão can be found by selecting the local surf guide option on the grey menu. Our Malhão 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 (Malhão) 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 Malhão 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.
Malhão is 20 km (12 miles) from Sines. If you plan a holiday in Portugal - Alentejo, look for hotels and other accommodation in Sines. Sines has rooms for a wide range of budgets as well as car hire and transport links.











