
Surf Forecasts:
Castelejo surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 10PM (local time) - 6ft (1.8m), 7s period, NNW swell with 306 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 1.8m 7s and forecast to arrive on Thursday (Aug 06) 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 0.1m 12s period and expected on Thursday (Aug 06) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Thu 6th Aug) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you. The next couple of weeks are looking pretty grim for a proper paddle. We've got a solid window of poor surf conditions kicking things off, and it's going to take a while for anything worthwhile to show up.
The first week is basically a write-off. From Tuesday the 4th through to the 13th, it’s all onshore winds, lumpy, choppy surf, and a whole lot of nothing. The swell energy is weak, and the wind is just going to be ruining what little there is. You're looking at a stretch of at least ten days with no real surf on offer. It's a tough run, but it tends not to stay this poor for long.
If you're desperate, the first real chance we see is around the 15th and 16th. The swell actually bumps up a bit to a consistent 6ft from the NW, and the wind finally drops off. It's still cross-shore, so it won't be perfect, but it's the first time it looks like it might be surfable. The period is only 8 seconds, so it's not going to be powerful, but at least it's something. The energy is moderate, with readings like 371 and 390.
Then we get to the real standout of the whole window, and it's on Monday the 17th. The swell pushes up to 7ft to 7ft from the NNW, with the energy jumping right up into the strong range, hitting 522 and 575. This is the biggest, most powerful swell we see. The wind is light cross-onshore, which is a bit of a bummer, but it's manageable. This is the one to keep an eye on. It's a big swell though, so it's not one for the beginners. Once it's over 5ft, it's getting serious, and this is well past that.
After that, the winds pick back up and things get messy again. There's a lot of energy on the 19th, with readings over 900, but it's all wind-blown and onshore, so it's going to be a washout. If you're looking for a silver lining, the setup on the 15th and 17th looks way more interesting for the kite surfers than for us paddle surfers.
The water at Castelejo is sitting at 66°, which is a good couple of degrees colder than normal for this time of year. It's noticeable, so you'll want the thicker suit.
So, to sum it up: endure the flat and messy first week, keep an eye on Saturday the 15th for a small window, but the best bet by far is Monday the 17th. It's a big, powerful swell, but it's the only proper one we get. Don't get too excited about the long range, though; forecasts this far out are always a bit of a gamble.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 18°C on Wed night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 18°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Tue 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | WNW 9 | WNW 8 | WNW 8 | NNW 9 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 5 | NNW 4 | WNW 8 | WNW 7 | NW 7 | NNW 5 | NW 9 | NW 8 | NNW 5 |
Wave Graph | ||||||||||||||||||||
108 | 105 | 84 | 58 | 114 | 132 | 162 | 299 | 138 | 138 | 155 | 55 | 18 | 21 | 29 | 67 | 75 | 20 | 18 | 37 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 6:51PM2.56m | 7:21AM2.38m | 7:43PM2.40m | 8:19AM2.28m | 8:50PM2.25m | 9:34AM2.22m | 10:16PM2.18m | 10:59AM2.28m | 11:43PM2.25m | 12:16PM2.45m | 00:55AM2.41m | 1:18PM2.69m | 1:53AM2.59m | |||||||
Low Tide | 1:04AM0.50m | 1:23PM0.63m | 1:56AM0.64m | 2:26PM0.75m | 3:05AM0.76m | 3:50PM0.81m | 4:30AM0.81m | 5:22PM0.73m | 5:54AM0.72m | 6:40PM0.53m | 7:01AM0.54m | 7:41PM0.30m | ||||||||
— | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — | 6:47 | — | — | |
8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:35 | — | — | 8:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 21 | 21 | 19 | 20 | 20 | 19 | 21 | 21 | 19 | 22 | 22 | 20 | 21 | 21 | 19 | 21 | 21 | 19 |
Feels °C | 21 | 19 | 19 | 18 | 15 | 16 | 16 | 14 | 18 | 18 | 15 | 19 | 19 | 18 | 19 | 18 | 16 | 18 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 7 | NW 11 | W 6 | W 6 | WNW 7 | W 6 |
108 | 105 | 84 | 35 | 36 | 33 | 32 | 30 | 28 | 28 | 26 | 26 | 15 | 21 | 29 | 30 | 28 | 20 | 17 | 20 | |
Swell 2 Height (m) Direction Period (s) | N 8 | NNW 11 | NNW 10 | NNW 9 | WNW 7 | S 12 | — | — | NNW 9 | — | — | — | NNW 8 | N 7 | NNW 12 | — | NW 10 | NW 9 | NW 8 | NW 8 |
1 | 13 | 40 | 58 | 17 | 3 | — | — | 15 | — | — | — | 12 | 4 | 13 | — | 24 | 20 | 18 | 15 | |
Swell 3 Height (m) Direction Period (s) | S 13 | W 11 | WNW 10 | WNW 10 | S 14 | NNW 9 | — | — | — | — | — | — | WNW 6 | NW 13 | N 7 | — | — | W 12 | W 11 | WNW 11 |
3 | 2 | 20 | 33 | 4 | 15 | — | — | — | — | — | — | 3 | 7 | 1 | — | — | 3 | 2 | 11 | |
Wind waves Height (m) Direction Period (s) | — | NW 4 | — | NW 4 | NNW 6 | NNW 6 | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 5 | NNW 4 | NNW 4 | NNW 4 | NW 7 | NNW 5 | NNW 5 | NW 4 | NNW 5 |
— | 10 | — | 12 | 114 | 132 | 162 | 299 | 138 | 138 | 155 | 55 | 18 | 16 | 14 | 67 | 75 | 19 | 18 | 37 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 256 | 327 | 73 | 692 | 92 | 92 | 761 | 342 | 179 | 245 | 179 | 172 | 229 | 468 | 385 | 658 | 76 |
Best forecast wave conditions in The Algarve | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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Information about the Castelejo Surf forecast
The above surf forecast table for Castelejo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castelejo can be found by selecting the local surf guide option on the grey menu. Our Castelejo 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 (Castelejo) 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 Castelejo 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.
Castelejo is 25 km (16 miles) from Lagos. If you plan a holiday in The Algarve, look for hotels and other accommodation in Lagos. Lagos has rooms for a wide range of budgets as well as car hire and transport links.











