
Surf Forecasts:
Castelejo surf forecast from 5 Sep 2026:
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 4.5ft (1.4m), 13s period, WNW swell with 604 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 1.4m 13s and forecast to arrive on Monday (Sep 07) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Saturday (Sep 12) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Mon 7th Sep) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be real: the next couple weeks at Castelejo are gonna test your love for the sport, but there’s a proper window hiding in there if you’re keen to wait it out. Water temp’s at 66°, which is a solid 5° colder than usual for the time of year, so grab the thick wetsuit—it’s going to be a cold one.
Right now, the surf is flat and messy. Saturday the 5th is a total washout—small, sloppy, nothing worth paddling out for. Sunday the 6th picks up a little northwest groundswell at 4ft with a 12-second period, but the wind is up and blowing cross-on, so it’s chopped up. That trend sticks around through Monday and Tuesday: more size (up to 5ft), but the north-northwest wind is just too strong, making it lumpy and ugly. From the 5th through the 12th, you’re looking at a solid week of poor conditions. Might as well find something else to do.
There’s a little flicker of hope mid-week, but not enough. Wednesday the 9th sees the swell drop way back, still messy with strong wind. Not worth it. Thursday the 10th actually shows some size—6ft—but it’s short-period and howling, so that’s a pass unless you’re keen on a beating.
The real story, the one worth waiting for, starts on Tuesday the 15th. Morning brings 6ft of northwest swell, but the big change is the wind swinging offshore out of the ESE. That’s clean, lined-up, the kind of morning you skip work for. The afternoon stays good with a cross-offshore breeze. But the standout, the one that’s got me amped, is Wednesday the 16th. That morning delivers 7ft of northwest swell at 9 seconds, light southeast offshore wind, and the combined energy is pumping at 1188. That’s strong, powerful surf. This is the day for experienced surfers. The break is a beach and reef setup, and with that size and direction, it’s got some serious punch. It’s too big for beginners—over that 5ft mark—so leave the soft-top at home. Crowds are only occasional here, so you might actually get a few clean ones to yourself. The afternoon turns a bit more cross-shore, so get out early.
After that, it fades. Thursday the 17th still has some size at 7ft but the wind goes onshore again, making it messy. Friday the 18th drops to 4ft, and the afternoon turns glassy—that’s actually a fun little window with clean conditions on smaller waves. The weekend is small and ordinary, and by Sunday the 20th it’s dribbling out with a strong offshore wind and hardly any swell left.
So here’s the call: the first week is dead. Don’t bother. The window is Tuesday the 15th through Wednesday the 16th, and Wednesday morning is the pick—big, clean, and heavy. It’s still a week and a half out, so don’t book it in stone, but that’s the one to circle. The long-range stuff is promising but less certain, so keep an eye on it. Until then, stay warm and keep the board waxed.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat morning, min 19°C on Mon night). Winds increasing (calm on Sat morning, fresh winds from the NNW by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Tue morning, min 17°C on Wed night). Mainly strong winds. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 9 | NW 9 | NW 14 | NW 12 | NW 12 | WNW 15 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | NW 10 | NW 9 | NW 8 | NW 5 | NW 8 | NW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph | |||||||||||||||||||||
115 | 115 | 208 | 330 | 303 | 331 | 530 | 548 | 401 | 300 | 225 | 118 | 82 | 87 | 516 | 408 | 330 | 429 | 196 | 163 | 250 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 10:17PM2.07m | 10:55AM2.27m | 11:47PM2.19m | 12:12PM2.48m | 00:52AM2.39m | 1:10PM2.73m | 1:43AM2.60m | 1:58PM2.95m | 2:26AM2.77m | 2:40PM3.10m | 3:05AM2.88m | 3:19PM3.15m | 3:42AM2.92m | ||||||||
Low Tide | 3:48PM0.84m | 4:26AM0.92m | 5:29PM0.73m | 5:54AM0.77m | 6:41PM0.50m | 6:56AM0.56m | 7:34PM0.26m | 7:44AM0.34m | 8:18PM0.07m | 8:26AM0.17m | 8:57PM-0.04m | 9:05AM0.07m | 9:33PM-0.07m | ||||||||
7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | |
— | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 28 | 27 | 30 | 25 | 26 | 25 | 25 | 22 | 20 | 20 | 20 | 19 | 19 | 18 | 20 | 20 | 20 | 22 | 21 | 20 |
Feels °C | 30 | 28 | 24 | 27 | 22 | 22 | 21 | 21 | 18 | 17 | 15 | 17 | 15 | 13 | 11 | 16 | 15 | 15 | 19 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 9 | NW 12 | NW 12 | WNW 15 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | NW 10 | NW 9 | NW 8 | WNW 8 | NNW 13 | NW 8 | W 8 | NNW 11 | NNW 7 | W 7 | NNW 7 |
115 | 115 | 118 | 330 | 303 | 331 | 530 | 548 | 401 | 300 | 225 | 118 | 82 | 13 | 17 | 408 | 5 | 37 | 196 | 4 | 250 | |
Swell 2 Height (m) Direction Period (s) | S 12 | NW 16 | NW 14 | NW 9 | ESE 6 | NW 11 | NNW 10 | NW 10 | ESE 5 | — | — | — | — | — | — | NNW 12 | W 8 | — | NNW 10 | W 7 | W 7 |
3 | 10 | 208 | 126 | 3 | 166 | 65 | 24 | 2 | — | — | — | — | — | — | 57 | 5 | — | 31 | 4 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | S 12 | ESE 6 | ESE 6 | W 19 | WNW 9 | WNW 9 | ESE 5 | — | — | — | — | — | — | — | NW 10 | — | — | — | N 10 | W 11 |
— | 3 | 3 | 4 | 7 | 34 | 31 | 5 | — | — | — | — | — | — | — | 25 | — | — | — | 2 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 8 | NW 6 | NW 7 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NW 5 | NW 5 | NW 8 | — | NNW 8 | NNW 8 | — | NNW 7 | — |
— | — | — | — | 136 | 162 | 153 | 135 | 257 | 106 | 77 | 104 | 22 | 87 | 516 | — | 330 | 429 | — | 163 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 9 | 9 | 9 | 16 | 9 | 65 | 20 | 756 | 77 | 390 | 247 | 65 | 65 | 615 | 317 | 347 | 390 | 77 |
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.










