Surf Forecasts:
Castelejo surf forecast from 8 Sep 2026:
- Best quality surf: Sunday 13 Sep, 7AM (local time) - 4ft (1.2m), 10s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 14 Sep, 1AM (local time) - 4.5ft (1.4m), 12s period, NW swell with 590 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1PM (local time) - 4ft (1.2m), 8s period with NNW swell.
Best Forecast Surf Conditions for Castelejo this week:
The surf forecast for Castelejo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 1PM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.4m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Castelejo in the next 16 days are 1.4m 12s and forecast to arrive on Monday (Sep 14) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Monday (Sep 14) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 12th Sep) | 4ft (1.2m) 8s |
| Best Surf | 7AM (Sun 13th Sep) | 4ft (1.2m) 10s |
| Most Powerful | 1AM (Mon 14th Sep) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright, this is Rusty.
Right now, it's a bit of a wait-and-see for Castelejo. For the first several days, it's not looking good. We're talking Tuesday the 8th right through to Saturday the 12th – the wind is hammering it from the north and northwest, onshore and cross-onshore, making a mess of things. Swell is there, but it's junk. You won't want a bar of it.
The first real glimmer of hope comes on Sunday the 13th. The early session is where it's at. That southeast wind swings offshore, cleaning up a solid 3ft groundswell with a long period of 14 seconds. The combined wave energy is right up there (460), so there's plenty of push, but that offshore breeze is going to make it look pretty. Just keep in mind that's a very consistent, exposed beach and reef set-up, so it won't be empty – expect to share the water as it can get crowded here at times.
Monday the 14th morning is another nice window. Same story with an offshore wind, this time from the ESE at 9 mph, on a 4ft NW swell (12 sec period). It'll be clean again. That's your best bet in the first week.
After that, we get a rough patch through the middle of the week with onshores returning until things clean up again on Friday the 18th. That morning looks like the standout of the whole outlook. The wind goes light and cross-off from the south, putting a real nice face on a 5ft NW groundswell (10 sec period). The energy is strong (516) and the conditions will be good. Could be some proper waves. Saturday the 19th morning is also worth a look with light offshore winds from the SE on a 4ft NW swell.
Towards the very end, on Monday the 21st, there's a tiny little 2ft west swell with a crazy long period of 19 seconds showing up, but it's getting smashed by a 22 mph cross-onshore. That's a no-go. Tuesday the 22nd turns into a big, messy, onshore mess with a 7ft groundswell and brutal 25-28 mph winds. That's for the strong kite crew only, not for a paddle surfer.
So to wrap it up: sit tight until Sunday the 13th and Monday the 14th mornings for a clean, small wave session. The real highlight looks like Friday the 18th morning – that's the one that could actually be memorable. Keep your fingers crossed for that one.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon night, min 17°C on Wed night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat night, min 19°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu night, calm by Sat morning). | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | WNW 11 | WNW 10 | NW 9 | NW 8 | NW 8 | NNW 7 | NW 8 | NW 8 | NNW 7 | NNW 7 | NW 7 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 14 | NW 13 | NW 12 | NW 12 | NW 11 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 300 | 204 | 118 | 82 | 222 | 440 | 388 | 353 | 382 | 191 | 100 | 110 | 221 | 171 | 145 | 231 | 330 | 590 | 455 | 357 | 235 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | off | on | cross-on | off | off | cross-on |
High Tide | 1:10PM2.73m | 1:43AM2.60m | 1:58PM2.95m | 2:26AM2.77m | 2:40PM3.10m | 3:05AM2.88m | 3:19PM3.15m | 3:42AM2.92m | 3:56PM3.11m | 4:17AM2.90m | 4:32PM2.99m | 4:51AM2.81m | 5:07PM2.80m | ||||||||
Low Tide | 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 | 9:42AM0.04m | 10:07PM-0.01m | 10:17AM0.08m | 10:39PM0.11m | 10:52AM0.19m | 11:10PM0.29m | |||||||
 | |  | | |  | | | | | | | | | | | | | | | | |
 | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — |
 | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 20 | 19 | 18 | 21 | 21 | 20 | 21 | 22 | 23 | 24 | 24 | 26 | 25 | 25 | 25 | 27 | 26 | 24 |
Feels °C | 17 | 16 | 19 | 17 | 13 | 12 | 18 | 18 | 14 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 24 | 24 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 10 | NW 9 | NW 8 | N 14 | NW 11 | NW 8 | NNW 12 | NNW 10 | NNW 7 | NW 7 | NW 8 | NW 8 | NNW 8 | NNW 8 | NW 9 | NNW 9 | NW 12 | NW 12 | NW 11 | NW 10 |
| kJ | 300 | 204 | 118 | 82 | 4 | 20 | 388 | 27 | 60 | 191 | 100 | 110 | 221 | 171 | 145 | 203 | 172 | 590 | 455 | 357 | 235 |
Swell 2 Height (m) Direction Period (s) | NNW 9 | — | — | — | — | N 13 | NW 10 | — | — | NNW 10 | NNW 10 | SE 6 | ESE 6 | WNW 10 | WNW 9 | NW 14 | NW 13 | SE 7 | ESE 6 | ESE 6 | ESE 5 |
| kJ | 8 | — | — | — | — | 3 | 25 | — | — | 38 | 31 | 1 | 4 | 52 | 32 | 231 | 330 | 11 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 12 | — | — | — | W 7 | W 7 | — | ESE 6 | NW 16 | WNW 9 | WNW 10 | — | — | — | — |
| kJ | — | — | — | — | — | — | 15 | — | — | — | 4 | 1 | — | 3 | 66 | 26 | 54 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 5 | NW 6 | NNW 4 | NW 8 | NNW 7 | — | NW 8 | NNW 7 | — | — | NNW 7 | — | — | — | — | — | — | — | — | — |
| kJ | 61 | 51 | 95 | 13 | 222 | 440 | — | 353 | 382 | — | — | 93 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 390 | 77 | 390 | 270 | 65 | 46 | 638 | 65 | 9 | 9 | 23 | 9 | 9 | 9 | 0 | 9 | 9 | 0 | 0 | 9 |
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.
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