Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 12 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Castelejo sea temperature is
18.3°C
3.4° 

Castelejo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Castelejo surf forecast from 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 1PM (local time) - 2.5ft (0.8m), 10s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 19 Sep, 10AM (local time) - 6.5ft (2.0m), 14s period, NW swell with 1,649 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 4AM (local time) - 2.5ft (0.8m), 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 Sunday (Sep 13) at 4AM. The primary swell is predicted to be 0.8m and 8s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Castelejo in the next 16 days are 2.0m 14s and forecast to arrive on Saturday (Sep 19) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Sunday (Sep 13) at 7AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 13th Sep)2.5ft (0.8m) 8s
Best Surf 1PM (Sun 13th Sep)2.5ft (0.8m) 10s
Most Powerful10AM (Sat 19th Sep)6.5ft (2.0m) 14s

Table - best surf conditions forecast for Castelejo over the next 16 days.


The Lowdown

Right, folks, Rusty here. Let’s have a look at what Castelejo’s got cooking over the next couple of weeks. It’s a bit of a mixed bag, but we’ll find the windows.

We’re starting off with a real low point. Saturday the 12th doesn’t offer a single decent wave worth paddling for. The water is sitting at a very unusual 65°, which is over three degrees colder than what’s normal for this time of year – so dig out the thickest wetsuit you’ve got if you’re going in. The swell is a weak, short-period windswell from the NNW at 3 ft with a measly 7-second period, and the wind is junk. It’s a write-off.

There’s a bit of a pulse coming in on Sunday the 13th. The morning sees a clean-ish cross-offshore wind, but the swell is tiny at 2 ft NW, though it does have some nice long-period energy (14 seconds). The combined energy is low (177). The afternoon gets a bit better: 4 ft NW, period 13 seconds, and a light cross-shore wind. It’s not great, but it’s surfable – just very ordinary.

Monday the 14th morning is where we get our first real look. The wind is a clean cross-offshore from the NE, and we’ve got a 4 ft NW swell running with a 12-second period. The combined energy is moderate (332). It’s still small, but the conditions will be clean. The afternoon turns onshore, so catch the morning session.

Tuesday the 15th is a step back, with increasing onshore wind and messy surf. Wednesday the 16th gets a big boost in size, but it’s ugly. The swell jumps to 8 ft NW (8-9 seconds), which is too big and powerful for beginners, but the wind is a strong onshore breeze that will chop it to pieces. That’s a kite-surfing setup if I’ve ever seen one, not one for a paddle board.

Thursday the 17th is still blown out with 8 ft to 7 ft swells and strong cross-onshore winds, just a mess.

Now, Friday the 18th is a standout. We get a clean cross-offshore easterly wind and a 6 ft swell from the NNW with a 10-second period. The combined energy is strong (514). This is the best it’s looked all week. The surf will be solid, clean, and powerful. This is the one to circle.

Saturday the 19th morning is a contender. We get glassy conditions with a 3 ft NW groundswell that has a very long 14-second period. The combined energy is pumping hard (804). That long period will make the waves at Castelejo (Portugal) fat and lined up, perfect for the reef sections. It’s a beautiful, mellow morning for a soul session. The afternoon gets onshore again.

Sunday the 20th afternoon is tidy – a clean 5 ft NW swell (11 seconds) with a nice cross-offshore wind from the ESE.

Now, looking further ahead, Monday the 21st morning is another absolute standout. The wind is a clean cross-offshore from the East, and the swell is a solid 5 ft from the NW with a very long 14-second period. The combined energy is massive (1113). This is expert-level power and size, but for the experienced crew, it’ll be firing with clean lines. The afternoon gets gusty.

After that, the end of the window fades out. Tuesday the 22nd afternoon has a solid offshore wind (SE 12 mph) and a 4 ft NW swell, but by Wednesday and Thursday it drops off to small, weak swells. Friday the 26th and Saturday the 27th offer some small, clean glassy mornings but the swell is barely there.

All in all, the best bets are Friday the 18th for solid, clean power and Monday the 21st for a proper, long-period groundswell that will have the reef working. The glassy Saturday the 14th morning is a lovely, mellow option too. The rest is hit or miss with a lot of onshore wind. The water is unseasonably cold right now, so don’t get caught out without the right rubber.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Sun morning, min 22°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Tue morning, min 17°C on Tue night). Winds increasing (light winds from the NNW on Tue morning, strong winds from the NNW by Wed afternoon).

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
1
1
2
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NNW
7
0.8
NNW
7
0.8
NNW
7
0.6
NW
14
1.1
NW
13
1.3
NW
12
1.1
NW
12
0.9
NW
11
0.8
NW
11
0.6
NW
10
0.5
NW
10
1.9
NW
7
2.5
NW
9
3
NW
9
2.5
NNW
9
2.3
NW
10
1.7
NNW
9
2.3
NW
9
1.9
NW
9
1.7
NNW
9
1.6
NNW
8
Wave Graph
Metric surfscale
Energy kJ
56
64
61
130
380
442
338
202
134
77
46
352
1011
1381
1251
1081
480
899
626
440
360
Wind (km/h)
5
N
5
WNW
5
NE
15
ENE
5
NE
10
NNE
10
NE
15
NW
20
N
20
NNW
30
NNW
40
NNW
45
NNW
45
NNW
40
NNW
30
N
35
NNW
30
N
10
NNE
20
NNW
20
N
Wind State
cross-on
on
cross
cross-off
cross
cross
cross-off
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
3:56PM3.11m
4:17AM2.90m
4:32PM2.99m
4:51AM2.81m
5:07PM2.80m
5:24AM2.67m
5:42PM2.56m
5:58AM2.50m
6:19PM2.31m
6:36AM2.30m
7:02PM2.07m
7:24AM2.10m
8:04PM1.87m
Low Tide
10:07PM-0.01m
10:17AM0.08m
10:39PM0.11m
10:52AM0.19m
11:10PM0.29m
11:27AM0.36m
11:42PM0.49m
12:03PM0.56m
00:16AM0.72m
12:45PM0.78m
00:56AM0.93m
1:40PM0.99m
1:56AM1.12m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:15
7:16
7:16
7:18
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:49
7:46
7:45
7:44
7:42
7:40
7:38
 mm
Temp °C
26
26
25
27
26
24
26
25
25
24
20
18
18
18
19
20
20
19
20
20
19
Feels °C
24
24
25
25
26
23
24
23
23
21
17
13
12
11
15
15
14
15
18
18
17
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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