Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 12 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castelejo sea temperature is
19.6° C
2.0° 

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


Castelejo surf forecast from 17 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 7AM (local time) - 4.5ft (1.4m), 8s period, NNW swell with glassy winds.
  • Most powerful swell: Saturday 22 Aug, 7AM (local time) - 5ft (1.6m), 10s period, NNW swell with 480 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 7AM (local time) - 3.5ft (1.1m), 8s period with NW 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 Monday (Aug 17) at 7AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Castelejo in the next 16 days are 1.6m 10s and forecast to arrive on Saturday (Aug 22) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 17) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Mon 17th Aug)3.5ft (1.1m) 8s
Best Surf 7AM (Sun 23rd Aug)4.5ft (1.4m) 8s
Most Powerful 7AM (Sat 22nd Aug)5ft (1.6m) 10s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what the next couple of weeks are serving up for Castelejo.

It's a bit of a mixed bag, to be honest. We've got a real tease right at the start, but then the forecast turns into a bit of a waiting game with a whole lot of ordinary. There’s a big gap in the middle where it’s just not worth paddling out, before a bit of a pulse tries to build right at the very end of the period.

Sunday the 16th is your one true standout, and it’s a cracker. Castelejo is glassy, with a clean 5ft NW swell pushing through. The water’s 67°, which is a solid 4° colder than we normally see this time of year, so you’ll want a decent wetsuit. The wave energy is moderate (320) and it’s a very consistent break. If you can get out there Sunday afternoon, that’s your window. It won't be too big for most, but beginners might find it a touch challenging.

Then, the wheels fall off. Monday the 17th morning through the rest of the week is a story of cross-off breezes and small, inconsistent swells. The best you’ll get is a quick look on Wednesday the 19th morning with a clean 3ft NW swell, but the energy is weak (79). It’s surfable if you’re desperate, but hardly a recommendation.

From Thursday the 21st right through to Sunday the 31st, the wind turns ugly. We’re looking at a solid run of onshore and cross-onshore winds from the NNW, chopping up everything in sight. The swell tries to pick up a few times, like on the Friday the 22nd with a short-period 5ft but it’s ruined by the 16 mph cross-onshore. The energy reading jumps up to moderate (308), but the quality is gone. This is a stretch where the setup looks far better for kite surfing than paddle surfing. We're talking over a week of poor conditions here, so just mark it off.

The only glimmer in the second week is right at the tail end. Monday the 31st and the day before see a 5ft NW swell building, with moderate to strong energy (335 to 367). The problem? It’s still coming with an onshore or cross-onshore wind at 12 mph. You'll get a wave, but it won’t be clean. It’s a long way out, so take that with a grain of salt, but it’s something to watch.

So, the call is simple: hit it on Sunday the 16th, or wait and see if that last week of August shapes up. It’s a lean forecast.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sun night, min 20°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Wed night, min 18°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NNW by Thu night).

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
1
0
0
1
0
1
0
0
0
0
0
0
0
0
0
2
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)
1.2
NW
8
1.2
NNW
8
1
NNW
8
1
NNW
8
1
NNW
8
0.9
NNW
8
0.8
NNW
8
0.7
NNW
8
0.7
NNW
7
0.6
NNW
7
0.5
WNW
9
1.4
NNW
6
1.4
NW
7
1.4
NW
7
1.6
NNW
7
1.5
NNW
10
1.5
NW
9
1.4
NNW
7
1.4
NNW
8
1.4
NNW
8
1.3
NNW
8
Wave Graph
Metric surfscale
Energy kJ
169
171
133
136
140
103
73
51
48
32
44
141
211
217
257
394
342
175
248
254
202
Wind (km/h)
20
SE
15
S
5
S
10
SSW
15
SW
5
SW
15
SE
15
S
5
SW
5
N
20
NW
35
NNW
20
NNW
25
NW
25
NNW
15
NNW
20
NW
15
NNW
5
SSW
30
S
30
WSW
Wind State
off
cross-off
glassy
cross-off
cross
cross
off
cross-off
glassy
cross-on
on
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-off
cross-off
cross-on
High Tide
6:04AM2.62m
6:21PM2.65m
6:42AM2.45m
7:02PM2.39m
7:25AM2.26m
7:49PM2.13m
8:18AM2.09m
8:54PM1.93m
9:33AM1.97m
10:25PM1.84m
11:05AM1.98m
11:54PM1.90m
12:19PM2.11m
00:53AM2.05m
Low Tide
12:02PM0.38m
00:27AM0.46m
12:42PM0.58m
1:05AM0.69m
1:28PM0.80m
1:50AM0.90m
2:28PM0.99m
2:53AM1.08m
3:57PM1.09m
4:28AM1.14m
5:38PM1.05m
5:57AM1.05m
6:44PM0.90m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:54
6:54
6:56
6:56
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:23
8:22
8:21
8:20
8:19
8:16
 mm
1
1
Temp °C
21
21
21
22
22
21
23
23
21
21
21
19
20
20
19
20
20
20
20
21
21
Feels °C
21
21
24
22
21
23
23
24
23
22
20
14
17
17
16
18
18
19
19
18
19
  • 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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