Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 12 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castelejo sea temperature is
20.4° C
1.2° 

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


Castelejo surf forecast from 21 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 7AM (local time) - 5ft (1.5m), 13s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 23 Aug, 10AM (local time) - 5.5ft (1.7m), 12s period, WNW swell with 847 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 3ft (0.9m), 9s 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 (Aug 23) at 1AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Castelejo in the next 16 days are 1.7m 12s and forecast to arrive on Sunday (Aug 23) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Thursday (Aug 27) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 23rd Aug)3ft (0.9m) 9s
Best Surf 7AM (Sun 23rd Aug)5ft (1.5m) 13s
Most Powerful10AM (Sun 23rd Aug)5.5ft (1.7m) 12s

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


The Lowdown

Alright folks, Rusty here. Let's just have a look at what's comin' our way. Yeah, it's a bit of a weird one, so stick with me.

For the first few days, we are in a holding pattern. It's pretty grim. We've got a lot of onshore and cross-onshore winds from the north and north-northwest, and the wave energy is low to moderate (between 348 and 442). The swell is short period, so it's just a mess. Honestly, Friday the 21st through to Saturday the 22nd is a write-off for a decent paddle. The water temp is about where you'd expect it for this time of year, nothing wild there.

Now, hold onto your leggies, because the real story is Sunday, the 23rd of August. That morning, the stars align. Castelejo (Castelejo) is your only real standout. The wind swings around to the southeast, blowing offshore at 12 mph, which is a major positive. We're looking at a 6 ft swell coming from the west-northwest with a solid 12-second period, giving it some proper grunt. The combined energy is strong (898). It's a beach and reef set-up, so with that longer period, the waves will have some shape and power, and those offshore winds will keep 'em clean as a whistle. This is the one to circle. The only thing to watch is that it attracts a crowd sometimes, but for quality like this, it's worth it.

The Sunday afternoon session is still a goer, but the wind shifts to a cross-offshore and the energy drops a touch (786). The Monday morning (24th) is a bit of a gamble; we have a cross-offshore wind but the risk of a thunderstorm, and the swell period drops right off, so it'll be a bit ordinary. Tuesday the 25th morning is surfable but very ordinary, with a weak 4 ft swell and low energy (189).

After that, the wheels fall off again. From Wednesday the 26th of August all the way through to Saturday the 5th of September, it's a very long stretch of poor surf. The swell sticks around in the 2 ft to 7 ft range, but it's all short-period, wind-affected junk from the north and northwest, with strong breezes (16-25 mph) making it choppy and lumpy. The wave energy is low to moderate (from 60 up to 880 at its peak, but always with terrible conditions). There's nothing here for paddle surfing, honestly. If you're a kite surfer, a few of those days with that strong cross-onshore wind and some swell might look pretty interesting, but for a surfboard, it's a no-go.

So, to sum it up: the only true standout is Sunday morning, the 23rd of August at Castelejo. The rest of the 16-day window is a long, long gap of poor conditions. It's a tough stretch, but that one Sunday session should be a beauty.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun afternoon, min 18°C on Thu night). Winds decreasing (fresh winds from the NNW on Fri afternoon, calm by Sat night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Warm (max 22°C on Mon morning, min 21°C on Sun night). Winds decreasing (fresh winds from the SSW on Mon morning, light winds from the SSW by Mon night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
0
0
2
3
2
2
0
0
0
1
0
0
0
0
0
0
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)
1.6
NW
8
1.3
NW
7
1.7
NNW
10
1.3
NNW
10
1.2
NNW
10
0.9
NNW
9
1.7
WNW
12
1.8
WNW
11
1.7
W
10
1.7
WSW
9
1.9
WSW
8
1.6
W
8
1.3
W
7
1.1
W
7
0.9
WNW
7
0.9
WNW
6
0.9
WNW
7
1.3
WNW
8
1.3
WNW
9
1.6
NW
9
1.8
NW
9
Wave Graph
Metric surfscale
Energy kJ
276
167
588
320
256
127
847
757
546
442
427
326
178
113
77
55
82
217
247
354
586
Wind (km/h)
25
N
30
NNW
35
NNW
15
NNW
20
NW
5
NW
20
SSE
15
SSW
20
S
30
SSW
30
SSW
15
W
10
SSW
15
W
15
W
15
N
15
NW
15
WNW
15
NW
25
NNW
25
NNW
Wind State
cross-on
on
cross-on
cross-on
on
glassy
off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
cross-on
cross-on
cross-on
on
on
on
on
cross-on
High Tide
9:33AM1.97m
10:25PM1.84m
11:05AM1.98m
11:54PM1.90m
12:19PM2.11m
00:53AM2.05m
1:10PM2.30m
1:36AM2.22m
1:49PM2.49m
2:11AM2.38m
2:24PM2.68m
2:44AM2.53m
2:55PM2.83m
3:15AM2.65m
Low Tide
3:57PM1.09m
4:28AM1.14m
5:38PM1.05m
5:57AM1.05m
6:44PM0.90m
6:53AM0.89m
7:29PM0.72m
7:34AM0.70m
8:05PM0.54m
8:09AM0.53m
8:37PM0.37m
8:41AM0.37m
9:08PM0.23m
clear
clear
clear
clear
clear
clear
part cloud
clear
rain showers
thunderstorm
part cloud
clear
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:58
6:58
7:00
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:19
8:16
8:15
8:15
8:13
8:12
 mm
1
1
1
Temp °C
20
20
18
20
20
19
21
22
21
22
22
22
22
22
22
21
21
21
20
20
19
Feels °C
17
16
13
19
18
18
20
22
21
20
20
23
24
22
23
21
20
20
19
17
16
  • Map Icons:
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  • 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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