Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 12 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castelejo sea temperature is
19.5° C
2.1° 

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


Castelejo surf forecast from 20 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 10AM (local time) - 5ft (1.5m), 12s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Sunday 23 Aug, 1PM (local time) - 5.5ft (1.7m), 11s period, WNW swell with 698 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 7AM (local time) - 1.5ft (0.5m), 9s period with WNW 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 Thursday (Aug 20) at 7AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m and 6s. 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 11s and forecast to arrive on Sunday (Aug 23) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Thursday (Aug 20) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 20th Aug)1.5ft (0.5m) 9s
Best Surf10AM (Sun 23rd Aug)5ft (1.5m) 12s
Most Powerful 1PM (Sun 23rd Aug)5.5ft (1.7m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it. First up, our only real option on the table is Castelejo, a beach and reef setup that’s exposed to the NW. It’s a very consistent break, but the next week and a half is a real battle with the wind.

We’ve got a big gap of nothing worthwhile until Sunday the 23rd of August. The wind is just too strong and onshore, making a mess of things. The water temperature is about average for the time of year, no big anomaly to report.

Sunday morning the 23rd of August is the standout. Castelejo gets a clean 5ft swell from the WNW with a period of 12 seconds, which is a nice long-period groundswell. The wind is a light cross-offshore from the SSE, and the energy is strong at 665. It’s a bit of a longer period, so it might wall up a bit on the beach section, but it'll be cleaner than anything else we’ve seen. The combined swell energy is strong (665). This is the best on offer, but it’s a one-hit wonder. The Sunday afternoon still looks clean but the wind picks up a bit, and the tide might be a factor.

Monday the 24th of August is messy with a cross-shore wind and a short, choppy 6ft swell. Not great.

Tuesday the 25th of August morning is a weird one – glassy conditions with a tiny 3ft swell from the W and a short period of 7 seconds. The energy is weak (150). It’s surfable if you’re desperate, but it’s just ordinary.

From there, the wind just keeps blowing onshore or cross-onshore, and the swell is either too small or too messy. We get a bit of a clean spell on the 26th of August morning with a tiny 2ft swell and a light cross-offshore wind, but the energy is very weak (74). Not worth the paddle.

The whole second week into the start of September is a write-off. The wind is relentless from the North and NNW, gusting 18-25 mph, and the surf is mostly poor, lumpy, and choppy. There’s a couple of pulses of 5ft to 7ft swell, but with that onshore wind, it’s a kitesurfing show, not a paddling one. The combined energy gets up to 927 at one point, but it’s all blown out.

So, to be honest, the only real window is Sunday morning the 23rd of August. Get it while you can. After that, the forecast looks stubbornly poor for a long stretch. It’s one of those blank runs the area can get, but forecasts can always change.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 22°C on Sun afternoon, min 19°C on Sat night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
0
0
0
0
3
2
2
1
0
1
1
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)
0.5
WNW
9
0.5
WNW
9
1.3
NW
8
1.4
NW
8
0.8
NNW
11
1.8
NW
10
1.3
NNW
10
1.2
NNW
10
0.9
NNW
9
1.5
WNW
12
1.7
WNW
11
1.8
W
10
1.8
W
9
1.6
W
8
1.1
W
8
0.8
NW
8
1
WNW
7
0.9
WNW
7
0.6
NW
7
1.1
NW
7
1.5
NW
8
Wave Graph
Metric surfscale
Energy kJ
47
45
227
223
149
612
320
256
127
616
698
640
509
351
133
77
105
83
42
125
311
Wind (km/h)
10
N
15
NW
35
NNW
25
N
30
NNW
30
NNW
15
N
20
NW
5
NNW
15
SSE
20
SSW
20
SSW
20
SW
20
WSW
10
W
5
NW
15
W
10
WNW
10
SSW
20
WSW
10
NW
Wind State
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
on
cross-off
cross-off
cross-off
cross
cross-on
cross-on
glassy
cross-on
on
cross-off
cross
on
High Tide
8:18AM2.09m
8:54PM1.93m
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
Low Tide
2:28PM0.99m
2:53AM1.08m
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
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
rain showers
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:56
6:58
6:58
7:00
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:20
8:19
8:16
8:15
8:15
8:13
 mm
1
Temp °C
22
22
20
19
20
18
19
20
19
21
22
21
22
22
22
21
21
21
21
22
20
Feels °C
22
21
18
17
16
13
18
18
18
20
22
20
22
22
23
23
21
22
22
22
21
  • 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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