Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 6 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Castelejo sea temperature is
19.6° C
1.8° 

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


Castelejo surf forecast from 8 Aug 2026:

  • Most powerful swell: Saturday 15 Aug, 1PM (local time) - 5ft (1.5m), 9s period, NW swell with 326 kJ wave energy.

Best Forecast Surf Conditions for Castelejo this week:

The most powerful waves expected at Castelejo in the next 16 days are 1.5m 9s and forecast to arrive on Saturday (Aug 15) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 18s period and expected on Saturday (Aug 15) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Sat 15th Aug)5ft (1.5m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s get straight into the outlook for Castelejo.

Alright, I gotta be straight with you – the first week and a half of this forecast window is a bit of a write-off for quality surfing. There’s a lot of onshore and cross-onshore winds in the pipeline, mostly from the NNW and NW, with moderate to fresh breezes that are going to leave the surface choppy and messy. The swell is generally small, mostly under 3ft, and the period is short, so it’s not going to have any push. The combined energy is weak, often in the double digits, and the wave comment is consistently "poor surf conditions". The water temperature is running about 67°, which is a bit colder than normal for this time of year.

We do get a bit of a reprieve starting on the morning of Sunday the 16th of August. The wind swings to a light east breeze, becoming cross-offshore, and the conditions clean up. The swell is still only about 4ft from the NW with a period of 9 seconds, but the wave comment says "surfable waves but very ordinary conditions". The energy is moderate (188). It’s small, but it’s clean.

The real standout, and the best window on offer, comes on Monday the 17th of August. The morning is absolute glass – wind from the NNE at only 3 mph. The swell is 4ft from the NW, but that glassy water is going to make it feel a lot better. The combined energy is moderate (159). The afternoon is also glassy, with a 4ft swell from the NNW pushing energy to 194. For a beach and reef setup, that glassy wind is a major positive. This is the best session of the week.

Tuesday the 18th of August morning also offers glassy conditions with a 4ft NW swell, so that’s a solid follow-up session. Things get choppy again by Tuesday afternoon.

Looking further ahead, the energy starts to build. The best surf of the entire forecast period is shaping up for Thursday the 20th of August afternoon and Friday the 21st of August. On Thursday afternoon, the wind is a light S breeze at 9 mph, making it cross-offshore and clean. The swell bumps up to 4ft from the NNW with a period of 8 seconds, and the combined energy jumps to a strong 224. The wave comment says "expect good surf conditions".

Then Friday the 21st of August is the pick of the bunch. The morning has a clean offshore wind from the SE at 9 mph, with a solid 5ft swell from the NNW at a 9-second period. The energy is very strong at 460. The afternoon gets even better – some clouds, a 9 mph SSE wind, and the same 5ft swell from the NNW, but the period stretches to 10 seconds, pushing the energy to a massive 628. The wave comment is "expect very good surf conditions". This is a long-range call, so it’s a promising one, but it’s a bit less certain. If it comes together, it’s the best wave of the run.

After that, the swell backs off quickly into the 22nd and 23rd of August, with winds turning more cross-shore and the energy dropping back to weak levels.

So, to sum it up: the first week and a half is a tough slog. Your best bets are the glassy mornings of Monday the 17th and Tuesday the 18th of August for small but clean waves, and the real standout is the Friday the 21st of August, which has the potential for some very good, clean surf with a much stronger swell.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Sat morning, min 18°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Thu morning, min 19°C on Tue morning). Mainly fresh winds.

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
0
0
0
0
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)
0.4
WNW
9
0.3
WNW
9
0.5
WNW
8
0.9
WNW
8
0.9
WNW
7
1.1
NW
8
0.9
NW
7
1.1
NW
8
1.2
NNW
6
0.9
NW
6
0.9
NW
5
1.2
NNW
6
0.5
WNW
9
0.8
WNW
10
0.9
WNW
9
0.9
WNW
9
0.8
WNW
9
1.6
NNW
7
0.9
WNW
10
1.2
NNW
7
1.3
NW
9
Wave Graph
Metric surfscale
Energy kJ
26
15
32
91
81
129
89
131
84
52
43
84
48
128
141
119
110
225
161
147
281
Wind (km/h)
25
NNW
25
NNW
25
NNW
20
N
25
NW
25
NNW
20
N
30
NNW
30
NNW
25
NNW
30
NNW
30
NNW
25
NNW
30
NNW
30
NNW
25
N
30
NNW
30
NNW
25
N
25
NNW
25
NNW
Wind State
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
High Tide
10:59AM2.28m
11:43PM2.25m
12:16PM2.45m
00:55AM2.41m
1:18PM2.69m
1:53AM2.59m
2:11PM2.93m
2:42AM2.75m
2:58PM3.11m
3:26AM2.85m
3:42PM3.20m
4:08AM2.88m
4:23PM3.20m
Low Tide
5:22PM0.73m
5:54AM0.72m
6:40PM0.53m
7:01AM0.54m
7:41PM0.30m
7:55AM0.35m
8:32PM0.09m
8:42AM0.18m
9:17PM-0.05m
9:25AM0.08m
9:59PM-0.10m
10:06AM0.04m
10:38PM-0.06m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
6:46
6:47
6:48
6:48
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:36
8:35
8:34
8:32
8:30
8:30
8:29
 mm
Temp °C
23
23
21
22
22
20
21
21
20
21
21
19
22
21
20
24
22
20
22
21
19
Feels °C
21
21
21
21
20
18
18
18
17
18
18
16
19
18
17
21
20
17
20
20
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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