Castelejo Surf Break

Lat Long: 37.10° N 8.95° W

Castelejo Surf Forecast and Surf Report

Issued: 6 pm 09 Sep 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 10 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 1PM (local time) - 2.5ft (0.7m), 14s period, NW swell with glassy winds.
  • Most powerful swell: Thursday 17 Sep, 1AM (local time) - 6.5ft (2.0m), 8s period, NNW swell with 554 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 1PM (local time) - 4ft (1.2m), 7s 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 Friday (Sep 11) at 1PM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 0.4m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Castelejo in the next 16 days are 2.0m 8s and forecast to arrive on Thursday (Sep 17) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 8s period and expected on Sunday (Sep 13) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Fri 11th Sep)4ft (1.2m) 7s
Best Surf 1PM (Sun 13th Sep)2.5ft (0.7m) 14s
Most Powerful 1AM (Thu 17th Sep)6.5ft (2.0m) 8s

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


The Lowdown

Alright, grab a coffee and let’s break down the next couple of weeks at Castelejo. It’s a bit of a mixed bag, but if you’re patient, there’s a gem or two hidden in there.

First up, we’ve got a stretch of pretty average conditions. The water is sitting at 67°, which is a solid 4° colder than usual for this time of year – so you’ll want a thicker suit. The first few days are a write-off for anything decent. From Wednesday the 9th through to Saturday the 12th, it’s choppy, onshore, and messy. Winds are howling from the NNW at 22 mph, and the swell is short-period, weak stuff. The combined energy is low, hovering around 326 to just 76. Not worth paddling out for.

Sunday the 13th shows a glimmer of hope. The morning is still small and marginal, but by the afternoon, things turn glassy. We get a 4ft NW groundswell with a solid 13-second period, pushing the energy up to 470. It’s clean, it’s glassy, and it’s the first real chance for a wave. This is a beginner-friendly spot, so that’s good news.

Monday the 14th morning keeps the clean vibes going with a 4ft NW swell, 12-second period, and light cross-offshore winds from the ESE. Wave energy is still moderate at 427. That morning window is your best bet before the wind swings onshore in the afternoon and kills it.

Then we hit another dry spell. From Tuesday the 15th through to Thursday the 17th, it’s back to strong, lumpy winds and poor conditions. The swell is all over the place, but the wind is the enemy here. Friday the 18th afternoon shows a bit of improvement with a 6ft NW swell and lighter winds, but it’s still marginal.

Now, here’s where we get to the standout window. Saturday the 19th morning is a beauty. Clean waves, 5ft NW swell, and light cross-offshore winds from the ENE. The energy is solid at 496. It’s not huge, but it’s clean and fun. Crowds are “sometimes” an issue here, so early is your friend.

But the real highlight comes on Sunday the 20th in the afternoon. This is a classic. We’ve got a 2ft swell, but it’s a very long-period groundswell from the NW at 19 seconds. That generates a massive 506 energy reading. The wind is offshore from the SE at 16 mph, keeping it clean and lined up. For a beach-and-reef setup like Castelejo, a long-period swell like this can be a bit straight, but with offshore wind, it’ll be epic. This is the pick of the whole forecast.

Moving into Monday the 21st, the swell jumps up to 7ft from the NW with a 14-second period. The energy is pumping at 1851. That’s a big, powerful swell. The morning is clean but marginal, but the afternoon is excellent for experienced surfers. Winds are light and cross-offshore. This is for the crew who know what they’re doing – beginners, stay out of the way.

Tuesday the 22nd is still firing, with 6ft to 5ft NW swells, good energy (980 and 582), and clean conditions all day. Offshore and cross-offshore winds keep the surface smooth. A solid couple of days.

After that, the swell drops off through Wednesday the 23rd and Thursday the 24th. Thursday morning is glassy but tiny, with only 1ft of swell. The energy is weak at 52. It’s a paddle, not a surf.

The standout days: Sunday the 20th afternoon for the classic, clean, long-period lines, and Monday the 21st afternoon for the big, powerful, expert-only waves. Don’t sleep on Saturday the 19th morning for a clean, fun session either.

Keep it salty.

Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Sat morning, min 18°C on Wed night). Winds decreasing (strong winds from the NNW on Wed night, calm by Fri morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Sun morning, min 23°C on Mon afternoon). Wind will be generally light.

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
1
0
0
0
0
0
1
2
1
2
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
2
NNW
8
1.7
NW
8
1.4
NW
8
1.7
NNW
7
1.2
NW
7
1
NW
7
0.7
NW
6
0.8
NNW
6
0.5
WNW
10
0.7
NW
7
0.6
NW
14
1.1
NW
13
1.3
NW
12
1.3
NW
12
1.1
NW
11
0.8
NW
11
0.6
NW
10
0.6
NW
10
1.7
NNW
6
Wave Graph
Metric surfscale
Energy kJ
322
464
362
215
274
151
93
40
51
54
46
167
444
450
427
298
134
74
76
222
Wind (km/h)
35
NNW
40
NNW
25
N
25
NNW
25
N
10
NNE
10
NNW
15
NNE
10
N
10
WNW
10
NNE
10
NE
5
NNW
5
NE
5
ESE
20
WNW
15
N
15
NNW
30
NNW
35
NNW
Wind State
on
cross-on
cross-on
on
cross-on
cross
on
cross-on
cross-on
cross-on
cross-on
cross
glassy
cross
cross-off
on
cross-on
cross-on
on
cross-on
High Tide
2:26AM2.77m
2:40PM3.10m
3:05AM2.88m
3:19PM3.15m
3:42AM2.92m
3:56PM3.11m
4:17AM2.90m
4:32PM2.99m
4:51AM2.81m
5:07PM2.80m
5:24AM2.67m
5:42PM2.56m
Low Tide
8:18PM0.07m
8:26AM0.17m
8:57PM-0.04m
9:05AM0.07m
9:33PM-0.07m
9:42AM0.04m
10:07PM-0.01m
10:17AM0.08m
10:39PM0.11m
10:52AM0.19m
11:10PM0.29m
11:27AM0.36m
11:42PM0.49m
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>
7:13
7:13
7:13
7:15
7:16
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:52
7:50
7:49
7:46
7:45
7:44
 mm
Temp °C
19
18
22
21
20
23
22
23
25
25
25
28
25
25
27
25
26
27
23
19
Feels °C
13
11
19
18
17
24
22
21
23
24
24
27
25
24
26
22
23
23
19
15
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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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