Cogumelo Surf Break

Lat Long: 37.70° N 8.80° W

Cogumelo Surf Forecast and Surf Report

Issued: 12 am 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cogumelo sea temperature is
19.8° C
1.4° 

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


Cogumelo surf forecast from 16 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 7AM (local time) - 5.5ft (1.7m), 9s period, NW swell with cross-offshore winds.
  • Most powerful swell: Sunday 16 Aug, 7AM (local time) - 5.5ft (1.7m), 9s period, NW swell with 421 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 7AM (local time) - 5.5ft (1.7m), 9s period with NW swell.

Best Forecast Surf Conditions for Cogumelo this week:

The surf forecast for Cogumelo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 7AM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cogumelo in the next 16 days are 1.7m 9s and forecast to arrive on Sunday (Aug 16) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Monday (Aug 17) at 1PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 16th Aug)5.5ft (1.7m) 9s
Best Surf 7AM (Sun 16th Aug)5.5ft (1.7m) 9s
Most Powerful 7AM (Sun 16th Aug)5.5ft (1.7m) 9s

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


The Lowdown

Alright, let’s break this down. Rusty here, and we’re looking at the same spot, just in feet and Fahrenheit.

The only real highlight in this 16-day window is Cogumelo on Sunday morning, August 16. That morning you’ve got clean surf running about 5ft from the NW with a light offshore breeze, combined energy reading a solid 356. Water temp isn’t anything strange for this time of year. The period is short at 8 seconds, so it’s wind swell, but the conditions are glassy and inviting. It’s a good, fun wave for intermediate surfers, and since crowds at Cogumelo are often a thing, you might have some company, but it’s worth it.

That Sunday afternoon the wind flips onshore and the quality tanks, so don’t bother.

Monday the 17th offers up waist-high leftovers around 4ft with a cross-off wind in the morning – you could surf, but it’s nothing special.

Then from Tuesday the 18th through the rest of the first week, it dies right down – surf around 0.7ft to 2ft and mostly onshore. Not worth the walk.

Toward the end of the third week in August, from the 21st to the 25th, the swell comes back up into the 4ft to 5ft range, but it’s all blown out with cross-onshore winds, making it choppy and messy.

Fast forward to Saturday morning, August 29, and there’s a chance with 5ft NW swell and light cross winds, but the forecast says it’s only marginal. The energy is moderate (301), and it could be rideable if the wind plays nice, but don’t get your hopes up.

Into the final days of August, it’s more of the same – moderate NW swell with fresh cross-onshore winds.

So the call is simple: hit Sunday morning, August 16 at Cogumelo for the best of the 16 days. After that, it’s mostly wind junk or tiny waves until maybe that last Saturday.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Mon afternoon. Warm (max 29°C on Sun morning, min 19°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Wed morning, min 18°C on Thu night). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
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
8
1.1
NW
8
1.1
NW
8
1.1
NW
8
0.2
WNW
8
0.2
SSW
16
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.4
WNW
10
0.5
WNW
9
0.6
NW
8
1.5
NW
7
1.6
NW
8
1.5
NW
8
1.7
NW
8
1.2
NW
9
1
NW
9
0.8
NW
9
Wave Graph
Metric surfscale
Energy kJ
346
244
135
147
145
10
24
22
21
20
19
38
46
57
235
322
304
335
231
155
93
Wind (km/h)
5
E
15
W
5
SE
5
SSE
15
WSW
10
S
10
SW
15
WSW
5
S
5
SSW
15
WSW
5
S
5
SSW
15
W
15
NNW
20
NNW
25
NW
15
N
15
NNW
20
NW
10
NNW
Wind State
off
on
cross-off
cross-off
on
cross
cross-on
cross-on
glassy
glassy
on
glassy
cross-on
on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
High Tide
5:31AM2.74m
5:47PM2.88m
6:09AM2.60m
6:26PM2.64m
6:47AM2.43m
7:07PM2.37m
7:30AM2.25m
7:54PM2.12m
8:22AM2.08m
8:58PM1.92m
9:37AM1.97m
10:30PM1.83m
11:09AM1.97m
11:58PM1.89m
Low Tide
11:29AM0.20m
11:57PM0.24m
12:08PM0.37m
00:33AM0.46m
12:48PM0.57m
1:11AM0.68m
1:34PM0.79m
1:56AM0.90m
2:34PM0.98m
2:59AM1.07m
4:02PM1.08m
4:33AM1.13m
5:42PM1.04m
clear
clear
part cloud
cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:52
6:52
6:52
6:54
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:27
8:25
8:23
8:22
8:22
8:20
8:19
 mm
1
Temp °C
29
25
23
28
24
20
26
25
20
26
25
20
24
24
20
22
22
19
23
22
19
Feels °C
28
24
23
28
24
22
25
24
22
26
26
23
23
23
20
19
19
17
21
20
18
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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 Cogumelo Surf forecast

The above surf forecast table for Cogumelo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cogumelo can be found by selecting the local surf guide option on the grey menu. Our Cogumelo 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 (Cogumelo) 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 Cogumelo 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.

Cogumelo is 29 km (18 miles) from Sines. If you plan a holiday in Portugal - Alentejo, look for hotels and other accommodation in Sines. Sines has rooms for a wide range of budgets as well as car hire and transport links.

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