Cogumelo surfForecast / Alentejo / Portugal

information circle12 Day Weather and Surf, issued 5 am Wednesday 17 Dec 2025 WET
Forecast update in hr  min  s Forecast update imminent
Cogumelo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cogumelo sea temperature is
16.3° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Cogumelo this week:

The surf forecast for Cogumelo over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 17) at 12PM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cogumelo in the next 12 days are 4.5m 20s and forecast to arrive on Thursday (Dec 18) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+)12PM (Wed 17th Dec)10ft (3.0m) 13s
Best Surf12PM (Wed 17th Dec)10ft (3.0m) 13s
Most Powerful 3PM (Thu 18th Dec)15ft (4.5m) 20s

Table - best surf conditions forecast for Cogumelo over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 9mm), mostly falling on Thu night. Very mild (max 16°C on Thu afternoon, min 10°C on Wed morning). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Sat night. Very mild (max 16°C on Mon morning, min 12°C on Sat morning). Winds increasing (light winds from the W on Sat morning, fresh winds from the W by Mon morning).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
!
4
7
!
!
!
!
!
!
0
0
0
0
0
!
0
!
0
!
0
Swell
Height Map
Wave Height (m) & direction (?)
3.5
NW
3
WNW
2.4
WNW
2.2
NW
4.5
WNW
4.5
WNW
4.5
WNW
4.5
NW
4
NW
3.5
NW
3
NW
3
NW
4.5
WNW
4.5
NW
5
NW
5.5
NW
5
NW
4
NW
3
NW
3
WNW
3.5
WNW
Period(s) (?)141313232017161617161514151516161614131211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)429430561828489716645121709391905696526265458540108443100841367215494119296428304923932842
Wind
(km/h)
10
NNE
10
N
5
E
10
SSE
15
SSW
15
S
20
N
20
N
15
NNW
10
W
25
WSW
20
W
25
W
25
W
25
W
30
WSW
30
W
15
SW
30
SW
15
W
25
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crossoffcross-
off
cross-
on
crosscrosscrosscrossononononononononcross-
on
cross-
on
oncross-
on
High Tide
/ height (m)
12:47PM
2.33
1:06AM
2.49
1:27PM
2.39
1:43AM
2.57
2:04PM
2.44
2:19AM
2.64
2:40PM
2.46
2:54AM
2.67
3:15PM
2.46
3:30AM
2.69
3:50PM
2.43
4:05AM
2.67
4:26PM
2.38
Low Tide
/ height (m)
6:50PM
0.60
7:17AM
0.54
7:26PM
0.54
7:54AM
0.46
8:02PM
0.49
8:30AM
0.41
8:37PM
0.45
9:06AM
0.39
9:11PM
0.44
9:42AM
0.40
9:46PM
0.45
10:19AM
0.43
10:22PM
0.49
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise7:43--7:43--7:45--7:45--7:46--7:46--7:47--
Sunset-5:17--5:17--5:17--5:19--5:19--5:20--5:20-
clear
part cloud
part cloud
clear
part cloud
mod rain
rain showers
part cloud
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
light rain
rain showers
rain showers
Rain (mm)
-----81---2963421-4227
Temp. °C141513151614141413141515131314161515161414
Feels °C (?)111312131312109810101298811101311119
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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 12 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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