Surf Forecasts:
Cogumelo surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 6ft (1.9m), 13s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 7ft (2.2m), 12s period, WNW swell with 1,332 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 6ft (1.9m), 13s period with WNW 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 23) at 4AM. The primary swell is predicted to be 1.9m 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 16 days are 2.2m 12s and forecast to arrive on Sunday (Aug 23) 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 10s period and expected on Saturday (Aug 22) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 6ft (1.9m) 13s |
| Best Surf | 4AM (Sun 23rd Aug) | 6ft (1.9m) 13s |
| Most Powerful | 7AM (Sun 23rd Aug) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Cogumelo over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming for Cogumelo.
To be straight with you, the next week and a half looks pretty damn quiet. There’s a long stretch, more than a week, where the surf just isn’t there or it’s too messy to bother. That first proper window doesn’t open until the morning of Sunday, August 29th.
On that Sunday morning, we’re looking at a 7 ft swell out of the NW, with a 10-second period. The energy in the water is strong (788). The wind is light and cross-shore from the north, which is a real bonus – it should keep the surface glassy. This spot is fairly consistent, and the water temperature is about what you’d expect for the season. That morning is the clear standout, even if the forecast flags it as marginal. For the intermediate surfer, it’s your best chance.
The window closes pretty fast. By Monday the 31st of August, we’re down to a tiny 2 ft NW swell. The only other pulse that gets my attention is the morning of Thursday, September 3rd. A 6 ft NW swell with an 11-second period gives it some longer-period grunt, and the light cross-shore winds are a plus. It’ll have some shape, but you’ll need to pick your moment.
So, keep your eye on Sunday the 29th of August. That’s the one.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun afternoon. Warm (max 25°C on Sun morning, min 15°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Tue morning, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WNW 9 | W 9 | WNW 15 | WNW 12 | WNW 11 | W 9 | WSW 8 | W 9 | W 8 | W 7 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | WNW 8 | NW 9 | NW 8 | NW 8 | NW 8 | NW 9 | NW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 42 | 38 | 461 | 1082 | 656 | 551 | 629 | 791 | 364 | 150 | 121 | 70 | 44 | 75 | 242 | 155 | 244 | 270 | 165 | 194 | 819 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross | cross | cross | cross-on | cross-on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 11:09AM1.97m | 11:58PM1.89m | 12:23PM2.10m | 00:58AM2.03m | 1:14PM2.28m | 1:41AM2.20m | 1:54PM2.47m | 2:16AM2.36m | 2:28PM2.66m | 2:49AM2.51m | 3:00PM2.81m | 3:20AM2.63m | 3:32PM2.91m | 3:51AM2.72m | |||||||
Low Tide | 4:33AM1.13m | 5:42PM1.04m | 6:01AM1.05m | 6:49PM0.89m | 6:58AM0.88m | 7:34PM0.71m | 7:39AM0.70m | 8:10PM0.53m | 8:14AM0.52m | 8:42PM0.37m | 8:46AM0.37m | 9:13PM0.23m | 9:17AM0.25m | 9:44PM0.13m | |||||||
 | |  |  |  |  |  | | | | |  | | | | | | | | | | |
 | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — | — | 8:13 | — | — | 8:12 | — | — | 8:10 | — |
mm | — | — | — | — | 3 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 25 | 24 | 21 | 23 | 23 | 21 | 23 | 23 | 20 | 22 | 23 | 20 | 22 | 21 | 20 | 23 | 22 | 20 |
Feels °C | 20 | 19 | 20 | 22 | 21 | 21 | 21 | 22 | 23 | 22 | 23 | 22 | 22 | 22 | 20 | 20 | 18 | 17 | 18 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NNW 10 | WNW 15 | WNW 12 | WNW 11 | W 9 | N 8 | SW 13 | W 8 | W 7 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | WNW 8 | NW 9 | S 11 | NW 8 | NW 8 | — | NW 11 |
| kJ | 220 | 164 | 461 | 1082 | 656 | 551 | 1 | 6 | 364 | 150 | 121 | 70 | 44 | 75 | 242 | 155 | 2 | 270 | 165 | — | 819 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | W 9 | NNW 9 | NNW 9 | NNW 8 | N 8 | SW 13 | S 13 | SW 12 | SW 12 | SW 12 | W 10 | W 9 | SW 11 | SW 11 | WNW 8 | S 11 | NW 11 | NW 10 | — | — |
| kJ | 42 | 38 | 71 | 15 | 7 | 5 | 7 | 3 | 6 | 6 | 6 | 2 | 2 | 5 | 5 | 107 | 2 | 5 | 51 | — | — |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | W 8 | SW 13 | SW 13 | SW 13 | — | — | — | — | — | SW 12 | NW 10 | — | — | S 11 | — | S 11 | S 10 | — | — |
| kJ | 20 | 20 | 36 | 7 | 7 | 7 | — | — | — | — | — | 6 | 4 | — | — | 2 | — | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | S 3 | SW 6 | SSW 5 | WSW 8 | W 9 | — | — | — | — | — | — | — | — | NW 8 | — | — | NW 9 | — |
| kJ | — | — | — | 5 | 112 | 37 | 629 | 791 | — | — | — | — | — | — | — | — | 244 | — | — | 194 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 542 | 11 | 11 | 192 | 11 | 453 | 141 | 11 | 11 | 409 | 73 | 11 | 409 | 69 | 9 | 275 | 85 | 118 | 85 | 118 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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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