Surf Forecasts:
Cogumelo surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 1AM (local time) - 6.5ft (2.0m), 9s period, WNW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 1PM (local time) - 7ft (2.1m), 11s period, WNW swell with 1,094 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 1AM (local time) - 6.5ft (2.0m), 9s 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 Friday (Aug 28) at 1AM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 0.1m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cogumelo in the next 16 days are 2.1m 11s and forecast to arrive on Friday (Aug 28) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Sunday (Aug 30) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 28th Aug) | 6.5ft (2.0m) 9s |
| Best Surf | 1AM (Fri 28th Aug) | 6.5ft (2.0m) 9s |
| Most Powerful | 1PM (Fri 28th Aug) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for Cogumelo over the next 16 days.
The Lowdown
Alright, Rusty here again, breakin’ it down for you in feet and degrees.
Right off the bat, I gotta be straight with you—this is a tough stretch. For the first ten days or so, there’s basically nothing worth getting wet for. The wind is a constant problem, mostly cross or cross-onshore, and it’s blowing moderate to fresh at times. The swell’s not terrible in size, hitting 7ft on the 28th with a combined energy of 937, but the period’s short and the wind just wrecks it. The water temp’s sitting at 69°, which is pretty normal for this time of year, so you won’t freeze, but that’s about the only good news.
You’ll see a bit of hope around the 5th of September. That Saturday morning, the wind goes glassy out of the WNW, and we get a 2ft swell out of the northwest with a period of 9 seconds and a combined energy of 232. It’s small, but clean—that’s your best bet for a fun little session. The following Sunday morning, the 6th, also looks tidy with glassy conditions and a 4ft northwest swell with a longer period of 12 seconds and combined energy of 428. That’s a real groundswell, and for a spot like Cogumelo, which is exposed to the southwest, a northwest swell will wrap in nicely. Long period swells like that are gold on points and reefs, and with glassy wind, it’ll be smooth. But be warned, it’s only 4ft, so don’t expect a big day.
If you’re an experienced surfer, the morning of the 7th of September is worth a look too. Glassy winds again, a 5ft northwest swell with a 10-second period and combined energy of 418. That’s solid, clean, and rideable. The afternoon gets a bit of a cross-onshore breeze, so mornings are the move.
Overall, the real standout is the 6th of September (Sunday morning) for the combo of glassy conditions and that longer-period groundswell. After that, the swell drops off and the wind turns messy again, so don’t sleep on that window. The break itself is fairly consistent, so it’s not a huge surprise to see a blank run—forecasts can change, but for now, mark your calendar for the first Sunday in September.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Warm (max 25°C on Sat morning, min 16°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | W 8 | WNW 8 | WNW 9 | WNW 10 | WNW 11 | NW 10 | NW 9 | NW 9 | NW 6 | NW 8 | NW 8 | NW 10 | NW 9 | NW 9 | NW 6 | NW 9 | NW 9 | NW 7 | NW 8 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 371 | 484 | 576 | 937 | 1037 | 842 | 459 | 351 | 98 | 163 | 227 | 208 | 159 | 135 | 119 | 119 | 376 | 220 | 346 | 346 | 369 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 3:00PM2.81m | 3:20AM2.63m | 3:32PM2.91m | 3:51AM2.72m | 4:03PM2.96m | 4:23AM2.76m | 4:36PM2.95m | 4:56AM2.75m | 5:10PM2.87m | 5:31AM2.70m | 5:48PM2.73m | 6:11AM2.59m | 6:32PM2.54m | ||||||||
Low Tide | 9:13PM0.23m | 9:17AM0.25m | 9:44PM0.13m | 9:49AM0.18m | 10:14PM0.09m | 10:22AM0.15m | 10:46PM0.10m | 10:56AM0.18m | 11:20PM0.17m | 11:33AM0.27m | 11:57PM0.31m | 12:15PM0.41m | 00:40AM0.49m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 8:12 | — | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:02 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 23 | 23 | 20 | 25 | 23 | 21 | 26 | 24 | 22 | 28 | 26 | 22 | 25 | 25 | 19 | 26 | 25 | 21 |
Feels °C | 17 | 17 | 20 | 21 | 20 | 19 | 22 | 20 | 20 | 25 | 22 | 20 | 24 | 22 | 19 | 21 | 21 | 16 | 24 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | S 11 | WNW 8 | WNW 9 | WNW 10 | WNW 11 | NW 10 | NW 9 | — | NW 8 | NW 8 | W 13 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | SW 15 | NW 8 | SSW 15 | SSW 15 | NW 8 |
| kJ | 2 | 484 | 576 | 937 | 1037 | 842 | 459 | — | 80 | 163 | 3 | 208 | 159 | 135 | 119 | 119 | 8 | 82 | 22 | 23 | 369 |
Swell 2 Height (m) Direction Period (s) | — | S 11 | S 11 | — | — | — | — | — | — | — | — | WNW 12 | WNW 11 | SW 16 | WNW 10 | WNW 9 | — | SSW 14 | — | — | SSW 14 |
| kJ | — | 2 | 2 | — | — | — | — | — | — | — | — | 14 | 24 | 10 | 18 | 16 | — | 20 | — | — | 20 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SW 17 | — | SW 16 | SW 15 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 12 | — | 10 | 9 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | — | — | — | NW 3 | — | — | NW 9 | NW 6 | — | NW 8 | NW 6 | NW 6 | NW 5 | NW 6 | NW 5 | NW 9 | NW 7 | NW 8 | NW 8 | — |
| kJ | 371 | — | — | — | 5 | — | — | 351 | 98 | — | 227 | 122 | 47 | 38 | 108 | 60 | 376 | 220 | 346 | 346 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 466 | 73 | 0 | 9 | 118 | 9 | 9 | 547 | 9 | 9 | 547 | 9 | 9 | 695 | 85 | 85 | 85 | 85 | 9 | 298 | 9 |
Best forecast wave conditions in Portugal - Alentejo | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cogumelo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest