
Surf Forecasts:
Cogumelo surf forecast from 2 Sep 2026:
- Best quality surf: Monday 7 Sep, 4AM (local time) - 2.5ft (0.8m), 14s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 4.5ft (1.4m), 13s period, WNW swell with 659 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 10PM (local time) - 3.5ft (1.0m), 8s 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 Wednesday (Sep 02) at 10PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.2m and 15s. 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 1.4m 13s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Monday (Sep 07) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 2nd Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 4AM (Mon 7th Sep) | 2.5ft (0.8m) 14s |
| Most Powerful | 10AM (Mon 7th Sep) | 4.5ft (1.4m) 13s |
Table - best surf conditions forecast for Cogumelo over the next 16 days.
The Lowdown
G’day, Rusty here, looking at the surf on offer for the next couple of weeks. The opening window is a bit of a mixed bag, but hang tight, because there’s a ripper morning coming up that’s worth clearing the schedule for.
The first real chance to get wet hits on Wednesday morning, the 2nd of September. It’s not huge, with waves around 4ft from the northwest, but the wind is a clean cross-off from the north-northeast at 6 mph. The water is sitting at 68°, which is a bit colder than normal for this time of year, so you’ll want a decent steamer. The combined swell energy is moderate at 214. This is the pick of the early days, but it’s only a small window before the onshores kick in that afternoon.
After that, we hit a long stretch of pretty ordinary surf. Thursday the 3rd has a tiny 3ft NW swell, but the wind is light and cross-off in the morning, making it surfable but very average. Friday through Tuesday the 8th is a write-off – onshore winds, small chop, and poor conditions. You’d be better off doing something else.
Now, the standout. Sunday morning, the 13th of September. This is the one. The swell bumps up to a clean 4ft from the northwest, but the real story is the period – a solid 13 seconds of groundswell, with combined energy pumping at 735. The wind is glassy-light from the northeast at just 3 mph, making it a cross-off that will leave the surface buttery. This is a morning for the intermediate crew at Cogumelo. The northwest direction is right on the money for this spot. Keep in mind, with a 13-second period, the sets will be well-spaced, so the paddle out is easier, but the lulls will be longer.
Monday the 14th also looks promising early, with another glassy morning. Waves are 4ft from the northwest, period of 10 seconds, and combined energy of 284. The wind is dead calm from the east-northeast. It’s a solid follow-up session, but not quite as potent as the Sunday morning.
The second week fades out. The rest of the 14th, the 15th, and 16th see onshore winds and lumpy conditions, with a few half-chances that are more frustration than fun. The 17th is small and weak.
The standout is Sunday the 13th – that’s your session. Otherwise, the Wednesday morning the 2nd is your best early bet, and Monday the 14th morning is a worthy backup.
Rusty.
Short Range ForecastMostly dry. Warm (max 38°C on Thu afternoon, min 20°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Sat morning, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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) | NW 8 | NW 8 | NW 6 | NW 7 | NW 7 | WNW 8 | WNW 8 | NW 8 | NW 9 | NW 9 | WNW 9 | WNW 9 | NW 12 | NW 9 | NW 6 | WNW 13 | WNW 12 | NW 11 | NW 10 | NW 9 | NW 8 |
Wave Graph | |||||||||||||||||||||
184 | 149 | 47 | 60 | 48 | 64 | 46 | 69 | 83 | 115 | 138 | 145 | 209 | 185 | 128 | 659 | 545 | 347 | 456 | 351 | 398 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | on | glassy | cross-on | cross-on | glassy | cross | on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 6:32PM2.54m | 6:58AM2.44m | 7:27PM2.32m | 7:59AM2.28m | 8:42PM2.13m | 9:24AM2.19m | 10:21PM2.06m | 10:59AM2.25m | 11:51PM2.17m | 12:16PM2.46m | 00:57AM2.37m | 1:15PM2.71m | 1:48AM2.58m | ||||||||
Low Tide | 12:15PM0.41m | 00:40AM0.49m | 1:06PM0.58m | 1:34AM0.70m | 2:16PM0.76m | 2:50AM0.87m | 3:53PM0.83m | 4:31AM0.91m | 5:33PM0.72m | 5:58AM0.77m | 6:45PM0.49m | 7:00AM0.55m | 7:39PM0.26m | ||||||||
7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | |
— | 8:02 | — | — | 8:01 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:55 | — | — | 7:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 26 | 37 | 38 | 28 | 32 | 32 | 34 | 32 | 26 | 21 | 26 | 25 | 22 | 26 | 26 | 20 | 23 | 22 | 20 |
Feels °C | 26 | 24 | 25 | 35 | 36 | 28 | 31 | 32 | 32 | 30 | 25 | 23 | 25 | 23 | 22 | 24 | 23 | 17 | 20 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | NW 8 | SSW 15 | NW 6 | NW 7 | NW 7 | WNW 8 | WNW 8 | SW 13 | NW 5 | NW 9 | WNW 9 | WNW 9 | NW 12 | NW 11 | NW 11 | WNW 13 | WNW 12 | NW 11 | NW 10 | — | — |
184 | 23 | 47 | 60 | 48 | 64 | 46 | 7 | 28 | 115 | 138 | 145 | 209 | 185 | 115 | 659 | 545 | 347 | 456 | — | — | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | — | NW 7 | WNW 9 | SW 14 | NNW 6 | NW 6 | NW 8 | NW 9 | SW 12 | NW 16 | NW 14 | NW 9 | S 11 | WNW 15 | NW 6 | — | — | — | — | — |
21 | — | 44 | 8 | 8 | 14 | 9 | 3 | 83 | 6 | 10 | 91 | 112 | 2 | 88 | 85 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | SSW 14 | SW 14 | SE 7 | SW 14 | SW 13 | NW 8 | SW 13 | — | S 12 | NNW 11 | S 12 | — | WNW 9 | NNW 10 | — | — | — | — | — |
9 | — | 20 | 8 | 2 | 7 | 7 | 3 | 7 | — | 3 | 12 | 3 | — | 32 | 38 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NW 8 | — | — | — | — | — | NW 8 | ENE 2 | SW 2 | — | — | — | NW 9 | NW 6 | — | NW 6 | NW 7 | — | NW 9 | NW 8 |
— | 149 | — | — | — | — | — | 69 | 1 | 1 | — | — | — | 182 | 128 | — | 138 | 210 | — | 351 | 398 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 77 | 0 | 0 | 56 | 0 | 11 | 11 | 0 | 11 | 70 | 9 | 9 | 122 | 9 | 9 | 707 | 9 | 85 | 645 | 85 |
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.










