Surf Forecasts:
Praia do Magoito surf forecast from 18 Aug 2026:
- Most powerful swell: Friday 21 Aug, 10AM (local time) - 3ft (0.9m), 11s period, NW swell with 172 kJ wave energy.
Best Forecast Surf Conditions for Praia do Magoito this week:
The most powerful waves expected at Praia do Magoito in the next 16 days are 0.9m 11s and forecast to arrive on Friday (Aug 21) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Sunday (Aug 23) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Fri 21st Aug) | 3ft (0.9m) 11s |
Table - best surf conditions forecast for Praia do Magoito over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for Praia do Magoito.
Honestly, the next week and a half is looking pretty dismal. We've got a long stretch of poor surf conditions ahead, with hardly anything worth paddling out for. The water temp is sitting at 68°, which is pretty much what you'd expect for this time of year, so that's not the issue.
The first few days, from Tuesday the 18th of August, are a write-off. Tiny, weak swells with messy cross-onshore winds. Forget about it.
We do see a bit of a pulse building around Thursday the 27th of August, with the swell height picking up to 4ft in the morning and climbing to 6ft by the afternoon from the NW. That's a solid size, but it's coming with a 10-second period – decent groundswell – and the energy is moderate to strong (283 in the morning, 583 in the afternoon). The problem is the cross-on wind from the NNW. It's not going to be clean. By Friday the 28th, we're still looking at 5ft NW swell, but the wind is fresh and lumpy, making it a tough session. This whole stretch through to the end of August is just cross-on and choppy.
The one true standout, the only real glimmer of hope, is on Monday the 31st of August. The morning session is the pick. The wind swings to a light NE at 3 mph, turning it glassy. That's a major positive. The swell is a clean 3ft from the WNW with a 10-second period and moderate energy (168). It's a reef break that's exposed to the SW and very consistent, so the shape should be there. The water temp is still normal. Keep in mind, the crowds are "sometimes" here, so you might have a few others out, but for these conditions, it's worth it.
After that, the first of September offers a 5ft NW swell with a short 8-second period in the morning, and a gentle cross-shore wind. It's a marginal call, but it’s there. The following days look like they drop back off into poor conditions.
So, to sum it up: a long, flat and windy run until the 31st of August. That Monday morning is the one to circle. It's not a huge swell, but with glassy conditions and a decent groundswell, it's the best this 16-day window has to offer.
Rusty out.
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 19°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the N by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 18°C on Sat night). Mainly strong winds. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 | SW 16 | SSW 15 | SSW 14 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | W 8 | NW 11 | SSW 14 | SSW 14 | SSW 14 | WNW 9 | SSW 14 | SW 13 | SW 13 | W 8 | SW 13 | SW 13 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 38 | 21 | 20 | 21 | 51 | 62 | 61 | 37 | 172 | 21 | 18 | 20 | 26 | 20 | 7 | 7 | 7 | 7 | 7 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:15PM2.41m | 7:38AM2.29m | 8:02PM2.15m | 8:31AM2.12m | 9:06PM1.95m | 9:45AM2.00m | 10:37PM1.86m | 11:17AM2.00m | 00:06AM1.92m | 12:31PM2.13m | 1:06AM2.06m | 1:23PM2.31m | 1:49AM2.23m | ||||||||
Low Tide | 12:58PM0.58m | 1:20AM0.68m | 1:44PM0.79m | 2:05AM0.90m | 2:43PM0.99m | 3:08AM1.08m | 4:12PM1.09m | 4:42AM1.14m | 5:51PM1.05m | 6:09AM1.06m | 6:57PM0.90m | 7:06AM0.90m | 7:42PM0.72m | ||||||||
 | |  | | | | | | | | | | | | | | | | | |  | |
 | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 8:29 | — | — | 8:27 | — | — | 8:25 | — | — | 8:24 | — | — | 8:22 | — | — | 8:22 | — | — | 8:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 22 | 23 | 21 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 |
Feels °C | 22 | 21 | 23 | 23 | 24 | 22 | 23 | 19 | 14 | 17 | 16 | 15 | 16 | 14 | 13 | 14 | 14 | 13 | 15 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 6 | NNW 5 | WNW 9 | W 8 | NW 11 | SSW 14 | NNW 12 | SSW 14 | WNW 9 | SSW 14 | SW 13 | SW 13 | W 8 | SW 13 | W 8 | W 8 |
| kJ | 243 | 237 | 159 | 97 | 72 | 30 | 19 | 61 | 37 | 172 | 21 | 15 | 20 | 26 | 20 | 7 | 7 | 5 | 7 | 1 | 5 |
Swell 2 Height (m) Direction Period (s) | W 8 | SW 16 | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 9 | NW 11 | SSW 15 | WNW 9 | W 11 | SSW 14 | — | SSW 14 | — | — | — | SW 13 | W 8 | SW 13 | SW 12 |
| kJ | 5 | 38 | 13 | 12 | 21 | 51 | 62 | 19 | 21 | 25 | 10 | 18 | — | 20 | — | — | — | 7 | 1 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | SW 14 | W 8 | SSW 15 | SSW 14 | WNW 8 | SSW 4 | SSW 4 | S 4 | NNW 13 | SSW 15 | — | NNW 12 | — | — | — | — | — | — | W 9 | — | W 11 |
| kJ | 7 | 5 | 21 | 20 | 6 | 3 | 4 | 1 | 17 | 21 | — | 14 | — | — | — | — | — | — | 2 | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 5 | NNW 7 | NNW 7 | NNW 10 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 6 |
| kJ | — | — | — | — | — | — | — | 25 | 329 | 242 | 904 | 456 | 674 | 604 | 891 | 1175 | 931 | 618 | 468 | 273 | 151 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 200 | 4 | 5 | 56 | 7 | 19 | 433 | 301 | 19 | 612 | 133 | 548 | 612 | 461 | 278 | 681 | 443 | 561 | 796 | 113 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Praia do Magoito Surf forecast
The above surf forecast table for Praia do Magoito provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Magoito can be found by selecting the local surf guide option on the grey menu. Our Praia do Magoito 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 (Praia do Magoito) 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 Praia do Magoito 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.
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