Surf Forecasts:
Leca surf forecast from 17 Aug 2026:
- Best quality surf: Saturday 22 Aug, 1AM (local time) - 3.5ft (1.1m), 7s period, NW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 4PM (local time) - 5ft (1.6m), 10s period, NW swell with 499 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 4AM (local time) - 2.5ft (0.8m), 8s period with NW swell.
Best Forecast Surf Conditions for Leca this week:
The surf forecast for Leca over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 4AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.1m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Leca in the next 16 days are 1.6m 10s and forecast to arrive on Friday (Aug 21) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 18th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 1AM (Sat 22nd Aug) | 3.5ft (1.1m) 7s |
| Most Powerful | 4PM (Fri 21st Aug) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Leca over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – looking at Leca for the next sixteen days, it’s a tough run. The setup is consistently getting hammered by cross-onshore winds, keeping things messy and choppy. There's no real stand-out, clean swell window, so we're just watching the calendar tick over.
The water temp is sitting at 68°F, which is about average for this time of year, nothing wild there.
The first real sign of life is on Monday the 28th of August in the morning. We get a rare moment of glassy conditions with a light 3ft NW swell, period around 8 seconds. The combined energy is moderate (114). It’s surfable, but it’s small and very ordinary. For a beginner-friendly spot, this is about as good as it gets in this stretch, but don't expect any fireworks.
After that, it’s back to the same old story of lumpy, cross-onshore slop until the very end of the forecast. On Monday the 31st of August, we get another glassy morning window, with a similar 3ft NW swell (9 seconds, 159 energy). Again, it’s clean but small. The first day of September brings a bit more size – 5ft to 5ft NW swell – but the wind is either onshore or cross-onshore, ruining the shape. The energy gets up there (333-378), but it’s just not clean enough for a good paddle.
Honestly, the best you can hope for is a dawn patrol on the 28th or 31st when the wind goes glassy. Otherwise, with the consistent cross-onshore wind and poor surf quality, the setup at Leca looks more interesting for a kite session than a paddle surf for the rest of the period.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 18°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Thu afternoon, min 15°C on Sat night). Winds increasing (light winds from the NNE on Fri night, fresh winds from the NW by Sun morning). | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 8 | WNW 6 | NW 7 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 8 | NW 7 | NW 10 | NW 7 | NW 6 | NW 6 | NW 8 | NW 8 | NW 7 | NW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 88 | 96 | 61 | 12 | 19 | 11 | 32 | 46 | 62 | 84 | 223 | 118 | 499 | 109 | 62 | 89 | 183 | 108 | 225 | 147 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | on | cross | cross | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 8:21PM2.80m | 8:58AM2.77m | 9:20PM2.92m | 9:46AM2.97m | 10:06PM3.05m | 10:25AM3.16m | 10:44PM3.17m | 11:00AM3.31m | 11:18PM3.25m | 11:32AM3.42m | 11:50PM3.30m | 12:03PM3.47m | 00:20AM3.30m | |||||||
Low Tide | 2:47AM1.25m | 3:09PM1.23m | 3:36AM1.11m | 3:57PM1.04m | 4:15AM0.96m | 4:36PM0.87m | 4:49AM0.84m | 5:10PM0.74m | 5:20AM0.74m | 5:42PM0.65m | 5:50AM0.68m | 6:12PM0.61m | ||||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 8:30 | — | — | 8:30 | — | — | 8:28 | — | — | 8:27 | — | — | 8:24 | — | — | 8:23 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 30 | 24 | 23 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 |
Feels °C | 26 | 28 | 24 | 24 | 24 | 22 | 22 | 23 | 21 | 17 | 15 | 14 | 14 | 16 | 15 | 15 | 15 | 12 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | NW 8 | NW 8 | WNW 6 | NW 7 | NW 5 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 11 | NW 10 | SW 15 | NW 10 | NW 7 | WNW 9 | NW 8 | NW 8 | SW 13 | W 8 |
| kJ | 2 | 96 | 61 | 12 | 19 | 7 | 32 | 46 | 62 | 84 | 59 | 106 | 8 | 60 | 43 | 25 | 183 | 108 | 7 | 5 |
Swell 2 Height (m) Direction Period (s) | W 7 | W 8 | W 8 | NNW 8 | SSW 4 | W 8 | NW 5 | SW 4 | NW 11 | NW 11 | SW 16 | W 9 | SW 12 | WNW 8 | NW 9 | SW 14 | W 9 | W 9 | — | SW 13 |
| kJ | 1 | 1 | 5 | 6 | 1 | 5 | 4 | 2 | 19 | 18 | 10 | 14 | 6 | 24 | 40 | 8 | 13 | 14 | — | 7 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 17 | SW 16 | W 8 | WNW 8 | WNW 11 | WSW 14 | SW 14 | NW 4 | SW 13 | SW 13 | SW 15 | — | W 10 | WNW 9 | — | SW 14 | SW 14 | — | — |
| kJ | 12 | 11 | 11 | 5 | 7 | 11 | 20 | 7 | 1 | 7 | 7 | 8 | — | 8 | 25 | — | 8 | 7 | — | — |
Wind waves Height (m) Direction Period (s) | NW 8 | — | — | SW 3 | — | SSW 4 | SW 3 | — | — | — | NW 8 | NW 7 | NW 10 | NW 7 | NW 6 | NW 6 | — | — | NW 7 | NW 7 |
| kJ | 88 | — | — | 1 | — | 2 | 5 | — | — | — | 223 | 118 | 499 | 109 | 62 | 89 | — | — | 225 | 147 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 299 | 13 | 67 | 163 | 24 | 110 | 156 | 0 | 28 | 283 | 13 | 300 | 156 | 0 | 283 | 186 | 186 | 13 | 186 | 38 |
Best forecast wave conditions in Douro and Minho | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
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Information about the Leca Surf forecast
The above surf forecast table for Leca provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Leca can be found by selecting the local surf guide option on the grey menu. Our Leca 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 (Leca) 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 Leca 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.
Leca is 1 km (1 miles) from Matosinhos. If you plan a holiday in Douro and Minho, look for hotels and other accommodation in Matosinhos. Matosinhos has rooms for a wide range of budgets as well as car hire and transport links.
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