Surf Forecasts:
Playa de Seaia surf forecast from 15 Aug 2026:
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 7ft (2.1m), 11s period, NNW swell with 952 kJ wave energy.
Best Forecast Surf Conditions for Playa de Seaia this week:
The most powerful waves expected at Playa de Seaia in the next 16 days are 2.1m 11s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Fri 21st Aug) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for Playa de Seaia over the next 16 days.
The Lowdown
Alright folks, Rusty again, breaking it down for those of you who think in feet and miles per hour.
It’s a rough start. We've got a long stretch of flat, junk surf starting now, Saturday the 15th of August. The wind is blowing straight onshore, mostly out of the NNE, and the swell is short and weak. That "poor surf" stamp is sticking around for days.
Finally, we see a break in the clouds on Monday, the 24th of August. The afternoon at Playa de Seaia is looking like the real deal. The wind will swing to a light cross-offshore breeze from the WNW, cleaning things right up. The swell will be about 6ft from the north, with a 9-second period, so it’ll have some decent push and shape. The combined energy is solid (609). The water temp is about 67°, so about normal for this time of year. This is the standout session of the whole 16 days—the only time we get a proper wave with clean conditions. It’s a beginner spot, fairly consistent, and crowds can pop up now and again, but that’s the price for the best set on offer.
After that, the wind turns back onshore or cross-onshore, and the quality drops hard. There’s one more little glimmer way out on Sunday the 30th of August. The morning goes glassy with a tiny 3ft NW swell, a very long 10-second period, and a light offshore wind from the southwest. The energy is moderate (204). It’s clean but small—more of a longboard morning. The afternoon stays light and offshore, with the swell just over 4ft. It’s a nice finish, but nowhere near that Monday session.
So don’t get excited for the first week. Your one clear window is late Monday the 24th. After that, the second week looks pretty flat and windy again. That last weekend might give you one clean, small morning if you’re willing to get out there.
Rusty
Short Range ForecastSome drizzle, heaviest during Sat morning. Warm (max 23°C on Mon afternoon, min 18°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Tue afternoon, min 18°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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) | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NE 6 | NNE 6 | NNE 6 | NNE 4 | WNW 9 | N 6 | N 6 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 246 | 223 | 159 | 200 | 283 | 268 | 216 | 305 | 202 | 135 | 223 | 114 | 22 | 66 | 125 | 130 | 151 | 926 | 899 | 711 | 482 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on |
High Tide | 7:03PM3.59m | 7:26AM3.22m | 7:42PM3.38m | 8:03AM3.07m | 8:20PM3.11m | 8:41AM2.88m | 9:00PM2.82m | 9:22AM2.67m | 9:45PM2.53m | 10:12AM2.47m | 10:45PM2.29m | 11:23AM2.33m | 00:13AM2.17m | ||||||||
Low Tide | 12:45PM0.06m | 1:15AM0.03m | 1:25PM0.18m | 1:52AM0.23m | 2:04PM0.38m | 2:29AM0.48m | 2:45PM0.63m | 3:08AM0.75m | 3:31PM0.88m | 3:53AM1.01m | 4:29PM1.11m | 4:55AM1.21m | 5:51PM1.26m | ||||||||
 |  |  |  | | |  | | | | | | | |  | | | | | |  | |
 | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — |
 | — | — | 9:38 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:30 | — | — | 9:29 |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 20 | 20 | 21 | 20 | 21 | 23 | 20 | 21 | 23 | 20 | 21 | 22 | 21 | 20 | 20 | 19 | 19 | 20 | 19 |
Feels °C | 18 | 18 | 17 | 17 | 19 | 17 | 19 | 21 | 17 | 19 | 21 | 19 | 21 | 22 | 20 | 18 | 17 | 17 | 16 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | W 9 | NNW 8 | NNW 8 | W 8 | W 8 | WNW 10 | WNW 9 | WNW 8 | WNW 9 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 |
| kJ | 69 | 69 | 49 | 28 | 37 | 43 | 34 | 6 | 23 | 12 | 11 | 10 | 19 | 66 | 125 | 84 | 151 | 926 | 899 | 711 | 482 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 8 | NNW 7 | W 8 | W 8 | W 8 | W 8 | — | W 8 | W 8 | W 16 | NW 8 | W 8 | N 13 | NW 7 | NW 10 | WNW 9 | W 9 | W 9 | WNW 9 | W 8 |
| kJ | 20 | 10 | 30 | 4 | 5 | 5 | 5 | — | 12 | 11 | 5 | 2 | 11 | 4 | 54 | 49 | 84 | 57 | 25 | 25 | 21 |
Swell 3 Height (m) Direction Period (s) | — | — | W 8 | NNW 9 | — | — | W 10 | — | — | W 17 | — | SW 16 | NNW 7 | SW 14 | NW 11 | SW 13 | S 13 | SW 16 | W 16 | SW 15 | SW 15 |
| kJ | — | — | 10 | 8 | — | — | 2 | — | — | 6 | — | 10 | 5 | 8 | 31 | 7 | 3 | 10 | 5 | 9 | 8 |
Wind waves Height (m) Direction Period (s) | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NE 6 | NNE 6 | NNE 6 | NNE 4 | NNE 4 | N 6 | N 6 | N 6 | — | — | — | — |
| kJ | 246 | 223 | 159 | 200 | 283 | 268 | 216 | 305 | 202 | 135 | 223 | 114 | 22 | 16 | 115 | 130 | 66 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 151 | 227 | 153 | 123 | 227 | 165 | 169 | 386 | 18 | 50 | 50 | 50 | 50 | 59 | 175 | 104 | 175 | 37 | 149 | 244 | 18 |
Best forecast wave conditions in Galicia | |||||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Playa de Seaia Surf forecast
The above surf forecast table for Playa de Seaia provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Playa de Seaia can be found by selecting the local surf guide option on the grey menu. Our Playa de Seaia 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 (Playa de Seaia) 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 Playa de Seaia 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.
Playa de Seaia is 17 km (11 miles) from Carballo. If you plan a holiday in Galicia, look for hotels and other accommodation in Carballo. Carballo has rooms for a wide range of budgets as well as car hire and transport links.
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