Surf Forecasts:
Playa de Seaia surf forecast from 21 Aug 2026:
- Best quality surf: Thursday 27 Aug, 11PM (local time) - 11ft (3.5m), 11s period, WNW swell with glassy winds.
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 11ft (3.5m), 11s period, WNW swell with 2,924 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 7ft (2.1m), 10s period with NW swell.
Best Forecast Surf Conditions for Playa de Seaia this week:
The surf forecast for Playa de Seaia over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 8AM. The primary swell is predicted to be 2.1m and 10s period with a secondary swell of 0.3m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Playa de Seaia in the next 16 days are 3.5m 11s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Aug 26) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 21st Aug) | 7ft (2.1m) 10s |
| Best Surf | 11PM (Thu 27th Aug) | 11ft (3.5m) 11s |
| Most Powerful | 2AM (Fri 28th Aug) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Playa de Seaia over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s on the table for Playa de Seaia over the next couple of weeks. I gotta be straight with you—don’t rush down there just yet. The first few days are pretty average, with messy conditions and small waves. We’ve got a run of pretty ordinary surf from Friday the 21st right through to Sunday the 23rd, with only knee-to-waist high dribble and mostly onshore or cross-off breezes. It’s not until later in the week that things start to wake up.
Now, Monday the 24th is still tiny, but there’s a glimmer of hope: a glassy morning with 2ft of weak swell (combined energy of all swells directed here 88) and zero wind. It’s small, but clean. That’s about as good as it gets for the first few days.
The real standout kicks in on Thursday the 27th of August. That morning we see a clean 7ft groundswell from the WNW, with a period of 11 seconds and moderate offshore winds from the SW. The energy jumps right up (combined energy of all swells directed here 1091), and by the afternoon it’s even better—7ft, clean, and glassy enough for a proper session. This is the best on offer for the whole window: solid, powerful, and lined up. Friday the 28th keeps the quality going with a 10ft swell early (combined energy 2023), but that’s getting into expert-only territory—big, powerful, and best left to the crew who know what they’re doing.
After that, Saturday the 29th and Sunday the 30th still have fun, cleaner waves in the 4ft to 5ft range, with offshore winds and nice shape. The week after that (into early September) drops off again, with smaller swells and more onshore winds. The 4th of September has a brief glassy morning with 4ft swell, but it’s not enough to get excited about.
Water temp is about average for this time of year, nothing weird going on. Playa de Seaia is a beginner-friendly spot, fairly consistent, and the SW offshore wind lines up nice with the optimum swell direction from the NW. The crowds can show up sometimes, but given the quality of the 27th and 28th, it’ll be worth a few extra bodies in the water.
Overall, the real highlight is the 27th and 28th of August—don’t sleep on it.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sat afternoon, min 15°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Mon afternoon. Warm (max 23°C on Mon afternoon, min 17°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | NNW 10 | NW 10 | NNW 10 | NNW 9 | NNW 8 | NE 6 | NE 7 | WSW 10 | WSW 9 | WSW 9 | NNE 7 | SW 8 | NNE 7 | NNE 7 | W 7 | WSW 7 | WSW 7 | W 8 | W 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 836 | 709 | 740 | 385 | 180 | 151 | 131 | 209 | 149 | 96 | 77 | 39 | 61 | 17 | 157 | 163 | 51 | 382 | 700 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | cross-on | cross | cross-off | cross | cross-off | glassy | off | off | off | cross-off | off | off | off |
High Tide | 10:45PM2.29m | 11:23AM2.33m | 00:13AM2.17m | 12:57PM2.31m | 1:46AM2.21m | 2:16PM2.44m | 2:50AM2.37m | 3:10PM2.64m | 3:35AM2.56m | 3:50PM2.86m | 4:11AM2.75m | 4:24PM3.07m | 4:44AM2.92m | ||||||
Low Tide | 4:55AM1.21m | 5:51PM1.26m | 6:23AM1.30m | 7:26PM1.24m | 7:49AM1.22m | 8:36PM1.08m | 8:49AM1.04m | 9:25PM0.88m | 9:32AM0.83m | 10:03PM0.66m | 10:08AM0.62m | 10:36PM0.46m | |||||||
 |  | |  |  | | | | |  |  |  |  | | | |  | | | |
 | — | 7:46 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — |
 | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:25 | — | — | 9:24 | — | — | 9:22 | — | — | 9:21 |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | 5 | 3 | — | — | 1 | 3 | — | 3 |
Temp °C | 20 | 19 | 20 | 19 | 19 | 23 | 21 | 18 | 23 | 20 | 18 | 23 | 20 | 19 | 22 | 21 | 18 | 21 | 19 |
Feels °C | 19 | 19 | 19 | 17 | 16 | 21 | 20 | 19 | 24 | 20 | 18 | 25 | 21 | 17 | 18 | 18 | 17 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NW 10 | NNW 10 | NNW 9 | NNW 8 | NNW 8 | NE 7 | WSW 10 | WSW 9 | NNE 7 | NNE 7 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NW 9 | WNW 6 | N 7 | — |
| kJ | 836 | 709 | 740 | 385 | 180 | 113 | 131 | 209 | 149 | 96 | 77 | 36 | 61 | 17 | 10 | 22 | 35 | 1 | — |
Swell 2 Height (m) Direction Period (s) | W 9 | NNW 12 | W 9 | W 10 | W 9 | W 9 | NNW 8 | NNE 6 | NNE 6 | WSW 9 | SW 8 | SW 8 | W 8 | NW 12 | NW 10 | NNE 8 | WNW 9 | — | — |
| kJ | 78 | 150 | 60 | 47 | 40 | 24 | 45 | 62 | 44 | 96 | 54 | 39 | 1 | 5 | 16 | 7 | 49 | — | — |
Swell 3 Height (m) Direction Period (s) | S 13 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | W 10 | N 7 | N 7 | N 7 | W 9 | NNE 8 | N 13 | W 10 | W 10 | NW 12 | NNW 11 | — | — |
| kJ | 3 | 9 | 9 | 8 | 8 | 8 | 66 | 28 | 36 | 35 | 2 | 13 | 3 | 2 | 2 | 6 | 12 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 4 | NE 6 | NE 6 | — | — | — | — | — | — | SW 4 | WSW 5 | W 7 | WSW 7 | WSW 7 | W 8 | W 9 |
| kJ | — | — | — | 24 | 69 | 151 | — | — | — | — | — | — | 45 | 57 | 157 | 163 | 51 | 382 | 700 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 59 | 37 | 225 | 18 | 13 | 71 | 11 | 1 | 0 | 1 | 0 | 0 | 11 | 71 | 0 | 1 | 0 | 69 | 0 |
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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