
Surf Forecasts:
Playa de Seaia surf forecast from 14 Sep 2026:
- Best quality surf: Thursday 17 Sep, 11PM (local time) - 4.5ft (1.3m), 9s period, NW swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 5PM (local time) - 11ft (3.5m), 15s period, NNW swell with 4,546 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 5PM (local time) - 2.5ft (0.8m), 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 Monday (Sep 14) at 5PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.7m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Playa de Seaia in the next 16 days are 3.5m 15s and forecast to arrive on Friday (Sep 18) at 5PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Mon 14th Sep) | 2.5ft (0.8m) 10s |
| Best Surf | 11PM (Thu 17th Sep) | 4.5ft (1.3m) 9s |
| Most Powerful | 5PM (Fri 18th Sep) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Playa de Seaia over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a tricky 16-day outlook for the region, so let’s get into it.
The period opens with a very brief window of clean, small waves at Playa de Seaia. Monday the 14th is the only real glimmer of hope in the first few days. You’ll find a tiny 3 ft swell from the NW with a period of 11 seconds, but the wind is glassy in the morning—dead calm. It’s a beginner-friendly 3 ft, so the conditions will be tidy, but the wave energy is weak (263). The water temperature is 64°, which is about normal for this time of year, so no surprises there. The afternoon sees a slight cross-off breeze and the swell drops a touch, but it’s still clean.
From Tuesday the 15th onward, things go downhill fast. A persistent northerly wind ruins the setup for the rest of the week. While there’s a jump in swell size—6 ft on the 16th and even 10 ft on the 18th—the onshore winds make it messy and unappealing. The swell on the 18th is huge (12 ft) with very long period from the NNW (15 seconds), but with a 16 mph onshore wind and a beach break setup, it’s one for kite surfers only. The combined energy is extreme (4,546), but it’s blown out.
There’s a small reprieve on Monday the 21st. The swell is a solid 6 ft from the NW (14 second period), which is a nice groundswell, but the wind is light cross-on from the east. It’s not clean, but it’s the best we’ve seen in days. Morning scores a 3/10 for potential. That long period at a beach break like Playa de Seaia may make the waves a bit too straight, but in these conditions, you take what you can get.
The standout event in the entire outlook is the morning of Tuesday the 22nd. After all the wind and chop, you get a 4 ft NW groundswell (12 seconds) with glassy conditions. The wind is 0 mph from the east. The break energy is moderate (487), but the forecast says “expect good surf conditions.” That’s the one session to circle. After that, the wind turns back onshore and the wave quality fades fast.
From Wednesday the 23rd through to the end of the 29th, it’s a long run of poor to marginal conditions. Onshore winds plague every session, and while there are occasional bumps in swell size (like a 5 ft on the 24th with a very long 18-second period from the WNW), the wind direction is never favorable. Crowds at Playa de Seaia are a factor sometimes, but honestly, on most of these days, there won’t be many takers.
In short: the first 16 days are a struggle. The only real standouts are the glassy Tuesday the 22nd morning, and if you’re desperate, the very clean but tiny Monday the 14th. Everything else is a fight against the wind.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 17°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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 11 | NW 10 | NW 10 | WNW 11 | WNW 10 | WNW 8 | NNW 11 | NNW 10 | NNW 11 | NW 10 | NW 10 | NW 9 | NW 14 | NNW 15 | NW 14 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 14 |
Wave Graph | |||||||||||||||||||||
194 | 122 | 76 | 81 | 135 | 271 | 687 | 782 | 1082 | 625 | 450 | 397 | 2974 | 4546 | 2684 | 1584 | 1129 | 794 | 487 | 324 | 1226 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | cross-on |
High Tide | 7:07PM3.27m | 7:24AM3.14m | 7:41PM3.02m | 7:57AM2.94m | 8:17PM2.75m | 8:34AM2.72m | 8:58PM2.47m | 9:20AM2.49m | 9:54PM2.24m | 10:30AM2.30m | 11:27PM2.09m | 12:15PM2.26m | 1:14AM2.14m | ||||||||
Low Tide | 12:54PM0.18m | 1:13AM0.29m | 1:29PM0.38m | 1:46AM0.53m | 2:07PM0.62m | 2:21AM0.79m | 2:48PM0.88m | 3:02AM1.05m | 3:42PM1.13m | 4:00AM1.27m | 5:05PM1.30m | 5:36AM1.38m | 6:53PM1.28m | ||||||||
8:11 | — | — | 8:12 | — | — | 8:15 | — | — | 8:15 | — | — | 8:17 | — | — | 8:18 | — | — | 8:18 | — | — | |
— | 8:47 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 28 | 22 | 19 | 20 | 18 | 18 | 19 | 18 | 17 | 18 | 17 | 17 | 18 | 17 | 17 | 20 | 18 | 22 | 27 | 24 |
Feels °C | 25 | 28 | 23 | 19 | 20 | 15 | 14 | 15 | 14 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 16 | 14 | 19 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | W 8 | WNW 11 | WNW 10 | WNW 8 | NNW 11 | NW 12 | NNW 11 | NW 10 | NW 10 | NW 9 | NW 14 | NNW 15 | NW 14 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 14 |
194 | 122 | 51 | 81 | 135 | 271 | 687 | 319 | 1082 | 625 | 450 | 397 | 2974 | 4546 | 2684 | 1584 | 1129 | 794 | 487 | 324 | 1226 | |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | NW 10 | W 8 | W 8 | N 13 | WNW 10 | — | — | — | — | NW 16 | — | — | — | — | — | — | NE 6 | NW 16 | NE 6 |
59 | 78 | 76 | 33 | 31 | 3 | 193 | — | — | — | — | 10 | — | — | — | — | — | — | 46 | 165 | 93 | |
Swell 3 Height (m) Direction Period (s) | NE 5 | NE 4 | NE 4 | NW 9 | N 14 | — | N 12 | — | — | — | — | — | — | — | — | — | — | — | NW 18 | — | — |
10 | 5 | 3 | 39 | 4 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | 13 | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 4 | N 5 | NNE 6 | NE 5 | NNW 10 | — | — | — | — | — | — | NE 5 | NE 5 | NE 6 | NE 6 | — | NE 6 | — |
— | — | — | 13 | 45 | 112 | 42 | 782 | — | — | — | — | — | — | 47 | 37 | 133 | 82 | — | 62 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 44 | 643 | 386 | 251 | 386 | 59 | 104 | 44 | 11 | 34 | 123 | 37 | 18 | 59 | 13 | 13 | 50 | 13 |
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.










