Río Sieira 68.2
#2501 of 5756 surf spots in the world · 🇪🇸 Spain · La Coruña · near Santiago de Compostela
Very consistent, no off season.
Best time to surf Río Sieira
The best time to surf Río Sieira is March, April, November. The season runs Mar to Mar. In March the water sits around 13°C, so pack a 5/4 with boots and hood, and the typical wave is 1.4 m. The nearest airport is OPO (160 km) and the nearest town is Santiago de Compostela (48 km).
| Month | Surfable | Clean | Size | Water | Suit |
|---|---|---|---|---|---|
| Jan | 94% | 26% | 1.4 m | 13°C | 4/3 |
| Feb | 100% | 24% | 1.8 m | 13°C | 4/3 |
| Mar | 96% | 47% | 1.4 m | 13°C | 5/4 |
| Apr | 93% | 31% | 1.2 m | 14°C | 4/3 |
| May | 90% | 5% | 0.9 m | 15°C | 4/3 |
| Jun | 83% | 3% | 0.8 m | 16°C | 3/2 |
| Jul | 70% | 1% | 0.7 m | 16°C | 3/2 |
| Aug | 72% | 1% | 0.7 m | 16°C | 3/2 |
| Sep | 83% | 13% | 0.8 m | 17°C | 3/2 |
| Oct | 93% | 23% | 1.2 m | 15°C | 4/3 |
| Nov | 99% | 42% | 1.7 m | 16°C | 4/3 |
| Dec | 97% | 29% | 1.8 m | 15°C | 4/3 |
What is under Río Sieira
Eight kilometres out along its swell window the sea floor is already 487 m deep, deep right up to the door, so swell arrives with its energy intact. Alongside the bank the survey finds a channel, 808 m against 487 m, deep enough to bend swell onto one peak instead of spreading it along the beach.
Measured, not estimated: NOAA ETOPO 2022 global relief at 15 arc-seconds, about 460 m per cell, sampled along this spot’s own swell window. At that scale the survey sees passes and channels; it cannot see a reef ledge, so nothing here is said about how the wave breaks.
Why 68.2
Seven parts, each normalised 0 to 1 and multiplied by its weight; the sum is scaled so the best spot in the world scores 100. Wave quality and what the spot does on its best days carry more than half of it, which is what separates this from a ranking of where the water is warm.
The detail
Faces 285° with 33% open water around it. Friendly morning wind 64% of days. Mean peak period 10.0 s. Days over 3 m: 1%. On its best tenth of days it reaches 2.2 m, with a peak period of 15 s. Mellow days (0.4 to 1.2 m): 54%. Months that work: 12 of 12. Coordinates 42.647, -9.034 (OpenStreetMap).
Live here
20 homes for sale within 30 km of Río Sieira, up to 60,000 euro. Houses and flats you can move into, never plots of land. Cheapest right now €18,000. Checked 2026-09-13. Listings from Fotocasa and the agents themselves; we take no part in the deal.
€18,000Loft · 66 m² · 2 roomsMuros19 km from the spot →
€23,000Home · 220 m² · 5 roomsNoia17 km from the spot →
€23,000Home · 26 m² · 1 roomNoia17 km from the spot →
€35,000Home · 63 m²Muros15 km from the spot →
€50,000Home · 201 m²Rianxo17 km from the spot →
€58,000Flat · 74 m² · 3 roomsA Pobra do Caramiñal9 km from the spot →What it costs to be here
Remote spot, so the local estimate is 15% below the country average. Estimate: World Bank PPP price level for Spain (2025, United States = 1.00) applied to a fixed surfer basket, then adjusted for how remote the spot is. Your own number moves with the season and how you live.
Sumba has eight spots in this ranking, the best of them inside the world top 50. A cabin is €11,500. The land it sits on is separate, from €6,500 (€9,950 oceanfront), on an 80-year lease that extends at the end. Water, septic and electricity are another €6,500, and furniture is on top, so a finished cabin lands around €28,000 plus the land, payable in instalments.
Eco Beach City is run by the same people as SurfRanking, so treat this as our own advert, not a recommendation. It is an off-plan property in Indonesia: take your own legal and financial advice before paying anything.
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