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Aerial satellite view of Rio Siera surf break in A Coruña, Northwest Spain, Spain
A Coruña, Northwest Spain, Spain

Rio Siera

42.648, -9.038
Edited by Tom Jackson
Verified May 2026
Cross-referencedCross-checked against Stormrider
At a glance
  • Rio Siera is a a-frame over beach, fast punchy beachbreak peaks with strong rips.
  • Suits advanced surfers, working 3-8 ft.
  • Peak September to March, water 13-19°C.
A-frame · BeachAdvanced3–8 ftJan – Dec

A highly consistent beachbreak also known as Furnas, Rio Siera sits on the northwest Spanish coast and delivers punchy, quality peaks across a long sandy stretch. SW to NW swells feed it well, with SE winds holding the faces clean offshore. It handles all tides but tends to sharpen up toward low, where the banks steepen and the peaks get more defined. Strong rips run the length of the beach, so read the water before paddling out. This one suits experienced surfers comfortable in fast, powerful beach surf. Bottom: sand. Season: year-round, with autumn and winter delivering the most consistent swell. Consistency: high. Bring a step-up or a wider shortboard for the bigger sets, when it's pumping at 6-8ft, rip awareness and a strong paddle are non-negotiable.

Wave fit

Skill suited
Advanced
BegIntAdv
Best months
Jan – Dec
J
F
M
A
M
J
J
A
S
O
N
D
Character
Fast punchy beachbreak peaks with strong rips.

Conditions

When it works
NESW
Swell window
SW
SW - NW
Offshore wind
SE
South easterly
Optimum tide
All tides
Size range
3-8ft
High
Hazards
No concerns
Trip planning

Quick facts

Water temp
13° to 19°C
Wetsuit
4/3 winter, 3/2 summer
What to bring
  • Shortboard 6ft to 6ft 4in for everyday surf
  • Step-up 6ft 6in to 7ft for larger swells
Lineup
Easy-going
Where it sits

Location

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About this break

What it's actually like

Crowd & Localism

Crowds are rarely an issue here, which makes it worth prioritising in a busy travel schedule. Dawn patrol sessions in autumn can deliver quality waves with minimal competition. Respect the locals you do encounter, northwest Spain has a proud surfing culture and that courtesy goes a long way.

Access & Facilities

Free parking is available. There is camping nearby, making this a practical base for a multi-day session. No major hazards are flagged beyond the strong rips that run along the beach length. Watch the current and identify a channel before committing to the paddle-out.

Nearby Alternatives

When Rio Siera goes flat or the wind turns onshore, the wider Galician coast offers options. Pantin to the south is the most popular wave in the region, ultra-consistent with a long stretch of swell-hungry peaks. Praia de Frouxeira to the south also delivers excellent quality peaks along its arcing beach length on similar swell.

10-day swell, wind and tide

Rio Siera surf forecast

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Forecast by Windy.app

More breaks in Northwest Spain

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Frequently asked

What you need to know before paddling out at Rio Siera

What skill level is Rio Siera suited for?
Rio Siera is a beach bottom, fast punchy beachbreak peaks with strong rips, break suited for advanced surfers. This is not a beginner break. Build up at softer waves first.
What size does Rio Siera work best at?
Working size is 3 to 8 ft. Below 3 ft the swell goes flat. Above 8 ft it tends to close out.
When is the best season to surf Rio Siera?
Rio Siera fires from September through March. Outside that window the swell window narrows and the lineup goes quiet.
What swell direction does Rio Siera need?
Rio Siera switches on with a sw - nw groundswell. Offshore winds blow from the south easterly.
What are the main hazards at Rio Siera?
Main hazards at Rio Siera: no concerns.
What type of wave is Rio Siera?
Rio Siera is a a-frame-breaking wave over beach. Fast punchy beachbreak peaks with strong rips.

Sources

  • Stormrider
Rio Siera
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