San Lorenzo (Gijón) surf guide
San Lorenzo is a 1.5 km urban sand beach right in the centre of Gijón (Asturias). Its sandy bottom produces a shifting break — a beach break with lefts and rights depending on the bank — whose quality changes with every storm. This guide sums up the local knowledge that also feeds our forecast with an AI quality prediction.
The wave
- Type: sand beach break, with peaks that move as the banks shift.
- Usual size: between 0.5 and 2 m. Above 2 m the wave tends to close out and becomes hard to surf.
- Best size: 1.1–1.8 m with a long period (10 s or more).
- Period: the longer the better; from 12 s the wave gains power and shape.
Tide
San Lorenzo works best on a mid-to-low tide. At high tide the water reaches the promenade wall and there is no usable break left; at extreme low tide the wave can break too far out and closed. Plan your session around mid tide going out.
Swell direction
- Best: NW–NNW (315°–340°). The North Atlantic swell comes in clean and with a long period.
- Good: N–NNE (340°–20°), though it usually brings a bit more wind with it.
- Fair: W (270°). The beach sits side-on and the wave loses power.
- Bad: E–SE. The coast itself shelters the beach from easterly swells: no wave gets in.
Wind
- Offshore (ideal): S–SE. It blows from land to sea, grooms the face of the wave and keeps it clean and hollow; even at 8–14 kt conditions can be excellent.
- Onshore (bad): N–NW. It flattens and messes up the wave; above 11 kt surfing gets much harder.
- Cross-shore N/NE: acceptable, it sometimes leaves waves with some shape.
- Strength: up to 7 kt is light; 8–15 kt is moderate; above 15 kt any direction spoils the conditions, and over 25 kt going in is dangerous.
Water temperature and wetsuit
- Summer (Jun–Sep): 18–21 °C — 3/2 mm suit, or no suit in August.
- Autumn (Oct–Nov): 16–18 °C — 4/3 mm suit.
- Winter (Dec–Feb): 12–15 °C — 5/4 mm suit with hood, boots and gloves.
- Spring (Mar–May): 13–17 °C — 4/3 mm suit.
Seasons
- Autumn (Sep–Nov): the best time of year. Frequent North Atlantic swells, mild water and fewer people.
- Winter (Dec–Feb): the biggest and most powerful waves of the year, with cold and frequent storms.
- Spring (Mar–May): a transition; irregular swells with the odd very good day.
- Summer (Jun–Aug): flat most days; the few swells usually stay at 0.5–1 m. Crowded beach.
Areas of the beach
- San Pedro (left end): where the least swell gets in — the pick on big days or for bigger boards. Mid or low tide only: at high tide there is backwash off the wall and paddling out is very hard. On a big swell at low tide it can barrel.
- Centre: works on a medium swell; it depends a lot on the sandbanks of the moment.
- Piles end (right): a left forms on a medium swell; when the sea is big it can be too much for beginners.
The perfect session
The combination those of us who surf San Lorenzo are after:
- NW swell of 1–1.5 m with a 12–14 s period
- S wind of 5–11 kt (offshore)
- Mid-to-low tide
- No heavy rain (it muddies the water)
Will it line up this week? Check the San Lorenzo forecast with its AI quality prediction →
Frequently asked questions
What is the best tide to surf at San Lorenzo?
Mid-to-low tide. At high tide the water reaches the promenade wall and no usable break is left; at extreme low tide the wave can break too far out and closed. The mid-to-low window is the one that gets the sandbanks working.
What wetsuit do I need to surf in Gijón?
In summer (18–21 °C) a 3/2 mm, and even no suit in August. In autumn a 4/3 mm. In winter (12–15 °C) you need a 5/4 mm with hood, boots and gloves. In spring, back to the 4/3 mm.
What is the best time of year to surf at San Lorenzo?
Autumn (September to November): frequent North Atlantic swells, water still mild and fewer people. Winter brings the biggest and most powerful waves of the year, but with cold and storms. In summer the sea is flat most days.
Is San Lorenzo a good beach to learn to surf?
Yes. It is an urban sand beach break with waves from 0.5 to 2 metres, surf schools on the beach itself and easy access. On small days it is ideal for beginners; once the swell goes over 2 metres the wave closes out and it is no longer a place to learn.
Which wind is good for surfing at San Lorenzo?
A south or south-east wind (offshore, from land to sea): it keeps the wave clean and ordered even when moderate. A north or north-west wind (onshore) flattens and messes it up; above 11 knots onshore surfing gets much harder.
Which part of San Lorenzo has the best waves?
It depends on the size. San Pedro (the left end) is where the least swell gets in: the pick on big days, and only at mid or low tide. The centre works on a medium swell depending on the sandbanks. At the Piles end a left forms on a medium swell, demanding when the sea is big.