Spain in September: 7 Hidden Gems You Can’t Miss in 2026
Discover the best-kept secrets in Spain for a September 2026 vacation. From coastal villages to medieval towns, these unique places offer an authentic experience away from the crowds.
Why Visit Spain in September 2026?
September in Spain is a time of transition. The summer crowds have thinned, the scorching heat has mellowed into a golden warmth, and the country reveals its quieter, more intimate side. If you're looking for unique places to explore in Spain during September 2026, this guide will take you off the beaten path to discover the soul of Spain—unfiltered and unforgettable.
1. Rias Baixas, Galicia: Where the Sea Whispers to the Vineyards
Why Go? One of the best hidden gems to visit in Spain in September 2026, Rias Baixas is a paradise of emerald hills, Atlantic estuaries, and fresh seafood. This Galicia gem is famous for its albariño wine and misty coastal charm.
Key Attractions:
- Bodegas Pazo de Señorans (DO Rías Baixas): Sip crisp albariño in a sun-drenched courtyard. Address: Carretera Meaño-Cambados, km 1, 36633 Meaño, Pontevedra. Hours: Daily 10:00 AM–7:00 PM.
- Combarro’s Hórreos: Wander past granite granaries in this postcard-perfect fishing village. Address: Combarro, 36635 Poio, Pontevedra.
The Experience:
Rias Baixas is a must-visit hidden gem in Spain for September 2026. Paddle through the rías at sunset or savor pulpo a feira (octopus with paprika) by the waterfront. The Atlantic breezes and golden light make this a photographer’s dream.
Pro Tip: Rent a kayak for a serene estuary adventure at dusk.
2. Albarracín, Aragon: A Medieval Dream in Terracotta
Why Go? Albarracín is a top secret spot in Spain for a September 2026 trip. This cliffside village dazzles with ochre-hued buildings, winding streets, and a fairy-tale ambiance.
Key Attractions:
- Albarracín Town Center: Explore Plaza Mayor and artisan workshops. Best hours: 10:00 AM–6:00 PM.
- Museo de Albarracín: Dive into the village’s Moorish and Christian history. Address: Calle Azagra, 3. Hours: Tue–Sun, 10:00 AM–2:00 PM & 4:00 PM–7:00 PM.
The Experience:
Wander the cobbled streets of this lesser-known attraction in Spain for September 2026. Try ternasco asado (roast lamb) at Casa de la Julianeta, where recipes are passed down through generations.
Pro Tip: Hike the Ruta de los Puentes Colgantes for breathtaking river views.
3. Cudillero, Asturias: The Fisherman’s Staircase to Heaven
Why Go? A unique place to explore in Spain during September 2026, Cudillero charms with pastel houses cascading down a cliffside and a bustling harbor.
Key Attractions:
- Cudillero Harbor: Watch fishermen unload the day’s catch. Best time: Early morning.
- Mirador de La Garita: A viewpoint with panoramic coastal vistas. Open 24/7.
The Experience:
Savor merluza a la sidra (hake in cider) at El Pescador, a no-frills seafood joint. This off-the-beaten-path destination in Spain for September 2026 is perfect for travelers seeking authenticity.
Pro Tip: Visit in September to avoid summer crowds while enjoying the same stunning scenery.
4. Sierra de Grazalema, Andalusia: Where Eagles Dare (and Hike)
Why Go? A hidden gem in Spain for September 2026, this UNESCO Biosphere Reserve offers rugged hikes, limestone peaks, and pueblos blancos (whitewashed villages).
Key Attractions:
- Zahara de la Sierra: A cliffside village with a Moorish castle. Address: 11688 Zahara de la Sierra, Cádiz.
- Garganta Verde: A dramatic canyon hike with ladders and waterfalls. Access: Guided tours via Centro de Visitantes El Bosque.
The Experience:
Hike the Garganta Verde to a hidden waterfall, then refuel with queso payoyo (goat cheese) in Zahara. This is one of the best-kept secrets in Spain for a September 2026 vacation.
Pro Tip: Stay at Hotel Molina for insider trail recommendations.
5. Besalú, Catalonia: A Medieval Bridge to the Past
Why Go? Besalú is a must-visit hidden gem in Spain for September 2026, with a 12th-century bridge, Jewish quarter, and timeless charm.
Key Attractions:
- Pont de Besalú: A fortified bridge with a gatehouse. Open 24/7.
- Mikvé (Jewish Bath): A hidden ritual bath. Hours: Tue–Sun, 10:00 AM–2:00 PM & 4:00 PM–7:00 PM.
The Experience:
Cross the Pont de Besalú and explore the Mikvé, a testament to the town’s Jewish heritage. Try fideuà at Restaurant Pont Vell.
Pro Tip: Visit on a Monday for a crowd-free experience.
6. Cuéllar, Castilla y León: The Forgotten Walled City
Why Go? A lesser-known attraction in Spain for September 2026, Cuéllar boasts medieval walls, a castle-turned-parador, and cochinillo asado (suckling pig).
Key Attractions:
- Castillo de Cuéllar: A fortress-turned-hotel. Hours: Daily 10:00 AM–2:00 PM & 4:00 PM–7:00 PM.
- Iglesia de San Martín: A mudéjar church with intricate brickwork.
The Experience:
Stay overnight in the Castillo de Cuéllar and dine on cochinillo asado at Mesón El Rincón del Conde. This is a top secret spot in Spain for a September 2026 trip.
Pro Tip: Pair your meal with a glass of Ribera del Duero wine.
7. Aínsa, Aragón: The Gateway to Ordesa’s Wild Heart
Why Go? Aínsa is a unique place to explore in Spain during September 2026, offering a medieval square and access to Parque Nacional de Ordesa.
Key Attractions:
- Plaza Mayor de Aínsa: A lively square with arcaded buildings.
- Parque Nacional de Ordesa: Hike to Cola de Caballo waterfall.
The Experience:
Hike through beech forests to the Cola de Caballo waterfall, then enjoy migas at Casa Cuello. This is one of the best hidden gems to visit in Spain in September 2026.
Pro Tip: Stay at Hotel Casa Cuello for trail tips and picnics.