Autumn thermal baths in Italy — idealista/information

Why visit the thermal baths now? Crisp air makes the warm water feel even more comforting, autumn colours alter the scenery, and the summer crowds give way to a slower pace. 

Across Italy, natural pools and historic spa resorts become welcoming autumn retreats, with benefits for the respiratory system and skin. The choice comes down to the setting: untamed nature or full-service comfort. 

Here are 10 places where a warm soak meets autumn foliage.

Saturnia, Tuscany

Here, water makes a long underground journey from Monte Amiata before emerging at 37.5°C. It contains thermal plankton, sulphur and mineral salts with exfoliating and antiseptic properties. 

There are two distinct experiences: on one side, Terme di Saturnia Natural Spa & Golf Resort, with its large spring-fed pool and treatments based on bioglea; on the other, the Cascate del Mulino, naturally formed limestone pools that are free to access. In autumn, steam rising into cool air makes the temperature contrast particularly striking.

Bagni San Filippo, Val d’Orcia

Set in woodland, Bagni San Filippo has pools and waterfalls formed through centuries of limestone deposits. The celebrated Balena Bianca, or “White Whale”, releases water at around 48°C, which is particularly welcome as temperatures fall.

Access to the Fosso Bianco is free, with a green trail leading to pools of varying temperatures. The bright white formations against warm autumn leaves make this a particularly photogenic time for an outdoor soak.

Bagno Vignoni, Val d’Orcia

Unlike anywhere else, this village is built around a large pool of water at 52°C. Bathing is no longer permitted there for conservation reasons, but the experience continues at Parco dei Mulini, where channels carved into the rock form warm pools with views across the hills. 

Those looking for facilities can find established options such as Adler Spa Resort Thermae and Hotel Posta Marcucci, both with panoramic thermal pools. In autumn, steam gives the Renaissance historic centre its distinctive atmosphere.

Terme di Sirmione, Lombardy

In Sirmione, the sulphurous, saline, bromine- and iodine-rich water of the Boiola spring is appreciated for the skin and respiratory system. Aquaria Thermal SPA is at the heart of the experience, with indoor and outdoor pools, saunas and generous relaxation areas surrounded by greenery. 

Autumn’s highlight comes at sunset, when the water’s heat meets the changing tones of the lake. Nearby, the Grotte di Catullo add a historical note to a wellness-focused stay.

Fonteverde, San Casciano dei Bagni, Tuscany

Created at the request of Ferdinando I de’ Medici, Fonteverde brings together historic elegance and a medical focus. Its water, containing fluoride, magnesium and sulphur, emerges at 42°C and feeds indoor and outdoor pools, including an infinity pool overlooking the hills. 

Its Equilibrium philosophy combines nutrition, thermal treatments and eastern disciplines. During autumn, indoor sensory routes such as the Etruscan and Mediterranean paths provide warmth and enveloping scents.

Terme di Viterbo, Lazio

Viterbo’s thermal area has been mentioned since Etruscan times and in Dante’s writings, with options for different preferences. Il Bullicame and Piscine Carletti allow free bathing in pools fed by hyperthermal water, even when the air is cooler. 

For full facilities, Terme dei Papi has a monumental limestone pool of more than 2,000 m², with sulphurous water suited to skin and respiratory wellbeing. Autumn intensifies the steam and sharpens the outline of the Lazio countryside.

Terme di Bormio, Lombardy

In Bormio, thermal bathing meets the mountains. Perched on the rock, Bagni Vecchi preserves pools dating back to Roman times and has an outdoor panoramic pool overlooking the valley, particularly striking among autumn leaves and the season’s first snow. 

The Grotta Sudatoria di San Martino, a natural steam bath carved into the rock, is a rare feature. Bagni Nuovi centres on Liberty-style elegance and its large outdoor Giardini di Venere route. Bormio Terme, in the town itself, completes the local provision. For a wilder setting, the so-called Vasche di Leonardo are free pools in the woods.

Terme di Merano, Trentino-Alto Adige

The celebrated “glass cube” brings spa and scenery together, keeping the pools and mountains in constant view. Terme di Merano has 25 indoor and outdoor pools, as well as a high-quality sauna area. 

Seasonal treatments use local products including mountain hay, grapes, apples and aromatic herbs. Its central position makes it easy to pair downtime with walks beside the Passirio River or a visit to the Gardens of Trauttmansdorff Castle, which are particularly appealing in autumn.

Terme di Dolomia, Val di Fassa

In Pozza di Fassa, water from the Alloch spring, Trentino’s only sulphurous spring, supplies a spa focused on skin health and physical recovery. Alongside treatments covered by the national health system, there are wellness programmes designed to relax tired muscles after autumn walks. 

It should not be confused with nearby QC Terme Dolomiti, which is more focused on leisure. Terme di Dolomia retains a health-oriented identity and a quieter atmosphere.

Terme Euganee, Veneto

Abano and Montegrotto form Europe’s largest thermal spa area. The highlight here is mud therapy: mature DOC Euganean thermal mud is recognised for its anti-inflammatory effect. 

The saline, bromine and iodine-rich waters can reach 87°C and supply pools in more than 100 hotels, each with its own treatment and spa department. Between sessions, the Euganean Hills have gentle walking routes and towns such as Arquà Petrarca, along with wineries that help put the wider area into context.

Article originally seen in The Wom Travel: Le terme più belle d’Italia, le 10 migliori dove andare in autunno