Switzerland
Sion
Sion is a landlocked city in the Swiss canton of Valais, set high in the Alps with a strong seasonal tourism and outdoor recreation focus. It is not a coastal diving destination, and local diving activity is extremely limited. Nearby freshwater options exist in the wider region for training and practice, typically within clubs or dedicated facilities, but they are outside the city itself. For divers visiting Switzerland, Sion serves as a gateway to alpine scenery, high-altitude hiking, and nearby lakes and rivers for general water sports rather than destination scuba diving. If you’re after dive-rich experiences, consider closer towns on lakes like Lac Léman or Swiss plateau sites reachable by road or rail, or join a dive center in a nearby larger city for courses and excursions. Keep expectations aligned with the region’s cooler fresh and alpine environment, seasonal access, and limited direct dive opportunities.
Essential information for traveling in Switzerland
About Switzerland
Practicalities
Diving specifics
Dive sites and dive centers around Sion
Nearby Dive Sites (2)
- 0.0 km · 0 min
- 11.0 km · 22 min
Nearby Dive Centers (1)
- 3.3 km
Nearby cities for scuba diving around Sion
The best time to dive in Sion
The best months to dive in Sion are from June to August. Temperatures are confortable (21-24°C), currents are mild and the visibility is at its best.
Based on last year's weather. Scores compare months for this destination only and are indicative. A mitigated month may still suit many divers.
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