Health & Wellness
What Temperature Should a Sauna Be? A Complete Guide
A guide to sauna temperatures — from the Finnish tradition of 80–110°C to the health research on optimal temperature ranges, and how Wellness One saunas achieve 110°C.
By Wellness One Lifestyle · Published 2026-08-02 · Updated 2026-08-02
Sauna Temperature: What You Need to Know
Temperature is one of the most important factors in the sauna experience. Too low, and the health benefits are reduced. Too high, and the experience becomes uncomfortable. The ability to reach and maintain high temperatures is a direct function of insulation quality.
The Finnish Standard
Traditional Finnish saunas operate at 80–110°C. The Finnish sauna tradition — from which Wellness One's products draw their heritage — has always favoured high temperatures combined with löyly (steam from water poured on the stones). The combination of high heat and humidity produces the characteristic sauna experience.
Why Temperature Matters for Health Benefits
The health research on sauna use is based on traditional Finnish sauna temperatures of 80–100°C. Studies showing cardiovascular benefits, muscle recovery benefits, and longevity associations are based on regular use at these temperatures. Lower-temperature saunas (such as infrared saunas at 40–60°C) have a different physiological effect and a weaker evidence base.
Wellness One: 110°C Maximum
Every Wellness One sauna reaches a maximum temperature of 110°C. This is significantly higher than mid-range competitors (80–90°C) and barrel saunas (70–80°C). The 100mm SIP insulation and double-glazed aluminium glazing are what make this possible — the sauna retains heat efficiently, allowing the heater to drive the temperature to 110°C without excessive energy consumption.
Recommended Session Temperatures
- First-time users: 70–80°C for 10–15 minutes
- Regular users: 85–100°C for 15–20 minutes
- Experienced users: 100–110°C for 10–20 minutes
Always listen to your body. Exit the sauna if you feel dizzy, nauseous, or uncomfortable.
Frequently Asked Questions
What temperature should a sauna be?
Traditional Finnish saunas operate at 80–110°C. Wellness One saunas reach a maximum of 110°C — the highest temperature available in an outdoor sauna. Most mid-range competitors reach 80–90°C.
Is 110°C too hot for a sauna?
110°C is the traditional Finnish sauna temperature. The heat is dry, and the body acclimatises quickly. Most users find 80–100°C comfortable for a 10–20 minute session. The ability to reach 110°C means the sauna can be set to any preferred temperature.