To find out if it is warmer inside a sauna or during a hot summer day in the Po Valley, you need to consider the temperature and humidity in the different environmental conditions.
First of all it is good to remember that there are different types of saunas, and that for each of these the level of humidity and temperature can vary depending on the operator's settings. To have something concrete to think about we adopt the following ranges, which should not deviate too much from the real ones:
| Temperature | Humidity | |
|---|---|---|
| Finnish sauna | 80-90 ° C | 10% - 20% |
| Sanarium | 60-70 ° C | 40% - 50% |
| Turkish bath | 50 ° C | 100% |
At this point we take as a reference the climate averages of the last 30 years, in the month of July, in the province of Verona (Fonte il meteo.it)
| Maximum temperature | Relative humidity | |
|---|---|---|
| Average July (last 30 years) | 29 ° C | 73% |
At this point we use the so-called heat index to calculate the perceived temperature with a mathematical formula, ie the actual "hot" sensation felt by a subject (which, as we have said, depends not only on the temperature but also on the relative humidity).
The calculation results are shown in the table:
| Temperature | Humidity | Perceived heat | |
|---|---|---|---|
| Finnish sauna | 80-90 ° C | 10% - 20% | 91.3 ° C-186.5 ° C |
| Sanarium | 60-70 ° C | 40% - 50% | 127.7 ° C-233.1 ° C |
| Turkish bath | 40-50 ° C | 100% | 107.9 ° C-260.2 ° C |
| Media Prov. Verona last 30 years | 29 ° C | 73% | 33.3 ° C |
| Hypothetical summer heat spike | 36 ° C | 70% | 54.2 ° C |
Therefore, despite the fact that in the summer months the climate of the Po Valley is rather sultry, it is definitely warmer inside a sauna.
