Calculate the dew point temperature from air temperature and relative humidity using the Magnus formula.
| Dew Point | Comfort Level |
|---|---|
| < 10°C (50°F) | Dry / Comfortable |
| 10–15°C (50–60°F) | Comfortable |
| 16–18°C (60–65°F) | Slightly Humid |
| 18–21°C (65–70°F) | Humid |
| 21–24°C (70–75°F) | Very Humid |
| ≥ 24°C (75°F) | Extremely Oppressive |
| Temp \ RH | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|
| 10°C | -7 | -3 | 0 | 3 | 5 | 7 | 8 |
| 15°C | -2 | 2 | 5 | 7 | 10 | 12 | 13 |
| 20°C | 2 | 6 | 9 | 12 | 14 | 16 | 18 |
| 25°C | 6 | 10 | 14 | 17 | 19 | 21 | 23 |
| 30°C | 11 | 15 | 18 | 21 | 24 | 26 | 28 |
| 35°C | 15 | 19 | 23 | 26 | 29 | 31 | 33 |
| 40°C | 19 | 24 | 28 | 31 | 33 | 36 | 38 |