| Temperature: | 28.7 degC |
| Pressure: | 867.6 mbar |
| Humidity: | 24 % |
| Wind speed: | 0.7 m/s - 26-m telescope stows at 18 m/s |
| Wind direction: | 311 degrees NW |
| Precipitable water vapour: | 13.9 mm (est.) |
| Saturation vapour pressure: | 3.938 kPa |
| Ambient vapour pressure: | 0.945 kPa |
| Dew point temperature: | 6.1 degC |