| Temperature: | 0.4 degC |
| Pressure: | 875.8 mbar |
| Humidity: | 83 % |
| Wind speed: | 1.1 m/s - 26-m telescope stows at 18 m/s |
| Wind direction: | 142 degrees SE |
| Precipitable water vapour: | 8.3 mm (est.) |
| Saturation vapour pressure: | 0.629 kPa |
| Ambient vapour pressure: | 0.522 kPa |
| Dew point temperature: | -2.1 degC |