| Temperature: | 3.2 degC |
| Pressure: | 870.5 mbar |
| Humidity: | 62 % |
| Wind speed: | 1.1 m/s - 26-m telescope stows at 18 m/s |
| Wind direction: | 155 degrees SSE |
| Precipitable water vapour: | 7.5 mm (est.) |
| Saturation vapour pressure: | 0.769 kPa |
| Ambient vapour pressure: | 0.477 kPa |
| Dew point temperature: | -3.4 degC |