A wind direction indicator must be of a conspicuous colour or colours, illuminated at night, in the shape of a truncated cone and visible to aircraft flying at an altitude of 1,000 feet.
A wind direction indicator must also conform to the following requirements:
- At aerodromes that do not have prepared runways, the wind direction indicator is usually mounted on or near some conspicuous building or in the vicinity of the general aircraft parking area.
- Runways greater than 1,200 metres in length will have a wind direction indicator for each end of the runway. It will be typically located adjacent to the touchdown zone, 60 metres outward from the edge of the runway, and clear of the obstacle free zone.
- Runways 1,200 m in length and shorter will have a wind direction indicator located centrally on the aerodrome or near each end of the runway, typically positioned in proximity to the aiming point markings.
At aerodromes certified as airports, a dry standard wind direction indicator will react to wind speed as follows:
| Wind Speed | Wind Indicator Angle |
| 15 knots or above | Horizontal |
| 10 knots | 5° below horizontal |
| 6 knots | 30° below horizontal |
