What tools can sailors use to measure wind direction accurately?

Sailors can accurately measure wind direction using a wind vane and an anemometer. A wind vane is specifically designed to indicate the direction from which the wind is blowing. It typically features a rotating arm that points directly into the wind, allowing sailors to gauge wind direction effectively.

The anemometer, while primarily used to measure wind speed, can also provide contextual information about the wind conditions that may aid sailors in assessing the overall wind environment. When used in conjunction, these tools give a clear picture of both speed and direction, which are critical for optimizing sailing performance and safety.

Other choices may include tools that serve different functions, such as measuring temperature or atmospheric pressure, or tools that help with navigation rather than wind measurement. Thus, relying on a wind vane and anemometer is essential for sailors to achieve accurate measurements of wind direction.