What is the maximum headwind for CAT II operation?

For Category II (CAT II) operations, the maximum allowable headwind is 25 knots. This limit is established to ensure safe landing under low visibility conditions, where precision and control are paramount. Headwinds assist in reducing ground speed during the approach and landing phases, but excessive headwind can pose challenges to aircraft handling, especially when considering factors like wind shear and gusts. Therefore, setting the maximum headwind limit at 25 knots helps to facilitate safe and controlled operations while still allowing pilots to navigate and land the aircraft effectively in tricky conditions.