How rough are the seas around Cape Horn in January?

The seas around Cape Horn are notoriously rough throughout the year, but they are especially rough in January, which falls during the Southern Hemisphere's summer. During this time, the area experiences strong winds, high waves, and frequent storms. The average wave height in January is around 10 meters (33 feet), and waves can reach heights of up to 20 meters (66 feet) or more. The winds can also be extremely strong, with gusts of up to 150 kilometers per hour (93 miles per hour). These conditions can make sailing around Cape Horn extremely hazardous, and it is not recommended for inexperienced sailors.