Best month to go around Cape Horn on a cruise

[Grammyluvs]

My husband and I are looking at South America/Antarctica tours. I have heard weather plays a big part in determining if you can go around Cape Horn. Any suggestions or has anyone researched to find the best month. The Horn is our main interest and I know the weather is fickle and there are no guarantees. 

[vakamalua]

We went around the Horn the last week of January 2020.  The seas were calm--as was the trip back & forth across Drake's Passage to Antarctica.  As you said, "no guarantees."  

[scottjeanne]

We stopped at Cape Horn last month.  Very rocky Zodiac ride too and from but the expedition crew was superb.  Out of ten times around the horn this season, they said this was only the second time they could get to land.  No guarantees.