I am no looking at leaving NYC sometime in January and spending a month in Mexico having fun and then a month in Guatemala studying Spanish in th alpine region where I think the rainy season is not as strong. Then head south ....
I have been researhing weather issues, because I cannot make the standard departure window of Sept-Dec. It seems that Central Am doesn't reaaly get hit with heavy rain/humidity until May/June/July. Others here have said that even during the rainy season it is just a matter of waiting out passing storms during the day.