Mid Janurary Weather and is that Beginning of Low-Season? Started November 1, 2011 · 8,751 views · 2 posts markmark November 1, 2011 Just want to know what the weathers gunna be like in Mid Jan. And is that the beginning of the low season rates? Advertisement Planning your trip? Explore our comprehensive travel guide for up-to-date info on Puerto Vallarta. View Travel Guide kcowan November 5, 2011 Low season is April first through November first. You might get a deal the first 2 weeks in January because it is always slow after the last 2 weeks of December.