Originally Posted by RVGRINGO

Welcome. To prepare for 'winter' at Lake Chapala, you will want a sweater or light jacket for evenings or early mornings in December and January, long sleeves and long pants and maybe even socks for your sandals. Not much more. Inside, when you get up in the morning it may be 48-50F outside but your house will be holding residual heat at 60-65F. As the day progresses, it will warm to a comfortable temperature inside and out. Travel light; you can always buy a wool vest if you find yourself out unprepared on the town square; the vendors magically appear as the temperature drops.