Now that you've decided to visit Tuxtla Gutierrex, let me give you some information about the climate here and what type of clothing you will need to pack for your visit. The city of Tuxtla Gutierrez fills a long, low valley and is usually described in guide books as being terribly hot and humid. In fact, the climate is really quite comfortable. For those of us who have endured long hot summers in such places as Houston or New York City the temperatures here are moderate. There is not much difference between the wet and dry seasons other than the rain itself.
Mornings are cool enough year round to require blankets.
Some afternoons do get hot for a couple of hours. This is a good time to stay inside for a traditional siesta or to sit in the shade of one of the many tree-filled parks. Locals usually keep a bottle of cold purified water handy in the afternoons, whatever they are doing. But the heat lasts only a short time. Not like Houston, where it can reach 107 degrees every afternoon for weeks and never drop below 85 at the coolest part of the day.