The hotel's rates are fixed in US dollars but they are legally obliged to charge all credit cards in Mexican pesos. Guests can settle items billed in dollars with US dollar cash or travelers checks at the same exchange rate. Meals and other incidentals are charged in pesos. Cancellations Cancellation within 4 days of arrival will incur a charge of one night. Climate The altitude means that you'll need to bring a sweater for most of the year, though you may only use it in the evenings.
Rain falls mainly in the summer, often for an hour or so in the afternoon.
None of this precludes some serious sightseeing, and if the rain does set in for the day then head for the wonderful museums.