March is a dry month in Antigua. The high during this time is 82º and the low is 58º.
Antigua is a small walkable town. We recommend using Uber or tuk-tuks for rides. Most local Uber rides were $3-$5. Tuk tuk's, local 3 wheel taxis, are helpful for getting back and forth within Antigua (Quetzales only).
The currency is Guatemalan Quetzal. Most places accept major credit cards, however we do recommend having some cash (Quetzal) on hand to pay for local shopping and tuk-tuk rides. Some hotels will exchange money and there is a central bank in the center of Antigua.