If you are in Guatemala temporarily or in transit, you can find points where you can connect to a free Wi-Fi network.
Locations:
San Marcos
Center for Returnees in Tecún Uman, Ayutla, San Marcos
Access the location on the map here.
Bus Terminal in Tecún Umán, San Marcos
Access the location on the map here.
Izabal
At the bus station at Cruce La Ruidosa on route CA9 in Morales, Izabal
Access the location on the map here.