Guatemala can be very inexpensive. However, there are good restaurants and tempting items to buy that can upset even the best-planned budget.
Restaurant meals run between $3 and $5 for breakfast and lunch and more for dinner. The trip across the lake to Panajachel or San Pedro costs around $5 round-trip.
If you watch your spending, prepare food at home, walk or take the Q3-5 transportation around town, you can get by on about $50 per week (excluding housing). However, you should budget more if you are bringing a family.