Abstract
The High Altitude Water Cherenkov (HAWC) observatory has a wide instantaneous field of view of 2 sr and a duty cycle >95 %, which allows it to scan 2/3 of the sky every day. These capabilities make HAWC an ideal instrument for monitoring the variability of blazars at TeV energies. A preliminary study based on simulations for detecting possible periodic modulation from a blazar is presented.
