Many beach bars and beach clubs in Montenegro now offer free Wi-Fi for customers, especially the larger or more upscale venues on popular stretches like Budva's Slovenska Plaza, Jaz, and Becici. Expect the password to be written on a chalkboard, on a card with your drinks order, or just ask the staff.
Signal quality can be inconsistent — a busy August afternoon with dozens of connected devices, or a remote location like a cove near Przno, may mean slow speeds or no coverage at all. Montenegro has solid 4G coverage along most of the coast, so a local SIM card or an EU roaming plan is the more reliable backup for anything important.
If working remotely from the beach is a priority, it is worth checking reviews for specific bars before you commit to a full-day sunbed booking — a few premium clubs have invested in stronger infrastructure specifically to attract digital nomads.