Your plugs & sockets
Voltage
120V
Frequency
60Hz
Plugs
A, B
Plugs & sockets in Sao Tome and Principe
Voltage
230V
Frequency
50Hz
Plugs
C, F
Costa Rica to Sao Tome and Principe: Complete Plug & Adapter Guide (2026) Adapter Needed
If you're heading to Sao Tome and Principe from Costa Rica, it's worth checking the power situation before you pack. Different countries use different outlet types and electrical standards, so your devices may not plug in directly when you arrive.
Your Costa Rica plugs (Type A, B) won't fit Sao Tome and Principe's outlets (Type C, F). You'll want to grab a universal travel adapter or one specifically designed for Sao Tome and Principe before you depart.
The electrical standards differ significantly: Costa Rica operates at 120V/60Hz and Sao Tome and Principe at 230V/50Hz. For single-voltage appliances (hair straighteners, kettles, etc.), this mismatch could damage your device or even be a safety hazard. Always verify your device's voltage rating before plugging in.
A universal travel adapter with multiple plug configurations is a smart investment if you travel frequently. For Sao Tome and Principe specifically, look for one that supports Type C/F outlets. USB charging ports built into the adapter are a nice bonus.


