Voltage: Portugal uses 230V electrical supply at 50Hz frequency, same as most of Europe.
Plug Types: Type C (European 2-pin) and Type F (European 2-pin with earth clips - "Schuko") are standard. These are the same plugs used throughout continental Europe.
US/UK Visitors: North American devices (110V) and UK devices (Type G plugs) require adapters. Most modern electronics (phones, laptops, cameras) have dual-voltage capability (check device specifications showing "110-240V") and only need plug adapter, not voltage converter.
Where to Buy Adapters: Purchase at airport shops, electronics stores in city center, hotels (often available at reception), or bring from home. Airport prices higher but convenient. Multi-country universal adapters work well if visiting multiple destinations.
USB Charging: Most modern hotels and accommodations provide USB charging ports. Many restaurants and cafes offer USB charging at tables. Public spaces increasingly have charging stations.
Recommendation: Bring universal travel adapter with multiple plug types and USB ports for charging multiple devices simultaneously. Check hotel amenities before traveling.