Euros- they can be exchanged in the US at your local bank or in Europe at the airport.
No, they drive on the right side of the road just like the US. The steering wheel is also the same as the US.
It will probably be around 80 degrees. Weather is warmer South of Portugal vs the North.
Their native language is Portuguese. However, most people in Portugal learn English as a secondary language.
In Portugal, the power plugs and sockets are of type F. This socket also works with plugs C and E. The standard voltage is 230 V and the standard frequency is 50 Hz. You can plug in your appliances in Portugal if the voltage in your country is between 220 – 240. **Text Chantel for EXACT adaptor and converter you need**