The electrical current in Seattle runs on a 120-volt, 60 cycle AC. European and Australian appliances will need an adaptor and a converter while dual-voltage appliances will simply require an adaptor.
The unit of currency is the U.S. Dollar (USD).
When dining out, a 15-18% gratuity is customary.
Taxes' section: Seattle sales tax rate is 9.6%
Located along the coast, Seattle experiences variations in weather as seasons change. The average temperature is 3°C (37.4°F) during winter and 24°C (75.2°F) during summer.
Police, Fire and Ambulance – 911
Most international visitors require a visa prior to entry. Citizens of countries under the Visa Waiver Programme are allowed to travel to the U.S. without a visa.