Main Facts About Guam

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Currency
The currency on Guam is the US Dollar. Banks and ATMs are available throughout the island.
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Language
The Chamorro language is an Austronesian language that has, over time, come to incorporate many Spanish words. The word Chamorro is derived from Chamorri, or Chamoli, meaning “noble.” English and Chamorro are the official languages.
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Weather
In Guam, the climate is tropical, hot and humid all year round. Temperatures are very stable, and are around 30/32 °C during the day and 24/25 °C at night, all year round. Here are the average temperatures in Tamuning.
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Power Plugs
Guam uses a two, flat pin adapter plug that is used in North America. Adapter plugs allow electrical connections up to 240 volts. An adapter plug does NOT change the current or voltage (this requires a converter) unless your appliance is dual voltage.
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Population
The current population of Guam is 171,483 as of Tuesday, May 3, 2022, based on Worldometer elaboration of the latest United Nations data.
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Fun Fact
Surprisingly, there is no sand on the island of Guam. The beaches are covered in coral instead of sand, and paved roads in Guam are made by mixing coral and cement.