GuamIran: Visa required

GuamIran

Do United States passport holders need a visa for Iran?

Visa required

Yes. United States passport holders need to obtain a visa in advance before travelling to Iran.

A visa must be obtained in advance, typically from an embassy or consulate, before travel.

Guam does not issue its own passport; residents travel on a United States passport. See the United States passport.

Source: iranianvisa.com (checked September 16, 2026).

RequirementVisa required

Maximum stayLength of stay varies

ScopeTourism, ordinary passport

Action before travelYes, arrange in advance

Data as of2026-10-21

Distance9,437 km, straight line (~11h 36m nonstop)

Visa-free access to Iran214 of 242 nationalities tracked

Travelling the other way? Iran passport holders visiting Guam: Visa required.

Visa-free alternatives near Iran

United States passport holders can visit these nearby destinations without a visa in advance:

Other visa-free destinations for United States passport holders

See all United States destinations →

Frequently asked questions

Do United States passport holders need a visa for Iran?

Yes. United States passport holders need to obtain a visa in advance before travelling to Iran.

How far is Iran from Guam?

About 9,437 km in a straight line, roughly ~11h 36m nonstop by air.

What currency is used in Iran?

Iranian rial (IRR).

What is the emergency number in Iran?

110 / 115 / 125.

What time zone is Iran in?

Tehran (UTC+3:30).

What is the nearest airport to Tehran?

Mehrabad International Airport (THR), about 12 km away.

How many countries can enter Iran without a visa?

214 of the 242 nationalities this site tracks can enter Iran visa-free, with a visa on arrival, or with an eTA.

What nearby countries can United States passport holders visit without a visa instead of Iran?

Kuwait, Armenia, Georgia, Qatar, United Arab Emirates, Syria.

Visa rules change frequently and can depend on your specific circumstances. This site is compiled from public government sources and is provided for general information only. Always confirm requirements with the official immigration authority or a consulate of your destination before you travel.

About Guam

Guam is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, and the most populous village is Dededo. It is the westernmost point and territory of the United States, reckoned from the geographic center of the U.S. In Oceania, Guam is the largest and southernmost of the Mariana Islands and the largest island in Micronesia. As of September 2026, its population was 170,476. Chamorros are its largest ethnic group, but a minority on the multiethnic island. The territory spans 210 square miles and has a population density of 775 per square mile (299/km2).

CapitalAgana

RegionMicronesia

Population169K

Area549 km²

CurrencyUnited States dollar (1 USD ≈ 1.00 USD)

LanguagesChamorro, English, Spanish

Calling code+1671

Drives on theright

TimezoneGuam (UTC+10)

Nearest airportAntonio B. Won Pat International Airport (GUM), 5 km

Emergency number911

Income levelHigh income

GDP per capita$41,833 (2022)

Tourist arrivals328K (2020)

Climate in Agana

Warmest May, coolest February, driest March, sunniest May. Best time to visit: January, February, March, April, May, June, December.

Monthly climate normals for Agana, 2020
Month	High	Low	Rainfall	Sunshine
January	28.5°C	24.3°C	98mm	326h
February	28.5°C	24.2°C	134mm	299h
March	29.7°C	24.4°C	38mm	346h
April	30.2°C	24.9°C	66mm	356h
May	30.7°C	25.5°C	115mm	362h
June	30.7°C	25.4°C	120mm	356h
July	30.3°C	25°C	253mm	340h
August	30°C	24.8°C	426mm	302h
September	30°C	24.7°C	580mm	276h
October	29.5°C	24.6°C	520mm	260h
November	29.8°C	25.1°C	211mm	301h
December	29.3°C	25.3°C	150mm	317h

Avg. high/low, °C (left axis) Rainfall, mm (bar maxes out at 250mm/month)

Daily normals for 2020. Hover a month for exact figures.

Travel guide

Guam is an island in the western Pacific Ocean, about three-quarters of the way from Hawaii to the Philippines. An unincorporated territory of the United States of America, Guam gets most of its visitors from East Asia, especially Japan.

Full source list on About.

About Iran

Iran, officially the Islamic Republic of Iran, and historically known as Persia, is a country in West Asia. It borders Iraq to the west; Turkey, Azerbaijan, and Armenia to the northwest; the Caspian Sea to the north, Turkmenistan to the northeast; Afghanistan to the east; Pakistan to the southeast; and the Gulf of Oman and the Persian Gulf to the south. With a population of over 92 million, Iran ranks 17th globally in both geographic size and population. It is divided into five regions with 31 provinces. Tehran is the nation's capital and largest city and serves as its primary economic center.

CapitalTehran

RegionSouthern Asia

Population92.4M

Area1,648,195 km²

CurrencyIranian rial (1 USD ≈ 1731936.86 IRR)

LanguagesPersian (Farsi)

Calling code+98

Drives on theright

TimezoneTehran (UTC+3:30)

Nearest airportMehrabad International Airport (THR), 12 km

Emergency number110 / 115 / 125

UNESCO sites38

Income levelUpper middle income

GDP per capita$3,924 (2025)

Tourist arrivals1.6M (2020)

Climate in Tehran

Warmest July, coolest January, driest June, sunniest July. Best time to visit: May, September, October.

Monthly climate normals for Tehran, 2020
Month	High	Low	Rainfall	Sunshine
January	8°C	-0.8°C	32mm	255h
February	11.6°C	1.5°C	98mm	243h
March	16.9°C	6.3°C	50mm	278h
April	19°C	9.2°C	103mm	298h
May	29.5°C	16.9°C	16mm	379h
June	35.6°C	22.5°C	0mm	392h
July	36.6°C	25.4°C	1mm	396h
August	35.1°C	23.4°C	0mm	393h
September	31.1°C	19.8°C	2mm	335h
October	23.6°C	12°C	18mm	324h
November	15.1°C	7.8°C	90mm	212h
December	8.4°C	1.3°C	42mm	242h

Avg. high/low, °C (left axis) Rainfall, mm (bar maxes out at 250mm/month)

Daily normals for 2020. Hover a month for exact figures.

Travel guide

Iran, formerly Persia, can be considered part of the Middle East or Central Asia; indeed the Persian Empire was the dominant Central Asian power for many centuries. The wellspring of one of the world's great civilizations, Iran is a country of striking natural beauty and gorgeous tiled mosques. Once the centre of a pro-Western monarchy, it became an Islamic Republic in 1979, a modern Islamic theocracy whose laws are based on Ja'fari Shia Islam, and since then, its history has been tumultuous.

UNESCO World Heritage Sites

Alamūt Castle and Related Fortifications
Armenian Monastic Ensembles of Iran
Bam
Bam Citadel
Behistun
Chogha Zanbil
Cultural Landscape of Hawraman/Uramanat
Dasht-e Lut
Ecbatana
Golestan Palace

Full source list on About.