Guam Island

U.S. Pacific territory island with Chamorro culture

Guam, a U.S. territory in Micronesia, attracts beachgoers, divers and World War II history visitors; travelers explore Tumon Bay resorts, Chamorro food stalls, wartime memorials and coral reefs for snorkeling and diving.

Main image
Wikivoyage banner
Address
13.43103, 144.75311

Guam is an organized, unincorporated territory of the United States located in the western Pacific Ocean and is the largest of the Mariana Islands. The territorial capital is Hagåtña and the island has an indigenous Chamorro heritage.

The island is known for its tropical beaches and resort area at Tumon Bay, scenic coastal lookouts such as Two Lovers Point, and multiple World War II historic sites. Tourism and the U.S. military are significant components of the local economy.

Spain colonized Guam in the 17th century; it was ceded to the United States after the 1898 Spanish-American War, occupied by Japan during World War II and liberated in 1944. Those events shaped much of Guam’s modern history and heritage.

Geographically Guam lies in Micronesia in the western Pacific and is the southernmost and largest island in the Mariana archipelago.

  • Political status: An organized, unincorporated territory of the United States in the western Pacific with the territorial capital at Hagåtña and a significant U.S. military presence.
  • Travel basics: Visitors commonly fly to Guam's Antonio B. Won Pat International Airport and use U.S. dollars; Chamorro culture and World War II sites are central to the island's visitor attractions.

What to See#

  • Tumon Bay: A resort area on Guam's western coast known for high-rise hotels, beaches and shopping, forming the territory's principal tourist district.
  • Two Lovers Point (Puntan Dos Amantes): A dramatic limestone promontory offering panoramic views across the Philippine Sea; it is a well-known lookout and cultural landmark on Guam's northern coast.
  • War in the Pacific National Historical Park: A collection of historic sites and battlefields commemorating the Pacific campaigns of World War II, with preserved fortifications and interpretive exhibits.

Weather & Climate near Guam#

Climate

Guam's climate is classified as Tropical Rainforest - Tropical Rainforest climate with consistently warm temperatures year-round. Temperatures range from 23°C to 30°C. Heavy rainfall (2225 mm/year), wettest in August.

Temperature & Rainfall
Temperature Range
31°
Warmest Month
23°
Coldest Month
Monthly Conditions

January

January is warm with highs of 29°C and lows of 23°C. Significant rainfall (112 mm).

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°

Weather

112 mm
Rainfall
5.6 m/s
Wind
Light Breeze

February

February is warm with highs of 29°C and lows of 23°C. Regular rainfall (93 mm).

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°

Weather

93 mm
Rainfall
5.8 m/s
Wind
Light Breeze

March

March is warm with highs of 29°C and lows of 23°C. Moderate rainfall (76 mm).

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°

Weather

76 mm
Rainfall
5.7 m/s
Wind
Light Breeze

April

April is warm with highs of 30°C and lows of 24°C. Moderate rainfall (79 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

79 mm
Rainfall
5.4 m/s
Wind
Light Breeze

May

May is warm with highs of 30°C and lows of 24°C. Significant rainfall (125 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

125 mm
Rainfall
4.9 m/s
Wind
Light Breeze

June

June is the warmest month with highs of 30°C and lows of 25°C. Significant rainfall (151 mm).

Comfort

28°
Feels Like Warm
28°C
Temperature
25° 31°

Weather

151 mm
Rainfall
4.6 m/s
Wind
Light Breeze

July

July is warm with highs of 30°C and lows of 24°C. Heavy rain (243 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

243 mm
Rainfall
3.8 m/s
Wind
Light Breeze

August

August is warm with highs of 30°C and lows of 24°C. The wettest month with heavy rain (359 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

359 mm
Rainfall
4.3 m/s
Wind
Light Breeze

September

September is warm with highs of 30°C and lows of 24°C. Heavy rain (317 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

317 mm
Rainfall
3.4 m/s
Wind
Light Breeze

October

October is warm with highs of 30°C and lows of 24°C. Heavy rain (301 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

301 mm
Rainfall
3.8 m/s
Wind
Light Breeze

November

November is warm with highs of 30°C and lows of 24°C. Heavy rain (219 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 30°

Weather

219 mm
Rainfall
5.1 m/s
Wind
Light Breeze

December

December is warm with highs of 29°C and lows of 24°C. Significant rainfall (150 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
24° 29°

Weather

150 mm
Rainfall
5.7 m/s
Wind
Light Breeze