Forecast by:  | 12 Sep Sat | 13 Sep Sun | 14 Sep Mon | 15 Sep Tue | 16 Sep Wed | 17 Sep Thu | 18 Sep Fri |
|---|---|---|---|---|---|---|---|
| Temp (°C) | 31° 25° | 31° 26° | 31° 26° | 31° 25° | 31° 25° | 32° 25° | 32° 26° |
| Precipitation | 63% | 61% | 73% | 81% | 80% | 88% | 86% |
| Humidity | 82% | 80% | 79% | 81% | 80% | 82% | 78% |
| Wind | 10 km/h | 13 km/h | 12 km/h | 10 km/h | 18 km/h | 33 km/h | 32 km/h |
Best time to visit Guam
The best time to visit Guam is January to April, when conditions are generally dry, though tropical storms or typhoons can still occur. May and June are transitional months with more showers, while July to November are least favourable because of frequent or heavy rain and peak typhoon season; December remains relatively wet.
JanuaryTemp (°C)27°Rain (mm)69Sun Hours8Dry Days11
January is warm and humid, around 24-30°C, with trade winds and generally dry conditions. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
FebruaryTemp (°C)27°Rain (mm)53Sun Hours8Dry Days13
February is warm and humid, around 24-30°C, with trade winds, brief showers and generally dry conditions. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
MarchTemp (°C)27°Rain (mm)46Sun Hours8Dry Days12
March is warm and humid, around 24-30°C, with trade winds and occasional showers. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
AprilTemp (°C)28°Rain (mm)57Sun Hours9Dry Days13
April is warm and humid, around 24-30°C, with trade winds and generally dry weather. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
MayTemp (°C)28°Rain (mm)71Sun Hours11Dry Days9
May is warm and humid, around 24-30°C, with showers and a seasonal shift towards rainier conditions. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
JuneTemp (°C)29°Rain (mm)95Sun Hours11Dry Days4
June is warm and humid, around 24-30°C, with showers and transitional rainfall. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
JulyTemp (°C)29°Rain (mm)181Sun Hours9Dry Days2
July is hot and humid, around 25-31°C, with frequent rain and squalls. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
AugustTemp (°C)28°Rain (mm)194Sun Hours8Dry Days3
August is hot and humid, around 25-31°C, with heavy rain and frequent squalls. It is peak typhoon season, and a storm can cancel flights and wreck the trip.
SeptemberTemp (°C)29°Rain (mm)211Sun Hours8Dry Days3
September is hot and humid, around 25-31°C, with heavy rain and frequent squalls. It is peak typhoon season, and a storm can cancel flights and wreck the trip.
OctoberTemp (°C)28°Rain (mm)211Sun Hours7Dry Days2
October is hot and humid, around 25-31°C, with heavy rain and frequent squalls. It is peak typhoon season, and a storm can cancel flights and wreck the trip.
NovemberTemp (°C)28°Rain (mm)102Sun Hours6Dry Days6
November is hot and humid, around 25-31°C, with frequent rain and squalls. It is peak typhoon season, and a storm can cancel flights and wreck the trip.
DecemberTemp (°C)28°Rain (mm)75Sun Hours7Dry Days9
December is warm and humid, around 24-30°C, with showers and generally wet conditions. Tropical storms or typhoons can occur this month, and a storm can cancel flights and wreck the trip.
Sources: en.wikivoyage.org
Valley of the Latte Jungle Riverboat Adventure Cruise
Cost: From 118 USD · Duration: 4 hours · ★ 4.8 (184 reviews)
Explore the jungles along the Talofofo and Ugum Rivers on this half-day tour. Visitors of all ages, from all over the world, will be greeted by our friendly staff at the Valley of the Latte Main Staging area near the Gift Shop. Fun and experienced guides will welcome you onto one of our Adventure River Boats. The trip begins as the boat leaves the
Taotao Tasi the Beach Dinner Show in Guam
Cost: From 69.24 USD · ★ 4.6 (87 reviews)
Join Guam's most spectacular and unique show. You will see beautiful performers, gorgeous costumes, and amazing fire dancers. This is the only dinner show on the beach. This is Guam’s premier island show on a huge 150 foot stage. The show has the biggest cast on Guam with 30 performers (other shows have 4 or 5). Witness a multi-million dollar profe
Guam's Best Shore Diving! Beginner and Advanced Dives
Cost: From 90 USD · Duration: 2.5 hours · ★ 5.0 (66 reviews)
Enjoy one of the best dives on Guam right in front of our beach shop in Apra Harbor! Dogleg Reef is famous for its calm waters with numerous coral reefs and tropical fish surrounding a sand bottom with 80 year old artifacts from WWII scattered about at 75-80 feet There are resident Green Sea and Hawksbill turtles in the area so they are a common si
Guam's 5* Guided Snorkeling/Freediving Tour!
Cost: From 60 USD · Duration: 1.5 hours · ★ 4.9 (46 reviews)
Guam Ocean Adventures is located close to some of Guam's most pristine reefs! Enjoy a snorkeling or Freediving tour with your family or friends! Our guides will show you marine life in it's natural habitat.. * Enjoy snorkeling or Freediving your way with a small group! * For groups of up to 6 people, ages 8-65. * Includes mask, snorkel, boots, safe
Ultimate Off-Road Adventure & Resort Escape
Cost: From 115 USD · ★ 4.9 (42 reviews)
Experience more than just an off-road tour — enjoy a complete Guam adventure in the heart of the island at LeoPalace Resort. Our exclusive experience combines thrilling off-road driving through jungle trails, scenic mountain views, and Guam’s longest and highest bridge. After your ride enjoy premium resort amenities including pool access, a water s
BIG Sunset Cruise - Dinner & Dolphin Watching in Guam
Cost: From 62.34 USD · ★ 4.4 (39 reviews)
Enjoy the best night of your Guam trip aboard the BIG Sunset Dinner Cruise, Guam’s only optional tour that presents an ocean-cruising dinner cruise. Experience Guam’s beautiful clear waters, dolphins and more. *Launching from one of these sites: Agat Marina, Apra Harbor or Hagatna Boat Basin. *The boat will not wait for late guests. You will be cha
Valley of the Latte Kayaking Adventure Tour with Lunch No Transportation
Cost: From 118 USD · Duration: 3 hours · ★ 4.4 (27 reviews)
Start this 3-hour, small-group (maximum group size of 30) tour at the Visitor Center where guests are welcomed, briefed about the Adventure Park and it’s tours, and greeted by Coast Guard Certified captains and crews who will share the story of the river flora, fauna, and local wildlife. After the safety briefings, guests will be provided with life
Karera Show at Sand Castle Guam
Cost: From 105.27 USD · Duration: 1 hour · ★ 4.5 (24 reviews)
Over 40 of the world’s top designers and show creators—directors of Cirque du Soleil, Franco Dragone, and legendary tours for Madonna, U2, and the Rolling Stones—have joined forces to create Guam’s most breathtaking island-themed spectacle. The Karera Show combines the magic of the Pacific with world-class technology, including a massive IMAX-scale
Experience Scuba Diving - No Certification Needed!
Cost: From 90 USD · Duration: 2.5 hours · ★ 5.0 (22 reviews)
Even if you are not a swimmer we will safely guide you through your first time diving in the ocean! Our diving instructors have years of experience introducing people to the wonders of the ocean! Groups of 4 per guide let you get the best view of our beautiful reefs full of tropical fish! Green Sea Turtles are a common sight!
Ultimate Guam Self-Guided Driving Audio Tour
Cost: From 29.99 USD · ★ 3.9 (20 reviews)
Recommended: Purchase one tour per car, not per person. Everyone listens together! Welcome to Guam! This tiny island has a big history — spanning over 4 millennia! Our tour today will circle the entire island while stepping back into this rich past. We’ll explore everything from the ancient Chamorro culture to WWII battlegrounds… as well as some be
Brief
- Try local Chamorro specialties such as kelaguen, red rice, finadene sauce, and fresh coconut-based dishes.
- The 32nd Annual Guam International Coastal Cleanup is scheduled for September 19, 2026, with activities potentially affecting access to participating beaches and coastal areas (
guampdn.com).
Safety and health
- Dengue is transmitted by mosquitoes in Guam. Use repellent, wear long sleeves where practical, and stay in screened or air-conditioned accommodation (
cdc.gov).
- Hiking, swimming, and exposure to freshwater or muddy ground can increase the risk of leptospirosis. Avoid swallowing untreated water, cover cuts, and seek medical care for fever or severe muscle aches after exposure (
wikivoyage.org).
- Guam Memorial Hospital remains the main public hospital but has infrastructure limitations following typhoon damage. Visitors requiring complex or urgent care may be treated at Guam Regional Medical City; travel insurance with medical evacuation coverage is advisable (
Recent News
- Guam is expanding its missile and counter-drone defenses, including Patriot, THAAD, and other systems. This is part of a longer-term military buildup and does not indicate a reported tourist restriction, but visitors should expect continued military activity near defense installations and obey access controls (
stripes.com).
- “Frozen: The Broadway Musical” is being staged at the University of Guam Calvo Field House through September 6, 2026, which may increase local demand for accommodation and evening transport around the venue (
