✓ Updated February 2026
Weather data and travel information verified current
When is the Best Time to Visit Guam, USA?

Quick Answer:
December to May ushers in Guam's dry season, offering the most elegant conditions for exploring this Pacific gem. Imagine waking to the gentle caress of a warm breeze, the sun painting the sky in hues of rose and gold as you stroll along pristine beaches. This period avoids the heavier rains, allowing for uninterrupted enjoyment of the island's vibrant culture and stunning natural beauty, from the bustling markets to the serene, crystal-clear waters perfect for diving. It's a time when the island feels alive with possibility, inviting you to create unforgettable memories under its benevolent skies.
Airport Code
GUM
Coordinates
13.44°, 144.76°

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Top Things to Do
Sunrise Over Two Lovers Point
Witness the dawn paint the sky in fiery hues from the iconic Two Lovers Point, a place steeped in romantic legend. The dramatic cliffs plunging into the turquoise Pacific offer a breathtaking spectacle, especially when the early morning light illuminates the vast ocean.
Snorkeling the Coral Gardens of Piti Bay
Discover a vibrant underwater world teeming with colorful fish and intricate coral formations in the protected waters of Piti Bay. Rent a kayak or join a local tour to paddle out to the best spots, where the visibility is often crystal clear, revealing a kaleidoscope of marine life.
Savoring Kelaguen at a Local Chamorro Feast
Immerse yourself in authentic Chamorro culture by indulging in kelaguen, a zesty dish of marinated chicken, shrimp, or fish, often prepared at community gatherings. Look for local fiestas or ask a resident for recommendations to find the most authentic and flavorful preparations, often served with red rice.
Exploring the Latte Stone Park and Museum
Step back in time at the Latte Stone Park, where ancient stone pillars, known as latte, stand as silent sentinels of Guam's pre-colonial past. The adjacent museum offers fascinating insights into the island's rich history and the ingenuity of the Chamorro people.
💡 Travel Tip: For the best value on hotels during this season, check current rates on Trip.com.
Essential Travel Tips
While credit cards are widely accepted, always have some US dollars in cash for smaller vendors, local markets like the Chamorro Village night market, or smaller island hopping tours. ATMs are plentiful, but it's good to have backup for those spontaneous purchases.
Renting a car is highly recommended for exploring Guam at your own pace, especially if you want to visit more remote beaches or historical sites outside of Tumon. Book in advance, especially during peak season, and be aware that driving is on the right side of the road.
Embrace the 'Håfa Adai' spirit! This Chamorro greeting means 'hello' and is more than just a word; it's a way of life. A simple 'Håfa Adai' when interacting with locals goes a long way and shows respect for their culture.
Don't leave Guam without trying kelaguen! It's a local delicacy made with chopped cooked meat (chicken, shrimp, or fish) mixed with lemon juice, coconut, onions, and peppers. It's often served with titiyas, a local flatbread, and is a must-try at any fiesta or local eatery.
Pack light, breathable clothing and plenty of swimwear. Guam is humid and warm year-round, so quick-drying fabrics are your best friend. Don't forget reef-safe sunscreen – it's crucial for protecting the delicate coral reefs when you're enjoying the beautiful beaches and snorkeling spots.
While Guam is generally safe, always be mindful of your surroundings, especially in crowded tourist areas. Never leave valuables unattended on the beach, and be cautious when swimming in the ocean, paying attention to any posted warning flags about currents.
💡 Travel Tip: If you're planning your trip, it's worth checking flight prices on Trip.com before you decide.
Weather Details
Monthly Weather Data Table
| Month | High (°C) | Low (°C) | High (°F) | Low (°F) | Rainfall (mm) | Rain Days | Daylight (h) |
|---|---|---|---|---|---|---|---|
| Jan | 30°C | 24°C | 86°F | 75°F | 120mm | 12 days | 11.2h |
| Feb | 30°C | 24°C | 86°F | 75°F | 100mm | 10 days | 11.4h |
| Mar | 31°C | 24°C | 88°F | 75°F | 90mm | 9 days | 12.1h |
| Apr | 31°C | 25°C | 88°F | 77°F | 110mm | 11 days | 12.5h |
| May | 31°C | 25°C | 88°F | 77°F | 160mm | 14 days | 12.9h |
| Jun | 31°C | 26°C | 88°F | 79°F | 210mm | 16 days | 13.1h |
| Jul | 31°C | 26°C | 88°F | 79°F | 270mm | 18 days | 13.0h |
| Aug | 31°C | 26°C | 88°F | 79°F | 300mm | 19 days | 12.6h |
| Sep | 31°C | 25°C | 88°F | 77°F | 280mm | 18 days | 12.1h |
| Oct | 31°C | 25°C | 88°F | 77°F | 200mm | 16 days | 11.6h |
| Nov | 31°C | 25°C | 88°F | 77°F | 170mm | 14 days | 11.2h |
| Dec | 30°C | 24°C | 86°F | 75°F | 140mm | 13 days | 11.0h |
Guam, USA Month by Month: Complete Guide
Planning your trip to Guam, USA? Here's what to expect each month:
Jan in Guam, USA
Weather
30°C°C / 86°F°F
12 days rainy days • 120mmmm
What to Expect
Winter season with cooler temperatures. Fewer tourists but some attractions may have limited hours.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Feb in Guam, USA
Weather
30°C°C / 86°F°F
10 days rainy days • 100mmmm
What to Expect
Late winter, beginning to warm up. Good for budget travelers seeking lower prices.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Mar in Guam, USA
Weather
31°C°C / 88°F°F
9 days rainy days • 90mmmm
What to Expect
Spring begins, mild weather. Shoulder season with moderate crowds.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Apr in Guam, USA
Weather
31°C°C / 88°F°F
11 days rainy days • 110mmmm
What to Expect
Spring in full bloom. Pleasant temperatures and growing tourist activity.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
May in Guam, USA
Weather
31°C°C / 88°F°F
14 days rainy days • 160mmmm
What to Expect
Late spring, excellent weather. One of the best times to visit for most travelers.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Jun in Guam, USA
Weather
31°C°C / 88°F°F
16 days rainy days • 210mmmm
What to Expect
Early summer, warm and sunny. Peak season begins, book accommodations early.
Crowd Level
🔴 High - Peak tourist season, book early
Jul in Guam, USA
Weather
31°C°C / 88°F°F
18 days rainy days • 270mmmm
What to Expect
Peak summer season. Hot weather and highest tourist crowds. Most expensive time.
Crowd Level
🔴 High - Peak tourist season, book early
Aug in Guam, USA
Weather
31°C°C / 88°F°F
19 days rainy days • 300mmmm
What to Expect
Peak summer continues. Very crowded but great weather for outdoor activities.
Crowd Level
🔴 High - Peak tourist season, book early
Sep in Guam, USA
Weather
31°C°C / 88°F°F
18 days rainy days • 280mmmm
What to Expect
Early fall, shoulder season. Weather still good, crowds decreasing. Great value.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Oct in Guam, USA
Weather
31°C°C / 88°F°F
16 days rainy days • 200mmmm
What to Expect
Fall season, mild temperatures. Lower crowds and good prices. Comfortable for sightseeing.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Nov in Guam, USA
Weather
31°C°C / 88°F°F
14 days rainy days • 170mmmm
What to Expect
Late fall, cooler weather. Off-season begins, significant discounts available.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Dec in Guam, USA
Weather
30°C°C / 86°F°F
13 days rainy days • 140mmmm
What to Expect
Winter season, holiday atmosphere. Festive but can be cold. Mixed crowds.
Crowd Level
🔴 High - Peak tourist season, book early
All Things to Do in Guam, USA
Sunrise Over Two Lovers Point
attractionWitness the dawn paint the sky in fiery hues from the iconic Two Lovers Point, a place steeped in romantic legend. The dramatic cliffs plunging into the turquoise Pacific offer a breathtaking spectacle, especially when the early morning light illuminates the vast ocean.
Best time: Nov-May
Snorkeling the Coral Gardens of Piti Bay
natureDiscover a vibrant underwater world teeming with colorful fish and intricate coral formations in the protected waters of Piti Bay. Rent a kayak or join a local tour to paddle out to the best spots, where the visibility is often crystal clear, revealing a kaleidoscope of marine life.
Best time: Nov-May
Savoring Kelaguen at a Local Chamorro Feast
foodImmerse yourself in authentic Chamorro culture by indulging in kelaguen, a zesty dish of marinated chicken, shrimp, or fish, often prepared at community gatherings. Look for local fiestas or ask a resident for recommendations to find the most authentic and flavorful preparations, often served with red rice.
Best time: Year-round, especially during local fiestas
Exploring the Latte Stone Park and Museum
culturalStep back in time at the Latte Stone Park, where ancient stone pillars, known as latte, stand as silent sentinels of Guam's pre-colonial past. The adjacent museum offers fascinating insights into the island's rich history and the ingenuity of the Chamorro people.
Best time: Year-round
Kayaking Through the Talofofo River Caves
activityEmbark on an adventurous kayak journey up the tranquil Talofofo River, culminating in the exploration of hidden caves accessible only by water. The lush jungle canopy overhead creates a serene atmosphere, and the cool, dark interiors of the caves offer a unique natural wonder.
Best time: Nov-May
Shopping for Local Crafts at the Chamorro Village Night Market
shoppingExperience the vibrant energy of the Chamorro Village Night Market, a perfect place to find unique souvenirs and taste local delicacies. Browse stalls filled with handcrafted jewelry, woven goods, and traditional carvings, all while enjoying the lively atmosphere and delicious street food.
Best time: Wednesdays and Saturdays, year-round
Hiking to the Summit of Mt. Lamlam
natureChallenge yourself with a hike to the summit of Mt. Lamlam, Guam's highest point, for unparalleled panoramic views of the island and the surrounding ocean. The trail can be steep in parts, but the reward of seeing the vast Pacific stretching out before you is well worth the effort.
Best time: Nov-May for drier conditions
Discovering the War in the Pacific National Historical Park
attractionWalk through history at the War in the Pacific National Historical Park, where remnants of World War II battles are preserved. Explore the meticulously maintained sites, including bunkers and memorials, and gain a profound understanding of Guam's pivotal role in the Pacific theater.
Best time: Year-round
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Getting Around Guam, USA
Rental Cars
The most flexible way to explore Guam, especially if you plan to venture beyond Tumon. Having your own wheels allows you to access secluded beaches, historical sites, and local eateries at your own pace.
Public Buses (Guam Mass Transit Authority)
Guam's public bus system offers a budget-friendly way to get around, primarily serving major routes connecting villages and key tourist areas. It's a good option for shorter distances or if you're not in a rush.
Taxis
Taxis are readily available, particularly in tourist hubs like Tumon and at the airport. They offer a convenient door-to-door service for those who prefer not to drive or navigate public transport.
Ride-Sharing Services (Limited Availability)
While ride-sharing apps like Uber and Lyft are common in many US territories, their presence in Guam is very limited or non-existent. This means you'll likely rely on other methods.
Hotel Shuttles
Many hotels in the Tumon area offer complimentary shuttle services to popular attractions, shopping centers, and nearby beaches. This can be a convenient and cost-effective option if your accommodation provides it.
Walking and Biking (Localized)
Within concentrated tourist areas like Tumon, walking is a viable and pleasant way to get around to shops, restaurants, and the beach. Renting a bike can also be an option for short distances.
💡 Travel Tip: This season usually means better deals — check what's available on Trip.com.
Similar Destinations
Frequently Asked Questions
When's the absolute best time to visit Guam, and what should I pack for it?
Honestly, Guam is fantastic year-round thanks to its tropical climate, but if you're aiming for the sweet spot, aim for the dry season, roughly from December to May. You'll get plenty of sunshine for beach hopping and exploring. Pack light, breathable clothing, swimwear, reef-safe sunscreen (super important for protecting the coral!), a hat, and comfortable walking shoes. Don't forget a light rain jacket or umbrella, as even in the dry season, you can get brief, refreshing tropical showers.
Beyond the popular beaches, what's a must-see hidden gem that most tourists miss?
You absolutely have to check out the Talofofo Falls Park. It's not just about the waterfall itself, which is beautiful, but the whole experience feels like stepping back in time. You can even take a ride down to the base of the falls on an old-fashioned cable car, and there are ancient latte stones scattered around the park that offer a glimpse into Guam's Chamorro heritage. It's a refreshing change of pace from the bustling tourist hubs.
How do I get around Guam, and is it easy to navigate without a car?
While you can get by using the public bus system or taxis, I highly recommend renting a car, especially if you want to explore beyond Tumon. The island is relatively small, but having your own wheels gives you the freedom to discover those off-the-beaten-path spots and stop whenever a stunning view catches your eye. Plus, parking is generally easy to find, even at popular attractions.
What's a local custom or etiquette tip I should be aware of in Guam?
Respect is key here, especially when visiting villages or interacting with elders. Always greet people with a friendly 'Hafa Adai' (hello), and if you're invited into someone's home, it's customary to remove your shoes before entering. Also, remember that Guam is a place of deep cultural significance, so be mindful when visiting historical sites or sacred areas like latte stone parks.
Is it safe to swim and snorkel in Guam's waters, and are there any specific precautions?
Guam's waters are generally very safe and teeming with marine life, making it a snorkeler's paradise! However, always be aware of the currents, especially around the outer reefs. Stick to designated swimming and snorkeling areas, and if you see a 'No Swimming' sign, heed it – it's usually for a good reason. Wearing a rash guard can also protect you from the sun and any minor abrasions.
What's the best way to experience authentic Chamorro food, and are there any dishes I absolutely must try?
Forget the hotel buffets for a truly authentic taste! Seek out local eateries, especially those found in the villages away from Tumon. You absolutely have to try 'Kelaguen' (a dish similar to ceviche, often made with chicken, shrimp, or fish) and 'Red Rice,' which is a staple at any celebration. Don't miss out on 'Fina'denne',' a spicy soy-based sauce that accompanies almost everything.
What is the cheapest month to visit Guam, USA?
The cheapest months to visit Guam, USA are typically May and Jun during the off-season. You can save 30-40% on hotels and flights compared to peak summer months. While weather may not be ideal, you'll enjoy fewer crowds and significant savings.
How many days do you need in Guam, USA?
We recommend spending 3-5 days in Guam, USA to see the main attractions without feeling rushed. This gives you time to explore the top sights, experience local culture, and take a day trip if desired. Budget travelers might do 2-3 days, while those wanting a deeper experience should plan for a week.
What should I avoid in Guam, USA?
Avoid visiting Guam, USA during May if possible, when weather conditions are less favorable. Also, be cautious of tourist traps in heavily visited areas - research attractions beforehand and consider booking skip-the-line tickets for popular sites.
Is Guam, USA expensive to visit?
Guam, USA can be enjoyed on various budgets. Daily costs typically range from $50-80 for budget travelers, $100-200 for mid-range visitors, and $250+ for luxury experiences. Prices are highest during peak season and lowest during off-season months. Book accommodations early to secure better rates.
What is Guam, USA famous for?
Guam, USA is famous for its unique attractions, rich culture, and memorable experiences. The destination is best known for its architectural landmarks, local cuisine, and vibrant atmosphere. Visit during for the best experience.
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