✓ Updated September 2026
Weather data and travel information verified current
Best Time to Visit Guam, USA: Feb 2027

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Quick Answer:
For a truly captivating Guam experience, aim for the dry season from December through May. During these months, you'll bask in abundant sunshine perfect for exploring the island's pristine beaches and vibrant coral reefs, feeling the gentle sea breeze as you witness breathtaking, golden sunsets. The humidity is lower, making hikes through lush jungles to cascading waterfalls incredibly refreshing, and you might even catch some of the lively local festivals that dot the calendar. This period offers a delightful balance, allowing you to fully immerse yourself in the island's captivating beauty without the heavier rains of the wet season.
Best Months to Visit:
Airport Code
GUM
Coordinates
13.48°, 144.75°
Climate Overview
Guam's tropical climate offers a year-round embrace of warmth, punctuated by two distinct seasons that shape the island's vibrant spirit. From December to May, the dry season whispers with gentle trade winds, creating sun-drenched days perfect for exploring ancient latte stones and pristine beaches, the air alive with the scent of blooming hibiscus. Then, from June to November, the wet season arrives with dramatic, yet often brief, tropical downpours that refresh the lush landscape, making the jungle canopy glisten and the waterfalls roar. While humidity rises and the occasional typhoon might pass through, these rains also bring a sense of renewal, often coinciding with local festivals and the rich, earthy aroma of the rainforest. Expect consistent warmth and a lively, humid atmosphere that invites you to embrace the island's energetic rhythm, whether you're diving in crystal-clear waters or enjoying a refreshing shave ice.
Best months at a glance: Feb
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Weather, best months, things to do, and travel tips
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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. Arrive before the sun crests the horizon to capture the most dramatic colors and enjoy the panoramic vistas of Tumon Bay in quiet contemplation, before the crowds gather.
Snorkeling the Pristine Waters of Piti Bay
Escape the bustling beaches and discover the vibrant underwater world of Piti Bay, a protected marine preserve teeming with colorful coral and diverse marine life. Rent a kayak or join a small boat tour for an intimate exploration, keeping an eye out for sea turtles and schools of tropical fish.
Savoring Chamorro BBQ at a Local Fiesta
Immerse yourself in the heart of Chamorro culture by attending a local fiesta, where the air is thick with the smoky aroma of traditional BBQ. Sample succulent grilled meats, kelaguen (a citrus-marinated dish), and red rice, often accompanied by lively music and dancing.
Exploring the Latte Stone Park & Museum of Natural History
Step back in time at the Latte Stone Park, where ancient stone pillars stand as silent sentinels of Guam's rich history, and then delve deeper at the adjacent museum. These unique geological formations offer a tangible connection to the island's indigenous Chamorro heritage.
💡 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 cash on hand for smaller local markets and roadside fruit stands. You'll find ATMs readily available in major tourist areas like Tumon, but it's good to have smaller bills for spontaneous purchases like fresh mangos or local crafts.
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. Public transport is limited, and taxis can add up quickly. Book your rental in advance, especially during peak seasons, to secure better rates.
Embrace the 'Håfa Adai' spirit! This Chamorro greeting means 'hello' and is more than just a word; it's a way of life that emphasizes warmth and hospitality. 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! This traditional Chamorro dish, often made with chicken, shrimp, or fish, is marinated in lemon, coconut milk, and hot peppers – it's a zesty and delicious taste of the island. Look for it at local fiestas or restaurants serving authentic Chamorro cuisine.
Pack light, breathable clothing and plenty of reef-safe sunscreen. Guam is tropical, so expect humidity and warm temperatures year-round. Protecting the coral reefs is a big deal here, so opt for sunscreens that don't contain oxybenzone and octinoxate to help preserve the marine environment.
Be mindful of the ocean conditions, especially when swimming or snorkeling. Rip currents can be strong, so always check local beach advisories and swim in designated areas or near lifeguards. The waters are beautiful, but respecting the power of the Pacific is key to a safe visit.
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Find Your Best Month to Visit Guam
Pick what matters most to you and we'll rank every month of the year using Guam's actual weather data.
- #1MayBest match🌡️ 85°F high🌧️ 20 rainy days🌅 12.7h daylight
- #2Jun🌡️ 85°F high🌧️ 24 rainy days🌅 12.9h daylight
- #3Apr🌡️ 84°F high🌧️ 17 rainy days🌅 12.4h daylight
- #4Dec🌡️ 84°F high🌧️ 18 rainy days🌅 11.3h daylight
- #5Jul🌡️ 85°F high🌧️ 29 rainy days🌅 12.8h daylight
- #6Feb🌡️ 83°F high🌧️ 12 rainy days🌅 11.7h daylight
- #7Nov🌡️ 84°F high🌧️ 23 rainy days🌅 11.5h daylight
- #8Mar🌡️ 83°F high🌧️ 16 rainy days🌅 12.1h daylight
- #9Jan🌡️ 83°F high🌧️ 17 rainy days🌅 11.4h daylight
- #10Sep🌡️ 84°F high🌧️ 29 rainy days🌅 12.2h daylight
- #11Oct🌡️ 84°F high🌧️ 29 rainy days🌅 11.8h daylight
- #12Aug🌡️ 84°F high🌧️ 30 rainy days🌅 12.6h daylight
Weather Details
Monthly Weather Data Table
| Month | High (°C) | Low (°C) | High (°F) | Low (°F) | Rainfall (mm) | Rain Days | Daylight (h) |
|---|---|---|---|---|---|---|---|
| Jan | 28°C | 25°C | 83°F | 77°F | 106mm | 17 days | 11.4h |
| Feb | 28°C | 25°C | 83°F | 77°F | 60mm | 12 days | 11.7h |
| Mar | 29°C | 25°C | 83°F | 77°F | 75mm | 16 days | 12.1h |
| Apr | 29°C | 26°C | 84°F | 78°F | 106mm | 17 days | 12.4h |
| May | 29°C | 26°C | 85°F | 79°F | 138mm | 20 days | 12.7h |
| Jun | 30°C | 26°C | 85°F | 79°F | 161mm | 24 days | 12.9h |
| Jul | 29°C | 26°C | 85°F | 78°F | 340mm | 29 days | 12.8h |
| Aug | 29°C | 25°C | 84°F | 78°F | 454mm | 30 days | 12.6h |
| Sep | 29°C | 25°C | 84°F | 78°F | 435mm | 29 days | 12.2h |
| Oct | 29°C | 25°C | 84°F | 78°F | 423mm | 29 days | 11.8h |
| Nov | 29°C | 26°C | 84°F | 79°F | 168mm | 23 days | 11.5h |
| Dec | 29°C | 26°C | 84°F | 78°F | 106mm | 18 days | 11.3h |
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
28°C°C / 83°F°F
17 days rainy days • 106mmmm
What to Expect
Warm and summery, with highs near 28°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Feb in Guam, USA
⭐ Best TimeWeather
28°C°C / 83°F°F
12 days rainy days • 60mmmm
What to Expect
Warm and summery, with highs near 28°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy. It's the driest month of the year here.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Mar in Guam, USA
Weather
29°C°C / 83°F°F
16 days rainy days • 75mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Apr in Guam, USA
Weather
29°C°C / 84°F°F
17 days rainy days • 106mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
May in Guam, USA
Weather
29°C°C / 85°F°F
20 days rainy days • 138mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Jun in Guam, USA
Weather
30°C°C / 85°F°F
24 days rainy days • 161mmmm
What to Expect
Warm and summery, with highs near 30°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear.
Crowd Level
🔴 High - Peak tourist season, book early
Jul in Guam, USA
Weather
29°C°C / 85°F°F
29 days rainy days • 340mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear.
Crowd Level
🔴 High - Peak tourist season, book early
Aug in Guam, USA
Weather
29°C°C / 84°F°F
30 days rainy days • 454mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear. It also brings the most rain of any month here.
Crowd Level
🔴 High - Peak tourist season, book early
Sep in Guam, USA
Weather
29°C°C / 84°F°F
29 days rainy days • 435mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Oct in Guam, USA
Weather
29°C°C / 84°F°F
29 days rainy days • 423mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear.
Crowd Level
🟡 Moderate - Comfortable crowds, good availability
Nov in Guam, USA
Weather
29°C°C / 84°F°F
23 days rainy days • 168mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Expect frequent rain this month — bring waterproof gear.
Crowd Level
🟢 Low - Quiet season, easy to find accommodation
Dec in Guam, USA
Weather
29°C°C / 84°F°F
18 days rainy days • 106mmmm
What to Expect
Warm and summery, with highs near 29°C — great for beaches and outdoor activities. Occasional showers are likely, so a light rain jacket is handy.
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. Arrive before the sun crests the horizon to capture the most dramatic colors and enjoy the panoramic vistas of Tumon Bay in quiet contemplation, before the crowds gather.
Best time: Nov-May
Snorkeling the Pristine Waters of Piti Bay
natureEscape the bustling beaches and discover the vibrant underwater world of Piti Bay, a protected marine preserve teeming with colorful coral and diverse marine life. Rent a kayak or join a small boat tour for an intimate exploration, keeping an eye out for sea turtles and schools of tropical fish.
Best time: Nov-May
Savoring Chamorro BBQ at a Local Fiesta
foodImmerse yourself in the heart of Chamorro culture by attending a local fiesta, where the air is thick with the smoky aroma of traditional BBQ. Sample succulent grilled meats, kelaguen (a citrus-marinated dish), and red rice, often accompanied by lively music and dancing.
Best time: Year-round, but check local schedules for specific village fiestas
Exploring the Latte Stone Park & Museum of Natural History
culturalStep back in time at the Latte Stone Park, where ancient stone pillars stand as silent sentinels of Guam's rich history, and then delve deeper at the adjacent museum. These unique geological formations offer a tangible connection to the island's indigenous Chamorro heritage.
Best time: Year-round
Kayaking Through the Talofofo Caves
activityEmbark on an adventurous kayaking journey to the hidden Talofofo Caves, accessible only by water and offering a glimpse into a secluded natural wonder. Paddle through the calm waters, marvel at the stalactites and stalagmites, and feel the cool, refreshing spray of the ocean.
Best time: Nov-May
Discovering Local Crafts at the Chamorro Village Night Market
shoppingExperience the vibrant energy of the Chamorro Village Night Market, a weekly hub for local artisans and culinary delights. Browse unique handcrafted souvenirs, from intricate shell jewelry to woven baskets, and indulge in authentic island snacks under the starlit sky.
Best time: Wednesday evenings, 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 360-degree views of the island and the vast Pacific Ocean. The trail can be steep, but the reward of seeing the island laid out beneath you is truly spectacular, especially on a clear day.
Best time: Nov-May
Sunset Cocktails with a View in Tumon
activityUnwind with a tropical cocktail at one of Tumon's beachfront bars as the sun dips below the horizon, casting a warm glow over the ocean. Many resorts offer open-air lounges with stunning sunset vistas, providing the perfect end to a day of exploration.
Best time: Year-round
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Getting Around Guam, USA
Rental Cars
Renting a car is by far the most flexible way to explore Guam, especially if you plan to venture beyond Tumon. It gives you the freedom to visit secluded beaches, historical sites, and local eateries at your own pace.
Taxis
Taxis are readily available, particularly in tourist areas like Tumon and at the airport. They are a convenient option for direct transfers or when you need to get somewhere quickly without the hassle of driving.
Ride-Sharing Services (Limited)
While not as ubiquitous as in mainland US cities, ride-sharing services like Uber and Lyft do operate in Guam. They can offer a competitive alternative to taxis, especially for shorter trips within populated areas.
Local Buses (Limited Routes)
Guam has a public bus system, but it's not extensive and primarily serves local communities rather than major tourist attractions. It's best suited for getting around specific neighborhoods or for budget-conscious travelers with flexible schedules.
Hotel Shuttles
Many hotels, especially in the Tumon area, offer complimentary shuttle services to popular shopping centers, beaches, and attractions. This is a convenient and cost-effective way to get around if your destinations align with the shuttle routes.
💡 Travel Tip: This season usually means better deals — check what's available on Trip.com.
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Frequently Asked Questions
When's the absolute best time to visit Guam, and what should I pack for it?
Honestly, Guam is a tropical paradise year-round, but if you're looking 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 sunglasses. Don't forget a light rain jacket or umbrella, as brief tropical showers can still pop up, even in the dry season.
Beyond the main beaches, what are some must-see natural wonders or cultural experiences that most tourists miss?
You absolutely have to venture inland to see the lush interior and waterfalls like the Sigua Falls or the more accessible Tarzan Falls. For a deeper cultural dive, visit the Latte Stone Park in Hagåtña to see these ancient Chamorro foundations, or explore the War in the Pacific National Historical Park for a poignant look at Guam's history. If you can, try to catch a local fiesta – they're vibrant celebrations with incredible food and music!
Getting around Guam seems a bit tricky. What's the best way to explore the island?
While there's a public bus system, it's not always the most convenient for exploring at your own pace. Renting a car is definitely your best bet for freedom and flexibility, especially if you want to reach those hidden beaches or remote viewpoints. Just be aware that driving is on the right side, and while roads are generally good, some smaller routes can be a bit rough. Taxis are available but can add up quickly.
I've heard about the Chamorro culture. Are there any specific customs or etiquette I should be aware of?
The Chamorro people are incredibly warm and welcoming, and a simple 'Håfa Adai' (hello) goes a long way! Respect is key; always ask permission before taking photos of people, and be mindful of noise levels, especially in residential areas. When invited into someone's home, it's a sign of great respect to accept and perhaps bring a small gift. Also, remember to dress modestly when visiting churches or more traditional villages.
What's the deal with food in Guam? Any local specialties I shouldn't miss?
Oh, the food is a highlight! Guam's cuisine is a delicious fusion of Chamorro, Filipino, Spanish, and American influences. You absolutely must try kelaguen (a type of ceviche, often made with chicken or shrimp) and red rice – they're staples at any gathering. Don't shy away from local markets for fresh seafood and tropical fruits like mangoes and avocados. And for a sweet treat, look for buñelos de luna (sweet potato donuts).
Is it safe to swim and snorkel in Guam? Are there any specific precautions I should take?
Guam's waters are generally safe and stunning for swimming and snorkeling, but always be aware of your surroundings. Stick to designated swimming areas and pay attention to any posted warning signs about currents or marine life. It's crucial to wear reef-safe sunscreen to protect the delicate coral ecosystems, and never touch or stand on coral. If you're venturing out to more remote spots, it's always a good idea to go with a buddy.
What is the cheapest month to visit Guam, USA?
Guam, USA is generally cheapest to visit during its quieter off-season, around Jun and Jul. Hotel and flight prices tend to be lower then and there are fewer crowds; the trade-off is less reliable weather. Exactly how much you save depends on the destination and how far ahead you book, so staying flexible with your dates helps you find the best rates.
What should I avoid in Guam, USA?
The main thing to plan around is the weather: Jun and Jul are usually the least comfortable months to visit Guam, USA — Jun in particular brings heavy rainfall, so it's worth avoiding if you can be flexible with your dates. If a comfortable climate is your priority, aim for Feb instead.
Is Guam, USA expensive to visit?
Costs in Guam, USA vary a lot with your travel style and when you go. Flights and accommodation tend to be most expensive around the busy Feb period and noticeably cheaper in the quieter Jun stretch, so shifting your dates can make a real difference. Booking accommodation and activities ahead, travelling outside the busiest months, and comparing prices across booking sites are the most reliable ways to keep your trip affordable.
What is Guam, USA famous for?
Guam, USA is famous for Snorkeling the Pristine Waters of Piti Bay, Hiking to the Summit of Mt. Lamlam, and Exploring the Latte Stone Park & Museum of Natural History. Escape the bustling beaches and discover the vibrant underwater world of Piti Bay, a protected marine preserve teeming with colorful coral and diverse marine life. Rent a kayak or join a small boat tour for an intimate exploration, keeping an eye out for sea turtles and schools of tropical fish. The best time to experience it all is during Feb.
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