Guam Travel Guide: Best Season, Weather, Plugs & Itineraries
A short-haul tropical island with Tumon Bay snorkelling, Two Lovers Point, duty-free shopping and Chamorro culture — great for families and quick escapes.
🗓 Best time to goJan–May dry season is sunniest; Jul–Nov is wet with typhoons.
💱 CurrencyUS dollar (USD)
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🔌 Plugs & voltage110–120V | Type A/B (flat pins)
🌦 ClimateDry season Jan–May is sunniest; Jul–Nov is rainy with typhoon risk. UV is intense.
Monthly average temperatures in Guam
| City / month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Guam High / low | 29° 24° | 29° 24° | 30° 24° | 31° 25° | 31° 25° | 31° 25° | 31° 25° | 31° 25° | 31° 25° | 31° 25° | 30° 25° | 29° 24° |
°C — top is the average high, bottom the average low. Typical values only; check the forecast before you go. See charts in the climate tool.
Guam travel tips
- Visa-free visitors need a Guam-CNMI ETA or ESTA in advance, depending on nationality.
- US territory: drive on the right and tip at restaurants.
- Strong UV — wear reef shoes in the shallows.
Guam itineraries
Guam Beach Escape in 4 Days
GuamBeach & islandsFamilyShopping
Snorkel Tumon Bay, catch sunset at Two Lovers Point, feast at the Chamorro night market and loop the wild south — a short-haul, family-friendly island break.
Read before you go
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General travel information — entry rules, e-authorisations, weather and opening details change often, so check official sources.