When to go · Tumon
Tumon in December
Good month. Drier; Christmas and New Year are busy.
Key facts
- Verdict
- Good
- Temperature
- 30°C86°F / 24°C75°F
- average high / low
- Rain days
- 17
- Crowds
- High
- Guam overall
- Prices
- High
- Guam overall
Verdict
Drier; Christmas and New Year are busy.
Weather in December
- TumonHighs around 30 °C, lows around 24 °C, rain on about 17 daysHighs around 86 °F, lows around 75 °F, rain on about 17 days
- Guam, Guam · Tumon, Hagåtña, the south and the north plateaufine
Warm all year (26–31 °C). Dry trade-wind season January–May; rainy season July–November, when most typhoons pass. Guam lies in the zone where tropical storms form, so a storm is possible in any month.Warm all year (79–88 °F). Dry trade-wind season January–May; rainy season July–November, when most typhoons pass. Guam lies in the zone where tropical storms form, so a storm is possible in any month.
Early dry season season
Drier, festive, busy.
Watch: Book early; peak prices.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas and New Year
25 Dec – 1 Jan · Island-wide
Peak season; book early.
Crowds and prices
- Crowds · Guam overall
- High
- Prices · Guam overall
- High
Guam overall: Trade winds return; Christmas and New Year prices.
High-price month: see what to book ahead.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast