When to go · Tumon
Tumon in December
Good month. Drier; Christmas and New Year are busy.
Key facts
- Verdict
- Good
- Temperature
- 30°C (86°F)86°F (30°C) / 24°C (75°F)75°F (24°C)
- average high / low
- Rain days
- 17
- Crowds
- High
- Guam overall
- Prices
- High
- Guam overall
Verdict
Drier; Christmas and New Year are busy.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than December?
December is rated good. These months rate higher:
Weather in December
- TumonHighs around 30 °C (86 °F), lows around 24 °C (75 °F), rain on about 17 daysHighs around 86 °F (30 °C), lows around 75 °F (24 °C), rain on about 17 days
- Guam, Guam · Tumon, Hagåtña, the south and the north plateaufine
Warm all year (26–31 °C (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.Warm all year (79–88 °F (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.
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.
Compare two months
Weather, crowds and prices for any two months in Tumon, side by side.
Verdict
Dec: Good
Jan: Great (better)
Daytime high
Dec: 30 °C (86 °F)86 °F (30 °C)
Jan: 30 °C (86 °F)86 °F (30 °C)
Night low
Dec: 24 °C (75 °F)75 °F (24 °C)
Jan: 24 °C (75 °F)75 °F (24 °C)
Rain days
Dec: 17
Jan: 15 (better)
Crowds
Dec: High
Jan: High
Prices
Dec: High
Jan: High
Festivals listed
Dec: 1
Jan: 3
December: Drier; Christmas and New Year are busy.
January: Dry season; comfortable and busy.
Tumon: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen
- A rain jacket or umbrella and shoes that dry fast