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When to go · Dededo

Dededo in August

Mixed month. Outside the best window (Jan–May, dry season). Across Guam: Wettest weeks and peak storm risk, yet Asian summer holidays fill hotels.

Key facts

Verdict
Mixed
Temperature
33°C (91°F) / 27°C (81°F)
average high / low
Rain days
7
Crowds
High
Guam overall
Prices
High
Guam overall

Verdict

MixedGuam month rating

Outside the best window (Jan–May, dry season). Across Guam: Wettest weeks and peak storm risk, yet Asian summer holidays fill hotels.

Is another month better than August?

August is rated mixed. These months rate higher:

Weather in August

Long-term averages
  • DededoHighs around 33 °C (91 °F), lows around 27 °C (81 °F), rain on about 7 days

Crowds and prices

Crowds · Guam overall
High
Prices · Guam overall
High

Guam overall: Wettest weeks and peak storm risk, yet Asian summer holidays fill hotels.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Dededo, side by side.

  • Verdict

    Aug: Mixed

    Jan: Great (better)

  • Daytime high

    Aug: 33 °C (91 °F)

    Jan: 30 °C (86 °F)

  • Night low

    Aug: 27 °C (81 °F)

    Jan: 24 °C (75 °F)

  • Rain days

    Aug: 7

    Jan: 5 (better)

  • Crowds

    Aug: High

    Jan: High

  • Prices

    Aug: High

    Jan: High

  • Festivals listed

    Aug: 0

    Jan: 1

August: Outside the best window (Jan–May, dry season). Across Guam: Wettest weeks and peak storm risk, yet Asian summer holidays fill hotels.

January: Inside Dededo's best window: Jan–May, dry season.

Dededo: figures are long-term averages from this guide, not a forecast.

What to pack

  • Light, breathable clothes, a sun hat and sunscreen

Build the full packing list for your trip →

Across Guam in August →