Guam average temperatures & weather

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Guam monthly averages

Guam Climate Summary

Tropical marine; generally warm and humid, moderated by northeast trade winds; dry season (January to June), rainy season (July to December); little seasonal temperature variation

Guam weather stats

Guam weather statistics
Hottest month: June 30.9°C 87.6°F
Driest month: March 89mm 4ins
Sunniest month: March 7.4hrs
Coldest month: February 29.3°C 84.8°F
Wettest month: August 363mm 14ins
  • Hagåtña

    °C/°F
    month
    30°/85°
    24°/75°
    6.1hrs
    130mm
    Jan
    31°/87°
    24°/76°
    7.6hrs
    102mm
    Apr
    31°/87°
    25°/77°
    5.5hrs
    273mm
    Jul
    31°/88°
    25°/77°
    4.7hrs
    317mm
    Oct

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