August weather forecast and climate
Guam, USA

Flag of Guam, USA
Flag of Guam, USA

Weather in August

August is the wettest month of the year in Guam with an abundant 17.2" (437mm) of rainfall. The wet season and cloudy skies limit bright sunshine to 5 hours every day, although the daylight lasts for 12 hours. Easterly trade winds are at the lowest speeds of the year, and their presence is often nothing more than a gentle breeze. The humidity takes its toll more than the temperatures, especially near the coast and in the rainforests.
The average temperatures are in the range of 76°F (24.4°C) to 86°F (30°C), but the conditions tend to be hot and humid for the majority of the visitors. Sheltered beaches offer lovely views of the ocean and protection from the bright sun when it breaks the cloud cover.
The tourist population withers down with the gradual deterioration in conditions. August has volatile weather in Guam as the peak of the typhoon season and extreme rainfall both coincide during the month.
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