September weather forecast
American Samoa, USA

September in American Samoa signals the culmination of the dry season and the gradual shift towards the onset of the wetter months. Despite the transition, the month largely retains the drier conditions, with temperatures averaging between 78°F (25.6°C) and 85°F (29.4°C). While the days remain predominantly sunny and warm, there's a subtle increase in humidity, hinting at the approaching wet season.

Moving from August to September, there's a gentle uptick in rainfall. While still being predominantly clear, the frequency of rain showers begins to show a slight increase, especially towards the end of the month. These showers, however, are brief and sporadic, often giving way to clear skies soon after.

Pago, maintaining its trend, sees a bit more rainfall due to its close proximity to the mountainous areas, accentuating the orographic effect. This region serves as an example of the varied microclimates within the American Samoa territory, consistently showcasing unique weather patterns even as broader seasonal changes occur.

September, being at the tail end of the dry season, offers tourists a blend of the drier and wetter conditions. It's a month that allows for diverse activities, from exploring the terrestrial wonders to diving into the marine depths. The ocean, still boasting clear visibility, provides an enriching experience for those eager to witness the marine biodiversity. However, as the month progresses, it's advisable for visitors to keep an eye on weather forecasts, especially if planning outdoor activities, to account for the slowly increasing likelihood of rain showers.

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• Pago - September »
  August and September, with an average ocean temperature of 82°F (27.8°C), are months with the coldest seawater in Pago, American Samoa. August and September, with an average ocean temperature of 82°F (27.8°C), are months with the coldest seawater in Pago.