September
Weather in American Samoa for September 2025
Your guide to American Samoa weather in September - trends and predictions
Until now, September 2025 in American Samoa has been nearly identical to the historical average, with a temperature of 26.1 °C (showing only a slight deviation of -0.4 °C).
The forecast for the next days in American Samoa predicts temperatures to be around 26 °C, close to the historical average.
In general, the average temperature in American Samoa at the beginning of September is 26.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 27 °C by the end of September.
American Samoa experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 89.8 mm.
Temperatures
Rain 🌧️
7
Dry days
23
Rainy days
0
Snow days
26°/26°
Temperatures
32 km/h
Avg max wind
77 %
Avg humidity
American Samoa Weather September
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Temperatures trend during September in American Samoa
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September weather in American Samoa day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 26° /25° | 2.4 mm | 7 | |
| 2 Sept. | Patchy rain possible | 26° /25° | 1 mm | 7 | |
| 3 Sept. | Light rain shower | 26° /25° | 2.1 mm | 7 | |
| 4 Sept. | Light rain shower | 27° /26° | 3.3 mm | 7 | |
| 5 Sept. |  Cloudy | 27° /26° | 3.1 mm | 7 | |
| 6 Sept. | Light rain shower | 27° /25° | 6.8 mm | 7 | |
| 7 Sept. | Patchy rain possible | 26° /25° | 2.2 mm | 7 | |
| 8 Sept. | Light rain shower | 27° /25° | 5.4 mm | 7 | |
| 9 Sept. | Light rain shower | 26° /25° | 5.5 mm | 7 | |
| 10 Sept. | Patchy rain possible | 26° /25° | 4.7 mm | 7 | |
| 11 Sept. | Light rain shower | 27° /26° | 3.3 mm | 7 | |
| 12 Sept. | Patchy rain possible | 27° /25° | 0.4 mm | 7 | |
| 13 Sept. | Cloudy | 27° /25° | 0.9 mm | 7 | |
| 14 Sept. | Patchy rain possible | 26° /25° | 0.3 mm | 7 | |
| 15 Sept. | Cloudy | 27° /26° | 0.3 mm | 7 | |
| 16 Sept. |  Moderate rain | 26° /26° | 8.2 mm | 2.8 | |
| 17 Sept. | Moderate rain | 25° /24° | 9.1 mm | 1.7 | |
| 18 Sept. | Patchy rain possible | 25° /25° | 2 mm | 2.3 | |
| 19 Sept. | Patchy rain possible | 25° /24° | 0.2 mm | 2.8 | |
| 20 Sept. | Cloudy | 26° /25° | 0.1 mm | 0 | |
| 21 Sept. | Patchy rain possible | 26° /26° | 0.3 mm | 7 | |
| 22 Sept. | Patchy rain possible | 26° /26° | 3.5 mm | 7 | |
| 23 Sept. | Patchy rain possible | 27° /26° | 2 mm | 7 | |
| 24 Sept. | Patchy rain possible | 27° /26° | 0.9 mm | 7 | |
| 25 Sept. | Patchy rain possible | 27° /27° | 0.7 mm | 7 | |
| 26 Sept. | Patchy rain possible | 27° /27° | 1.6 mm | 7 | |
| 27 Sept. | Patchy rain possible | 27° /27° | 0.2 mm | 7 | |
| 28 Sept. | Patchy rain possible | 27° /27° | 0.1 mm | 7 | |
| 29 Sept. | Patchy rain possible | 27° /25° | 12.7 mm | 7 | |
| 30 Sept. | Patchy rain possible | 27° /25° | 5.6 mm | 7 | |
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Important Notice
Our weather forecast for American Samoa in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the American Samoa forecast closer to your planned date for the most up-to-date weather information.
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American Samoa in September - FAQ
What are the expected maximum and minimum temperatures in American Samoa during September?
During September, expect a variety of temperatures with highs around 26° and lows near 26°, suitable for diverse activities and preferences.
How much rainfall should be expected in American Samoa during September?
Moderate rainfall is anticipated in American Samoa during September, with a total of 89.8 mm spread over approximately 23 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in American Samoa during September?
The average wind speed in American Samoa during September is 32 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in American Samoa
Explore the daily rainfall trends and prepare for American Samoas September weather 💧
UV exposure in American Samoa during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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