September
Weather in American Samoa for September 2025
Your guide to American Samoa weather in September - trends and predictions
In general, the average temperature in American Samoa at the beginning of September is 26.3 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 26.4 °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.
Is September a good time to visit American Samoa? check out the best time to travel to American Samoa page.
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Temperatures
Rain 🌧️
More
7
Dry days
23
Rainy days
0
Snow days
26°/26°
Temperatures
32 km/h
Avg max wind
77 %
Avg humidity
American Samoa in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 26° | 3 26° | 4 26° | 5  27° | 6 27° | 7 26° |
| 8 26° | 9 26° | 10 26° | 11 27° | 12 27° | 13 27° | 14  26° |
| 15 27° | 16 27° | 17 27° | 18 26° | 19 26° | 20 27° | 21 27° |
| 22 26° | 23 26° | 24 26° | 25 26° | 26 26° | 27 26° | 28 27° |
| 29 27° | 30 27° |
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Temperatures trend during September in American Samoa
See the weather trend as well as the moving average line
September weather 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° | 0.7 mm | 7 | |
| 4 Sept. | Light rain shower | 26° /26° | 2.1 mm | 7 | |
| 5 Sept. | Cloudy | 27° /26° | 2 mm | 7 | |
| 6 Sept. | Cloudy | 27° /25° | 7.6 mm | 7 | |
| 7 Sept. | Light rain shower | 26° /24° | 2.4 mm | 7 | |
| 8 Sept. | Light rain shower | 26° /25° | 4.2 mm | 7 | |
| 9 Sept. | Light rain shower | 26° /25° | 7.4 mm | 7 | |
| 10 Sept. | Patchy rain possible | 26° /26° | 4.5 mm | 7 | |
| 11 Sept. | Light rain shower | 27° /26° | 2 mm | 7 | |
| 12 Sept. | Cloudy | 27° /26° | 0.5 mm | 7 | |
| 13 Sept. | Cloudy | 27° /26° | 1.3 mm | 7 | |
| 14 Sept. | Overcast | 26° /26° | 0.5 mm | 7 | |
| 15 Sept. | Cloudy | 27° /26° | 0.3 mm | 7 | |
| 16 Sept. | Patchy rain possible | 27° /26° | 1.9 mm | 7 | |
| 17 Sept. | Patchy rain possible | 27° /26° | 0.7 mm | 7 | |
| 18 Sept. | Light rain shower | 26° /25° | 2.6 mm | 7 | |
| 19 Sept. | Patchy rain possible | 26° /25° | 0.3 mm | 7 | |
| 20 Sept. | Patchy rain possible | 27° /25° | 0.5 mm | 7 | |
| 21 Sept. | Light rain shower | 27° /25° | 4.5 mm | 7 | |
| 22 Sept. | Light rain shower | 26° /25° | 3.4 mm | 7 | |
| 23 Sept. | Light rain shower | 26° /25° | 2.1 mm | 7 | |
| 24 Sept. | Patchy rain possible | 26° /25° | 0.9 mm | 7 | |
| 25 Sept. | Patchy rain possible | 26° /25° | 4.4 mm | 7 | |
| 26 Sept. | Patchy rain possible | 26° /25° | 6.1 mm | 7 | |
| 27 Sept. | Patchy rain possible | 26° /25° | 2 mm | 7 | |
| 28 Sept. | Patchy rain possible | 27° /25° | 2.9 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.
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.
What to pack to American Samoa in September?
As you prepare for your trip to American Samoa in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in American Samoa, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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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