easeweather.com
Units
°C
°F
American Samoa
Forecast Today Tomorrow
more
OceaniaUnited States

Weather in American Samoa for September 2025

Your guide to American Samoa weather in September - trends and predictions

    Temperatures

  • 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.

  • Rain 🌧️

  • American Samoa experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 89.8 mm.

Average dry days
7
Dry days
Average rainy days
23
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/26°
Temperatures
Average wind speed
32 km/h
Avg max wind
Average humidity
77 %
Avg humidity

American Samoa in September average weather

Move between months or click on a day
Select a date

You can click on date

Access American Samoa weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Got it

Temperatures trend during September in American Samoa

See the weather trend as well as the moving average line

September weather day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
1 Sept. Light rain shower
Light rain shower
26° /25° 2.4 mm 7
2 Sept. Patchy rain possible
Patchy rain possible
26° /25° 1 mm 7
3 Sept. Light rain shower
Light rain shower
26° /25° 0.7 mm 7
4 Sept. Light rain shower
Light rain shower
26° /26° 2.1 mm 7
5 Sept. Cloudy
Cloudy
27° /26° 2 mm 7
6 Sept. Cloudy
Cloudy
27° /25° 7.6 mm 7
7 Sept. Light rain shower
Light rain shower
26° /24° 2.4 mm 7
8 Sept. Light rain shower
Light rain shower
26° /25° 4.2 mm 7
9 Sept. Light rain shower
Light rain shower
26° /25° 7.4 mm 7
10 Sept. Patchy rain possible
Patchy rain possible
26° /26° 4.5 mm 7
11 Sept. Light rain shower
Light rain shower
27° /26° 2 mm 7
12 Sept. Cloudy
Cloudy
27° /26° 0.5 mm 7
13 Sept. Cloudy
Cloudy
27° /26° 1.3 mm 7
14 Sept. Overcast
Overcast
26° /26° 0.5 mm 7
15 Sept. Cloudy
Cloudy
27° /26° 0.3 mm 7
16 Sept. Patchy rain possible
Patchy rain possible
27° /26° 1.9 mm 7
17 Sept. Patchy rain possible
Patchy rain possible
27° /26° 0.7 mm 7
18 Sept. Light rain shower
Light rain shower
26° /25° 2.6 mm 7
19 Sept. Patchy rain possible
Patchy rain possible
26° /25° 0.3 mm 7
20 Sept. Patchy rain possible
Patchy rain possible
27° /25° 0.5 mm 7
21 Sept. Light rain shower
Light rain shower
27° /25° 4.5 mm 7
22 Sept. Light rain shower
Light rain shower
26° /25° 3.4 mm 7
23 Sept. Light rain shower
Light rain shower
26° /25° 2.1 mm 7
24 Sept. Patchy rain possible
Patchy rain possible
26° /25° 0.9 mm 7
25 Sept. Patchy rain possible
Patchy rain possible
26° /25° 4.4 mm 7
26 Sept. Patchy rain possible
Patchy rain possible
26° /25° 6.1 mm 7
27 Sept. Patchy rain possible
Patchy rain possible
26° /25° 2 mm 7
28 Sept. Patchy rain possible
Patchy rain possible
27° /25° 2.9 mm 7
29 Sept. Patchy rain possible
Patchy rain possible
27° /25° 12.7 mm 7
30 Sept. Patchy rain possible
Patchy rain possible
27° /25° 5.6 mm 7
Next
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.

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 ☀️
Regions in American Samoa
Choose a region for an accurate weather forecasts
Top locations in American Samoa
Select a location for an accurate weather forecast
More Locations

Quick links

Location coordinates Where is American Samoa?

Get accurate weather forecasts for American Samoa, located at latitude -14.278 and longitude -170.703. Stay updated with localized weather information tailored for American Samoa.

Found a mistake?
We appreciate your attention to details. Tell us here.