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The weather in September in American Samoa
It's hot in September in American Samoa with an average temperature of 30°C. Temperatures this month range from a low of 30°C to a high of 31°C. At night, you can expect temperatures between 25°C and 26°C.
Looking for sun? September isn’t a good month to be in American Samoa. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for American Samoa. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 38°C in 2015, American Samoa reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 26°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 21°C to a highest value of 28°C.
Rainfall amount
In September, there is an average of 152 mm of precipitation, spread over 17 days. The wind speed is around 5 Bft, mostly coming from the East.
Daily weather in September for American Samoa
Click on any day in September to get detailed info about the usual weather on that day in American Samoa. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| American Samoa | New York | |
|---|---|---|
| Average temperature | 30°C | 27°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 25°C | -5°C |
| Total precipitation | 152 mm | 57 mm |
| Rainy days | 17 days | 9 days |
Start of September
The month of September starts in American Samoa with hot temps, averaging around 31°C during the day and nights around 26°C.
Mid September
By mid-September, daytime temps stay steady at around 31°C, with nights around 26°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in American Samoa is around 31°C, while nighttime temps are about 26°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of American Samoa for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in American Samoa. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in American Samoa
Temperature in September in American Samoa over the years
Precipitation charts
These charts show the average amount of precipitation in September in American Samoa. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in American Samoa
Total precipitation in September in American Samoa over the years
Daily UV index in September in American Samoa
This chart shows the average daily UV index in September in American Samoa, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in American Samoa
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Average weather in American Samoa by month
Click on a month below to see detailed weather info for American Samoa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.