September weather forecast
Pago Pago, AS

Pago Pago Harbour in Pago Pago, American Samoa
Pago Pago Harbour in Pago Pago, American Samoa

Weather in September

The first month of the spring, September, is also a moderately hot month in Pago, American Samoa, with an average temperature ranging between max 81.5°F (27.5°C) and min 79.3°F (26.3°C).

Temperature

In September, the average high-temperature is almost the same as in August - a still moderately hot 81.5°F (27.5°C). In Pago, the average low-temperature is 79.3°F (26.3°C).

Heat index

The average heat index in September is appraised at a tropical 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, metabolic differences), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

June through October, with an average relative humidity of 78%, are the most humid months.

Rainfall

The month with the least rainfall in Pago is September, when the rain falls for 20 days and typically collects 1.77" (45mm) of precipitation.

Ocean temperature

August and September, with an average ocean temperature of 82°F (27.8°C), are months with the coldest seawater in Pago.
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Pago, the average length of the day in September is 12h and 2min.
On the first day of the month, sunrise is at 6:27 am and sunset at 6:17 pm. On the last day of September, sunrise is at 6:06 am and sunset at 6:19 pm SST.

Sunshine

In September, the average sunshine is 7.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Pago are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Pago?

The average high-temperature, in September, is 81.5°F (27.5°C), while the average low-temperature is 79.3°F (26.3°C). in September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What are the most humid months in Pago?

June through October, with an average relative humidity of 78%, are most humid months in Pago, American Samoa.

What is the average humidity in September in Pago?

The average relative humidity in September in Pago, American Samoa, is 78%.

What is the driest month in Pago?

September is the month with the least rainfall in Pago. Rain falls for 20 days and accumulates 1.77" (45mm) of precipitation.

How many days does it rain in September in Pago?

In September, in Pago, the rain falls for 20 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When is the ocean coldest in Pago?

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

What is the ocean temperature in September in Pago?

In September, the average ocean temperature in Pago is 82°F (27.8°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Pago have in September?

In Pago, American Samoa, the average day length in September is 12h and 2min.

When are sunrise and sunset in September in Pago?

On the first day of September in Pago, American Samoa, sunrise is at 6:27 am and sunset at 6:17 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 6:19 pm SST.

How long on average sun shines in September in Pago?

In September, the average sunshine duration in Pago, American Samoa, is 7.8h.

What are the months with the highest UV index in Pago?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Pago, American Samoa.

What are the months with the lowest UV index in Pago?

The months with the lowest UV index in Pago, American Samoa, are January through December, with an average maximum UV index of 7.

What is the UV index reading in September in Pago?

In September, the average daily maximum UV index in Pago, American Samoa, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in September
Pago Pago, AS

Average temperature in September - Pago Pago, AS
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is April (84°F).
The month with the lowest average high temperature is August (81.1°F).

  • Average low temperature in September: 79.3°F

The month with the highest average low temperature is March (82.4°F).
The coldest months (with the lowest average low temperature) are July, August and September (79.3°F).

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Average pressure in September
Pago Pago, AS

Average pressure in September - Pago Pago, AS
  • Average pressure in September: 29.91"Hg

The month with the highest atmospheric pressure is September (29.91"Hg).
The month with the lowest atmospheric pressure is January (29.75"Hg).

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Average wind speed in September
Pago Pago, AS

Average wind speed in September - Pago Pago, AS
  • Average wind speed in September: 14.7mph

The windiest month (with the highest average wind speed) is July (15.6mph).
The calmest month (with the lowest average wind speed) is March (8.6mph).

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Average humidity in September
Pago Pago, AS

Average humidity in September - Pago Pago, AS
  • Average humidity in September: 78%

The months with the highest relative humidity are June, July, August, September and October (78%).
The month with the lowest relative humidity is March (75%).

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Average rainfall in September
Pago Pago, AS

Average rainfall in September - Pago Pago, AS
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is January (6.81").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
Pago Pago, AS

Average rainfall days in September - Pago Pago, AS
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is September (20 days).

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Average sea temperature in September
Pago Pago, AS

Average sea temperature in September - Pago Pago, AS
  • Average sea temperature in September: 82°F

The best month for swimming (with the highest average sea temperature) is March (85.4°F).
The coldest months (with the lowest average sea temperature) are August and September (82°F).

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Average daylight in September /
Average sunshine in September
Pago Pago, AS

Average daylight in September / Average sunshine in September - Pago Pago, AS
  • Average daylight in September: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 58min).
The month with the shortest days is June (Average daylight: 11h and 17min).

  • Average sunshine in September: 7h and 48min

The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 12min).

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Average sunshine days in September
Pago Pago, AS

Average sunshine days in September - Pago Pago, AS
  • Average sunshine days in September: 6.1 days

The month with the most sunshine days is September (6.1 days).
The month with the least sunshine days is April (2.3 days).

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Average UV index in September
Pago Pago, AS

Average UV index in September - Pago Pago, AS
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in September
Pago Pago, AS

Average cloud cover in September - Pago Pago, AS
  • Average cloud cover in September: 45

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 40).

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Average visibility in September
Pago Pago, AS

Average visibility in September - Pago Pago, AS
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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