Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the transition into September, Pago notes an average high-temperature of a still warm 81.5°F (27.5°C), closely resembling August. A modest decline from daytime high temperatures is noticed in September, marking the average low at a still moderately hot 79.3°F (26.3°C).Heat index
September's heat index is appraised at a hot 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.The standards for the heat index are set for locations in shade and under light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
The months with the highest humidity are June through October, with an average relative humidity of 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 20 days and typically collects 1.77" (45mm) of precipitation.Ocean temperature
The months with the coldest seawater are August and September, with an average ocean temperature of 82°F (27.8°C).Note: For swimming, diving, and enjoying other water activities, the range of 77°F (25°C) to 84.2°F (29°C) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.
Daylight
The average length of the day in September in Pago is 12h and 2min.On the first day of the month, sunrise is at 6:27 am and sunset at 6:18 pm. On the last day of September, sunrise is at 6:05 am and sunset at 6:19 pm SST.
Sunshine
In Pago, the average sunshine in September 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 are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 7 during September leads to these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Attention! The combination of sand and water reflections enhances UV ray intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What are the most humid months?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
What are the months with the coldest ocean?
What is the water temperature in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
When is the highest UV index in Pago?
What are the months with the lowest UV index?
What is the UV index intensity in September in Pago?
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).
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).
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).
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%).
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").
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).
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).
Average daylight in September /
Average sunshine in September
Pago Pago, AS
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in September: 7h and 5min
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).
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).
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).
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).
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).
Pago Pago, American Samoa, USA
Weather forecast for your location
2. Allow the app to use your location