January weather forecastPago Pago, AS

January
Weather in January
In January, Pago experiences mild weather with consistent conditions typical of American Samoa's tropical climate. The month sees a steady high temperature, while the low temperature remains comfortably warm. A notable factor in January's weather is the high amount of rainfall, measuring at 6.81" (173mm). It's a month when the weather remains relatively cloudy, with the sky being overcast nearly half of the time. Likewise, the sea maintains a warm temperature to invite beachgoers irrespective of the season.Temperature
As December transitions into January, the average high-temperature rests at a still warm 83.8°F (28.8°C), maintaining a close resemblance to the previous month. Pago in January experiences a minor decline in temperature, with an average low of 81.7°F (27.6°C) at night.Heat index
The heat index for January is appraised at a tropical 91.4°F (33°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In Pago, the average relative humidity in January is 76%.Rainfall
January is the month with the most rainfall. Rain falls for 25.8 days and accumulates 6.81" (173mm) of precipitation.Ocean temperature
In January, the average ocean temperature in Pago is 84.7°F (29.3°C).Note: For engaging in any water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) are viewed as outstanding and exceptionally pleasing for prolonged durations.
Daylight
The average length of the day in January is 12h and 52min.On the first day of January, sunrise is at 5:57 am and sunset at 6:55 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 6:58 pm SST.
Sunshine
The average sunshine in January is 7.7h.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 estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 7 suggests these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Pago Pago, AS
- Average high temperature in January: 83.8°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 January: 81.7°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 January
Pago Pago, AS
- Average pressure in January: 29.75"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 January
Pago Pago, AS
- Average wind speed in January: 10.2mph
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 January
Pago Pago, AS
- Average humidity in January: 76%
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 January
Pago Pago, AS
- Average rainfall in January: 6.81"
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 January
Pago Pago, AS
- Average rainfall days in January: 25.8 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 January
Pago Pago, AS
- Average sea temperature in January: 84.8°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 January /
Average sunshine in January
Pago Pago, AS
- Average daylight in January: 12h and 54min
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 January: 7h and 42min
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 January
Pago Pago, AS
- Average sunshine days in January: 3.3 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 January
Pago Pago, AS
- Average UV index in January: 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 January
Pago Pago, AS
- Average cloud cover in January: 47
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 January
Pago Pago, AS
- Average visibility in January: 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).





