December weather forecast
Pago Pago, AS

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

Weather in December

December, the first month of the summer in Pago, is also a moderately hot month, with an average temperature varying between 83.1°F (28.4°C) and 81.9°F (27.7°C).

Temperature

In Pago, the average high-temperature in December is essentially the same as in November - a still moderately hot 83.1°F (28.4°C). In December, the average low-temperature is 81.9°F (27.7°C).

Heat index

The average heat index in December is estimated at a tropical 90.3°F (32.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
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', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, clothing). 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Pago, the average relative humidity in December is 76%.

Rainfall

In Pago, in December, during 25.2 rainfall days, 5.91" (150mm) of precipitation is typically accumulated. Throughout the year, in Pago, there are 280 rainfall days, and 49.96" (1269mm) of precipitation is accumulated.

Ocean temperature

In Pago, American Samoa, the average water temperature is 85.1°F (29.5°C).
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

December has the longest days of the year, with an average of 12h and 58min of daylight.
On the first day of the month, sunrise is at 5:44 am and sunset at 6:39 pm. On the last day of December, in Pago, sunrise is at 5:57 am and sunset at 6:54 pm SST.

Sunshine

December has the most sunshine of the year in Pago, with an average of 9.7h of sunshine.

UV index

The months with the highest UV index in Pago are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 7 in December transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 December in Pago?

In December, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 81.9°F (27.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in December is estimated at 90.3°F (32.4°C).

What is the average humidity in December in Pago?

In Pago, the average relative humidity in December is 76%.

How many days does it rain in December in Pago?

In Pago, American Samoa, during December, the rain falls for 25.2 days and regularly aggregates up to 5.91" (150mm) of precipitation.

What is the water temperature in December in Pago?

In December, the average ocean temperature in Pago, American Samoa, is 85.1°F (29.5°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.

When are the longest days in Pago?

The month with the longest days is December, with an average of 12h and 58min of daylight.

How many hours of daylight does Pago have in December?

In December, the average day length in Pago is 12h and 58min.

When is the sunrise / sunset in December in Pago?

On the first day of December, sunrise is at 5:44 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:54 pm SST.

What month has the most sunshine in Pago?

The month with the most sunshine is December, with an average of 9.7h of sunshine.

How many hours of sunshine does Pago have in December?

In December, the average sunshine duration is 9.7h.

What is the month 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 is the month 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 intensity in December in Pago?

The average daily maximum UV index in December in Pago is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in December
Pago Pago, AS

Average temperature in December - Pago Pago, AS
  • Average high temperature in December: 83.1°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 December: 81.9°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 December
Pago Pago, AS

Average pressure in December - Pago Pago, AS
  • Average pressure in December: 29.78"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 December
Pago Pago, AS

Average wind speed in December - Pago Pago, AS
  • Average wind speed in December: 10.4mph

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 December
Pago Pago, AS

Average humidity in December - Pago Pago, AS
  • Average humidity in December: 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%).

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Average rainfall in December
Pago Pago, AS

Average rainfall in December - Pago Pago, AS
  • Average rainfall in December: 5.91"

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 December
Pago Pago, AS

Average rainfall days in December - Pago Pago, AS
  • Average rainfall days in December: 25.2 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 December
Pago Pago, AS

Average sea temperature in December - Pago Pago, AS
  • Average sea temperature in December: 85°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 December /
Average sunshine in December
Pago Pago, AS

Average daylight in December / Average sunshine in December - Pago Pago, AS
  • Average daylight in December: 12h and 58min

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 December: 9h 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).

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Average sunshine days in December
Pago Pago, AS

Average sunshine days in December - Pago Pago, AS
  • Average sunshine days in December: 3.9 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 December
Pago Pago, AS

Average UV index in December - Pago Pago, AS
  • Average UV index in December: 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 December
Pago Pago, AS

Average cloud cover in December - Pago Pago, AS
  • Average cloud cover in December: 44

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 December
Pago Pago, AS

Average visibility in December - Pago Pago, AS
  • Average visibility in December: 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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