December weather forecast and climate
Pago Pago, AS

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

Weather in December

The first month of the summer, December, is still a warm month in Pago Pago, American Samoa, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 81.9°F (27.7°C).

Temperature

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

Heat index

The average heat index is evaluated at a hot 90.3°F (32.4°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, wind, metabolic differences, and pregnancy affect individual temperature impact. 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 especially crucial for babies and toddlers. 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

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

Rainfall

In Pago Pago, during 25.2 rainfall days, 5.91" (150mm) of precipitation is typically accumulated. In Pago Pago, during the entire year, the rain falls for 280 days and collects up to 49.96" (1269mm) of precipitation.

Ocean temperature

In Pago Pago, in December, the average water temperature is 85.1°F (29.5°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

December has the longest days of the year, with an average of 13h of daylight.

Sunshine

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

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. 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 threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Pago Pago?

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

What is the average humidity in December in Pago Pago?

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

How much does it rain in Pago Pago in December?

In Pago Pago, in December, it is raining for 25.2 days, with typically 5.91" (150mm) of accumulated precipitation.

What is the water temperature in December in Pago Pago?

In December, the average ocean temperature in Pago Pago, American Samoa, is 85.1°F (29.5°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

When are the longest days in Pago Pago?

The month with the longest days is December, with an average of 13h of daylight.

How many hours of daylight does Pago Pago have in December?

In Pago Pago, American Samoa, the average length of the day in December is 13h.

What month has the most sunshine in Pago Pago?

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

How long on average sun shines in December in Pago Pago?

In Pago Pago, the average sunshine in December is 9.7h.

What is the month with the highest UV index in Pago Pago?

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

What is the month with the lowest UV index in Pago Pago?

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

What is the UV index intensity in December in Pago Pago?

The average daily maximum UV index in December in Pago Pago is 7. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays.

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"

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

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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%

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: 13h

The month with the longest days is December (Average daylight: 13h).
The month with the shortest days is June (Average daylight: 11.3h).

  • Average sunshine in December: 9.7h

The month with the most sunshine is December (Average sunshine: 9.7h).
The month with the least sunshine is July (Average sunshine: 7.2h).

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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

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

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

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