December weather forecast
Tinian International Airport, Northern Mariana Islands, USA

Weather in December

December, the first month of the winter, in Tinian International Airport, is still a hot month, with average temperature varying between 86°F (30°C) and 75.2°F (24°C).

Temperature

In Tinian International Airport, the average high-temperature remains the same as in November - a still tropical 86°F (30°C). In December, in Tinian International Airport, Northern Mariana Islands, the average low-temperature is 75.2°F (24°C).

Rainfall

In Tinian International Airport, in December, it is raining for 22 days, with typically 4.76" (121mm) of accumulated precipitation. In Tinian International Airport, during the entire year, the rain falls for 247 days and collects up to 79.21" (2012mm) of precipitation.

Ocean temperature

In Tinian International Airport, in December, the average water temperature is 82.9°F (28.3°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 shortest days of the year in Tinian International Airport, with an average of 11.2h of daylight.

Sunshine

August through December, with an average of 5h of sunshine, are months with the least sunshine.

UV index

November and December, with an average maximum UV index of 9, are months with the lowest UV index. A UV Index value of 8 to 10 symbolizes a very high health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. 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 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

How much does it rain in Tinian International Airport in December?

In Tinian International Airport, Northern Mariana Islands, in December, during 22 rainfall days, 4.76" (121mm) of precipitation is typically accumulated.

What is the ocean temperature in December in Tinian International Airport?

In Tinian International Airport, Northern Mariana Islands, the average seawater temperature in December is 82.9°F (28.3°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.

What is the month with the shortest days in Tinian International Airport?

December has the shortest days of the year in Tinian International Airport, with an average of 11.2h of daylight.

How many hours of daylight does Tinian International Airport have in December?

In Tinian International Airport, the average length of the day in December is 11.2h.

What is the month with the least sunshine in Tinian International Airport?

August through December, with an average of 5h of sunshine, are months with the least sunshine.

How many hours of sunshine does Tinian International Airport have in December?

The average sunshine in December in Tinian International Airport, Northern Mariana Islands, is 5h.

What is the month with the lowest UV index in Tinian International Airport?

November and December, with an average maximum UV index of 9, are months with the lowest UV index in Tinian International Airport, Northern Mariana Islands.

What is the UV index intensity in December in Tinian International Airport?

The average daily maximum UV index in December in Tinian International Airport is 9. A UV Index estimate of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Tinian International Airport, Northern Mariana Islands, USA

Average temperature in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average high temperature in December: 86°F

The warmest months (with the highest average high temperature) are June, July, August, September and October (88°F).
Months with the lowest average high temperature are January, February and March (84°F).

  • Average low temperature in December: 75°F

Months with the highest average low temperature are May, June, July, August, September, October and November (77°F).
The coldest months (with the lowest average low temperature) are February and March (73°F).

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Average rainfall in December
Tinian International Airport, Northern Mariana Islands, USA

Average rainfall in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average rainfall in December: 4.8"

The wettest month (with the highest rainfall) is September (12.8").
The driest month (with the least rainfall) is February (2.9").

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Average rainfall days in December
Tinian International Airport, Northern Mariana Islands, USA

Average rainfall days in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average rainfall days in December: 22 days

The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is April (18 days).

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Average sea temperature in December
Tinian International Airport, Northern Mariana Islands, USA

Average sea temperature in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average sea temperature in December: 83°F

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

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Average daylight in December /
Average sunshine in December
Tinian International Airport, Northern Mariana Islands, USA

Average daylight in December / Average sunshine in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average daylight in December: 11.2h

The month with the longest days is June (Average daylight: 13h).
The month with the shortest days is December (Average daylight: 11.2h).

  • Average sunshine in December: 5h

Months with the most sunshine are March, April, May and June (Average sunshine: 7h).
Months with the least sunshine are August, September, October, November and December (Average sunshine: 5).

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Average UV index in December
Tinian International Airport, Northern Mariana Islands, USA

Average UV index in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average UV index in December: 9

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
Months with the lowest UV index are November and December (UV index 9).

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