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 also a hot month, with an average temperature ranging between min 75.2°F (24°C) and max 86°F (30°C).

Temperature

In December, the average high-temperature remains equal as in November - a still hot 86°F (30°C). The average low-temperature, in December, is 75.2°F (24°C).

Rainfall

In Tinian International Airport, during December, the rain falls for 22 days and regularly aggregates up to 4.76" (121mm) of precipitation. Throughout the year, in Tinian International Airport, there are 247 rainfall days, and 79.21" (2012mm) of precipitation is accumulated.

Ocean temperature

In Tinian International Airport, Northern Mariana Islands, 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

The month with the shortest days in Tinian International Airport is December, with an average of 11h and 16min of daylight.
On the first day of the month, sunrise is at 6:27 am and sunset at 5:45 pm. On the last day of December, in Tinian International Airport, sunrise is at 6:42 am and sunset at 5:57 pm ChST.

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 in Tinian International Airport. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. 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. 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. 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, in December, it is raining for 22 days, with typically 4.76" (121mm) of accumulated precipitation.

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

In Tinian International Airport, in December, the average water temperature 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 11h and 16min of daylight.

What is the average length of the day in December in Tinian International Airport?

The average day length in December is 11h and 16min.

What time are sunrise and sunset in December in Tinian International Airport?

In December, on the first day of the month, sunrise is at 6:27 am and sunset at 5:45 pm. On the last day of the month, in Tinian International Airport, sunrise is at 6:42 am and sunset at 5:57 pm ChST.

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

The months with the least sunshine in Tinian International Airport are August through December, with an average of 5h of sunshine.

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

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

When is the lowest UV index in Tinian International Airport?

The months with the lowest UV index are November and December, with an average maximum UV index of 9.

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

In December, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average rainfall days
Average sunshine
Average UV index

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).
The months with the lowest average high temperature are January, February and March (84°F).

  • Average low temperature in December: 75°F

The 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: 11h and 16min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 16min).

  • Average sunshine in December: 5h

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

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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

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

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