Tinian International Airport
Northern Mariana Islands, USA
Long-term weather forecast
Long-term weather forecast

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

December, the first month of the winter, in Tinian International Airport, is also a hot month, with temperature in the range of an average high of 86°F (30°C) and an average low of 75.2°F (24°C).

Temperature

In December, the average high-temperature remains equal as in November - a still hot 86°F (30°C). In Tinian International Airport, 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 4.8" (121mm) of accumulated precipitation. In Tinian International Airport, during the entire year, the rain falls for 247 days and collects up to 79.2" (2012mm) of precipitation.

Ocean temperature

In Tinian International Airport, the average seawater temperature is 82.9°F (28.3°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.

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 in Tinian International Airport.

UV index

Months with the lowest UV index in Tinian International Airport are November and December, with an average maximum UV index of 9. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
The average daily UV index of 9 transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in December in Tinian International Airport?

The average high-temperature, in December, is 86°F (30°C), while the average low-temperature is 75.2°F (24°C).

How many days does it rain in December in Tinian International Airport?

In Tinian International Airport, during December, the rain falls for 22 days and regularly aggregates up to 4.8" (121mm) of precipitation.

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

In December, the average ocean temperature in Tinian International Airport 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.

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

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

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

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

How long on average sun shines in December in Tinian International Airport?

The average sunshine in December is 5h.

What are the months with the lowest UV index in Tinian International Airport?

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

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

The average daily maximum UV index in December in Tinian International Airport is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from unprotected exposure to the UV radiation.
Average temperature in December - Tinian International Airport, Northern Mariana Islands, USA
  • Average high temperature in December: 86°F

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).
Coldest months (with the lowest average low temperature) are February and March (73°F).

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 lowest rainfall) is February (2.9").

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 lowest number of rainy days is April (18 days).

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).
Coldest months (with the lowest average sea temperature) are January, February and March (82°F).

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 shortest days is December (Average daylight: 11.2h).

  • Average sunshine in December: 5h

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

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).