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

Weather in January

January, like December, in Tinian International Airport, Northern Mariana Islands, is a moderately hot winter month, with an average temperature varying between 84.2°F (29°C) and 75.2°F (24°C).

Temperature

The coldest months are January through March, with an average high-temperature of 84.2°F (29°C).

Rainfall

In Tinian International Airport, it is raining for 22 days, with typically 4.25" (108mm) 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

January through March, with an average ocean temperature of 82°F (27.8°C), are months with the coldest seawater.
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

In January, the average length of the day is 11h and 21min.
On the first day of the month, sunrise is at 6:43 am and sunset at 5:58 pm. On the last day of January, sunrise is at 6:46 am and sunset at 6:15 pm ChST.

Sunshine

The average sunshine in January in Tinian International Airport is 6h.

UV index

In Tinian International Airport, the average daily maximum UV index in January is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 10 in January transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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.
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FAQ

What are the coldest months in Tinian International Airport?

The coldest months in Tinian International Airport, Northern Mariana Islands, are January through March, with an average high-temperature of 84.2°F (29°C).

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

In Tinian International Airport, in January, during 22 rainfall days, 4.25" (108mm) of precipitation is typically accumulated.

What months are the ocean coldest in Tinian International Airport?

The months with the coldest seawater are January through March, with an average ocean temperature of 82°F (27.8°C).

How warm is the water in January in Tinian International Airport?

In Tinian International Airport, Northern Mariana Islands, the average seawater temperature in January is 82°F (27.8°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

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

The average day length in January in Tinian International Airport is 11h and 21min.

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

On the first day of January in Tinian International Airport, sunrise is at 6:43 am and sunset at 5:58 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:15 pm ChST.

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

The average sunshine duration in January in Tinian International Airport is 6h.

How high is the UV index in January in Tinian International Airport?

In January, the average daily maximum UV index in Tinian International Airport is 10. A UV Index value of 8 to 10 symbolizes a very high hazard to health from exposure to the Sun's UV radiation.
Average rainfall days
Average sunshine
Average UV index

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

Average temperature in January - Tinian International Airport, Northern Mariana Islands, USA
  • Average high temperature in January: 84°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 January: 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 January
Tinian International Airport, Northern Mariana Islands, USA

Average rainfall in January - Tinian International Airport, Northern Mariana Islands, USA
  • Average rainfall in January: 4.3"

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 January
Tinian International Airport, Northern Mariana Islands, USA

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

Average sea temperature in January - Tinian International Airport, Northern Mariana Islands, USA
  • Average sea temperature in January: 82°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 January /
Average sunshine in January
Tinian International Airport, Northern Mariana Islands, USA

Average daylight in January / Average sunshine in January - Tinian International Airport, Northern Mariana Islands, USA
  • Average daylight in January: 11h and 21min

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 January: 6h

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 January
Tinian International Airport, Northern Mariana Islands, USA

Average UV index in January - Tinian International Airport, Northern Mariana Islands, USA
  • Average UV index in January: 10

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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