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

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

September, the first month of the autumn, in Tinian International Airport, is also a hot month, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 77°F (25°C).

Temperature

June through October, with an average high-temperature of 87.8°F (31°C), are the warmest months.

Rainfall

The month with the most rainfall is September when the rain falls for 20 days and typically aggregates up to 12.8" (325mm) of precipitation.

Ocean temperature

In Tinian International Airport, the average water temperature is 84.7°F (29.3°C).
Note: 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.

Daylight

In September, the average length of the day is 12.2h.

Sunshine

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

UV index

Months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an excessive health risk from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 12 in September interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in 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. 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 are the warmest months in Tinian International Airport?

June through October, with an average high-temperature of 87.8°F (31°C), are warmest months.

What is the temperature in September in Tinian International Airport?

The average high-temperature, in September, is 87.8°F (31°C), while the average low-temperature is 77°F (25°C).

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

In September, in Tinian International Airport, the rain falls for 20 days. Throughout September, 12.8" (325mm) of precipitation is accumulated.

What is the wettest month in Tinian International Airport?

September is the month with the most rainfall. Rain falls for 20 days and accumulates 12.8" (325mm) of precipitation.

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

In September, the average ocean temperature in Tinian International Airport is 84.7°F (29.3°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.

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

The average length of the day in September in Tinian International Airport, Northern Mariana Islands, is 12.2h.

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 in Tinian International Airport.

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

The average sunshine in September is 5h.

When is the highest UV index in Tinian International Airport?

Months with the highest UV index in Tinian International Airport, Northern Mariana Islands, are February through September, with an average maximum UV index of 12.

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

In Tinian International Airport, Northern Mariana Islands, the average daily maximum UV index in September is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Tinian International Airport, Northern Mariana Islands, USA
  • Average high temperature in September: 88°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 September: 77°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 September - Tinian International Airport, Northern Mariana Islands, USA
  • Average rainfall in September: 12.8"

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 September - Tinian International Airport, Northern Mariana Islands, USA
  • Average rainfall days in September: 20 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 September - Tinian International Airport, Northern Mariana Islands, USA
  • Average sea temperature in September: 84.8°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 September / Average sunshine in September - Tinian International Airport, Northern Mariana Islands, USA
  • Average daylight in September: 12.2h

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 September: 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 September - Tinian International Airport, Northern Mariana Islands, USA
  • Average UV index in September: 12

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).