September weather forecast
Saipan, Northern Mariana Islands, USA

September, the first month of the autumn in Saipan, is also a moderately hot month, with an average temperature ranging between min 75°F (23.9°C) and max 83.8°F (28.8°C).

Temperature

In September, the average high-temperature is practically the same as in August - a still moderately hot 83.8°F (28.8°C). In September, the average low-temperature is 75°F (23.9°C).

Rainfall

In September, in Saipan, Northern Mariana Islands, the rain falls for 19 days. Throughout September, 11.65" (296mm) of precipitation is accumulated. In Saipan, during the entire year, the rain falls for 244 days and collects up to 83.39" (2118mm) of precipitation.

Ocean temperature

June through November, with an average ocean temperature of 84.2°F (29°C), are months with the warmest 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 Saipan, the average length of the day in September is 12h and 13min.
On the first day of September in Saipan, Northern Mariana Islands, sunrise is at 6:04 am and sunset at 6:29 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 6:07 pm ChST.

Sunshine

The months with the least sunshine in Saipan, Northern Mariana Islands, are August through December, with an average of 5h of sunshine.

UV index

The months with the highest UV index in Saipan, Northern Mariana Islands, are February through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin 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 the 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.