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Saipan weather in September 2025
Expect daytime maximum temperatures of 88°F in Saipan, Northern Mariana Islands in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 12.8 inches of rainfall in the month.
- 88°F max day temperature
88
- 5 hours of sunshine per day
- 19 days with some rainfall
19
- 77°F min night temperature
77
- 12 hours of daylight per day
12
- Very High heat & humidity
VH
- 12.8 inches of monthly rainfall
12.8
- 11+ (Extreme) UV index
11
- 84°F sea temperature
84
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The September weather guide for Northern Mariana Islands (Saipan) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
How hot is it in Saipan in September?
Daytime temperatures usually reach 88°F in Saipan in September with very high heat and humidity, falling to 77°F at night.
How sunny is it in Saipan in September?
There are normally 5 hours of bright sunshine each day in Saipan in September - that's 43% of daylight hours.
How warm is the sea around Saipan in September?
The average sea temperature around Saipan in September is 84°F.
Does it rain in Saipan in September?
There are usually 19 days with some rain in Saipan in September and the average monthly rainfall is 12.8 inches.
What is the chance of a typhoon in Saipan in September?
On average 2.5 days in September in Saipan are likely to be affected by the passage of one or more tropical storms.
Saipan September sunrise & sunset times
Browse the sunrise and sunset times for Saipan in September 2025. Select a month to view Saipan sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 06:04 | 18:29 |
Monday, 15th September 2025 | 06:06 | 18:19 |
Tuesday, 30th September 2025 | 06:07 | 18:07 |
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