- Kids stay & eat for free at Marriot Bonvoy
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- Valid for up to 2 adults & 2 kids aged up to 12
Pierre weather in September 2026
Expect daytime maximum temperatures of 75°F in Pierre, South Dakota in September based on long-term weather averages. There are 9 hours of sunshine per day on average.
- 75°F max day temperature
75 - 9 hours of sunshine per day
- 6 days with some rainfall
6 - 48°F min night temperature
48 - 12 hours of daylight per day
12 - No heat & humidity
0 - 1.3 inches of monthly rainfall
1.3 - 6 (High) UV index
6
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Recommended for South Dakota
The September weather guide for South Dakota (Pierre) 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)
More about the USA
How hot is it in Pierre in September?
Daytime temperatures usually reach 75°F in Pierre in September, falling to 48°F at night.
How sunny is it in Pierre in September?
There are normally 9 hours of bright sunshine each day in Pierre in September - that's 69% of daylight hours.
Does it rain in Pierre in September?
There are usually 6 days with some rain in Pierre in September and the average monthly rainfall is 1.3 inches.
Pierre September sunrise & sunset times
Browse the sunrise and sunset times for Pierre in September 2026. Select a month to view Pierre sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Tuesday, 1st September 2026 | 06:04 | 19:17 |
| Tuesday, 15th September 2026 | 06:21 | 18:52 |
| Wednesday, 30th September 2026 | 06:38 | 18:24 |
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