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Stamford weather in September 2026
Expect daytime maximum temperatures of 73°F in Stamford, Connecticut in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.9 inches of rainfall in the month.
- 73°F max day temperature
73 - 7 hours of sunshine per day
- 8 days with some rainfall
8 - 52°F min night temperature
52 - 12 hours of daylight per day
12 - No heat & humidity
0 - 3.9 inches of monthly rainfall
3.9 - 6 (High) UV index
6
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Recommended for Connecticut
The September weather guide for Connecticut (Stamford) 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 Stamford in September?
Daytime temperatures usually reach 73°F in Stamford in September, falling to 52°F at night.
How sunny is it in Stamford in September?
There are normally 7 hours of bright sunshine each day in Stamford in September - that's 59% of daylight hours.
Does it rain in Stamford in September?
There are usually 9 days with some rain in Stamford in September and the average monthly rainfall is 3.7 inches.
What is the chance of a hurricane in Stamford in September?
On average less than 1 day in September in Stamford is likely to be affected by the passage of one or more tropical storms.
Stamford September sunrise & sunset times
Browse the sunrise and sunset times for Stamford in September 2026. Select a month to view Stamford sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Tuesday, 1st September 2026 | 05:21 | 18:27 |
| Tuesday, 15th September 2026 | 05:35 | 18:03 |
| Wednesday, 30th September 2026 | 05:50 | 17:38 |
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