Chesterton weather in September 2026

Q: How hot is it in Chesterton in September?

Daytime temperatures usually reach 25°C in Chesterton in September with low heat and humidity, falling to 13°C at night.

Q: How sunny is it in Chesterton in September?

There are normally 8 hours of bright sunshine each day in Chesterton in September - that's 63% of daylight hours.

Q: Does it rain in Chesterton in September?

There are usually 8 days with some rain in Chesterton in September and the average monthly rainfall is 75mm.

Expect daytime maximum temperatures of 75°F in Chesterton, Indiana in September based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 3.8 inches of rainfall in the month.

75
75°F max day temperature
8
8 hours of sunshine per day
9
9 days with some rainfall
54
54°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.8
3.8 inches of monthly rainfall
6
6 (High) UV index
66
66°F sea temperature

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Recommended for Indiana

The September weather guide for Indiana (Chesterton) 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)

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How hot is it in Chesterton in September?

Daytime temperatures usually reach 77°F in Chesterton in September with low heat and humidity, falling to 55°F at night.

How sunny is it in Chesterton in September?

There are normally 8 hours of bright sunshine each day in Chesterton in September - that's 63% of daylight hours.

Does it rain in Chesterton in September?

There are usually 8 days with some rain in Chesterton in September and the average monthly rainfall is 3.0 inches.

Chesterton September sunrise & sunset times

Browse the sunrise and sunset times for Chesterton in September 2026. Select a month to view Chesterton sunrise and sunset times for the next 12 months.

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