Is Milwaukee hot in September?
Days are typically mild at 22.5°C, while nights average 13.3°C.
United States · 1991–2020 normal
Milwaukee in
September.
Typical September weather in Milwaukee: 22.5°C by day, 13.3°C at night, 80 mm of rain over 6.7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high22.5°C
Typical low13.3°C
Rain80 mm
Wet days6.7
In the year-round weather comparison, September scores 82 out of 100 (June leads the year at 82). Daylight is calculated as 12 h 26 from latitude 43.04°. Open-water sea temperature is 18.8°C (10 km from the place centre).
September at a glance
What is Milwaukee like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 80 mm across about 7 wet days.
How much daylight is there?
There are about 12 h 26 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 2 of 12 in our weather comparison; June ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5263045
- NOAA station
- USW00014839 · MILWAUKEE MITCHELL AP
- Station distance
- 9.3 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Milwaukee is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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