Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Oconomowoc, Wisconsin, United States in September
Weather score54Mixed
Mixed for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 7h per day, enough for a balanced month. Rainfall averages 94mm, so some wet days are possible.
September weather
Monthly averages
Temp
22°C
Rain
94mm
Sun
7h
Weather score
54
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 94mm, so some wet days are possible.
Some sun
Sunshine averages 7h per day, enough for a balanced month.
Map
Weather map
Compare Oconomowoc, Wisconsin, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September94mm average rain
September is one of Oconomowoc's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to March and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7 hours average sun
September sits close to Oconomowoc's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September54 weather score
September sits close to Oconomowoc's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
