Mild
Average highs are around 20°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 6.6h per day, enough for a balanced month. Rainfall averages 103mm, so some wet days are possible.
Monthly averages
Temp
20°C
Rain
103mm
Sun
6.6h
Weather score
45
Mixed
Mild
Average highs are around 20°C, so days are mild rather than hot.
Showers
Rainfall averages 103mm, so some wet days are possible.
Some sun
Sunshine averages 6.6h per day, enough for a balanced month.
Map
Compare Wausau, Wisconsin, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September20°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.
September103mm average rain
September is one of Wausau'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.
September6.6 hours average sun
September sits close to Wausau'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.
September45 weather score
September scores below Wausau's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.