West Allis Weather in September

West Allis in September sees high temperatures, with highs around 24°C (75°F) and overnight lows of 12°C (54°F). Rainfall is fairly high at around 83 mm (3.3 in) on average, so pack waterproofs just in case.

Rainfall in West Allis in September

Based on our climate data of the past 30 years, about 10 days of rain are anticipated, with 83 mm (3.3 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in West Allis in September

West Allis has perfect weather in September, with days reaching 24°C (75°F) and nights cooling to 12°C (54°F). Overall, the month follows a fairly predictable daily temperature pattern. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in West Allis in September

The city usually sees around 216 hours of sunlight, indicating many sunny days — a great month for sightseeing.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit the United States of America, check out our West Allis's climate page.

West Allis Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 33%  

Precipitation 83 mm (3.3 in)  

Rainy days 10 days  

Humidity 75% *  

Sunshine 216 hours *  

Percentage Sunshine 57% *  

* Data from: Milwaukee, the United States of America (7 KM, 4 Miles).

What to Wear in West Allis in September

For West Allis in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in West Allis in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our West Allis's climate page.

More climate data for West Allis

Temperature Rainfall Sunshine Humidity

See the full West Allis climate overview or explore weather in the United States of America.