Stillwater Weather in September

With daytime temperatures of 22°C (72°F) and nighttime lows of 11°C (52°F), September in Stillwater brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 84 mm (3.3 in) falls on average.

Rainfall in Stillwater in September

Records from the past 30 years suggest around 11 days of rain, with 84 mm (3.3 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Stillwater in September

If you're visiting Stillwater in September, expect excellent temperatures with highs of 22°C (72°F) and overnight lows of 11°C (52°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Stillwater in September

Expect sunny days throughout the month, with an estimated 232 hours of sunshine. This makes it a pleasant time to visit Stillwater.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and September typically offer the best weather for Stillwater.

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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 Stillwater's climate page.

Stillwater Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 22°C (72°F)  

Chance of Rain 35%  

Precipitation 84 mm (3.3 in)  

Rainy days 11 days  

Humidity 70% *  

Sunshine 232 hours *  

Percentage Sunshine 62% *  

* Data from: Minneapolis, the United States of America (37 KM, 23 Miles).

What to Wear in Stillwater in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Stillwater in September

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

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 Stillwater's climate page.

More climate data for Stillwater

Temperature Rainfall Sunshine Humidity

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