The weather in September in Okoboji

It's warm in September in Okoboji with an average temperature of 24°C. Temperatures this month range from a low of 21°C to a high of 28°C. At night, you can expect temperatures between 8°C and 16°C.

Looking for great weather? September is a good time to be in Okoboji. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Okoboji, Iowa. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2022, Okoboji reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 8°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 24°C.

Rainfall amount

In September, there is an average of 97 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in September for Okoboji

Click on any day in September to get detailed info about the usual weather on that day in Okoboji. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Okoboji New York
Average temperature 24°C 27°C
Max. temperature 28°C 31°C
Min. temperature 8°C -5°C
Total precipitation 97 mm 57 mm
Rainy days 13 days 9 days

Start of September

The month of September starts in Okoboji with warm temps, averaging around 25°C during the day and nights around 14°C.

Mid September

By mid-September, daytime temps stay steady at around 25°C, with nights around 13°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Okoboji is around 23°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 4 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

Check out the climate of Okoboji for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Okoboji, Iowa. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Okoboji

Temperature in September in Okoboji over the years

Precipitation charts

These charts show the average amount of precipitation in September in Okoboji, Iowa. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Okoboji

Total precipitation in September in Okoboji over the years

Daily UV index in September in Okoboji

This chart shows the average daily UV index in September in Okoboji, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Okoboji

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Average weather in Okoboji by month

Click on a month below to see detailed weather info for Okoboji. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.