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Omaha in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Omaha in September and see if it is worth visiting.
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September

Weather in Omaha in September 2025

Good Weather
Warm
☀️
Sunny
Are you considering a trip to Omaha in September? Well, the weather is usually on your side with an average maximum temperature of +79°F and about 12 sunny days. Just keep in mind that there may be some rain, with an average of 7 rainy days and 78 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+79°F
Avg. max. temperature
+28°F
Min.
+99°F
Max.
78 mm
Total precipitation
68%
Avg. humidity
3 m/s
Avg. wind
12 ☀️
Sunny Days
6 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: Omaha has good weather in September.

Average temperature in Omaha in September

Here are the expected maximum, average and minimum temperatures in Omaha for September based on the historical data.
Last Year
Historical Data

The temperature in September is +84°F on average, with a range between a maximum of +99°F during the day and a minimum of +50°F at night.

The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +90°F to +93°F.

Is Omaha warm or cold in September?

Omaha is typically warm in September.

Maximum temperatures go down compared to the previous month from +84°F to +79°F. The minimum temperature also goes down from +66°F to +57°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how September is compared to other months in Omaha:

Climate in Omaha in September

Omaha weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+84°F+79°F+64°F
Min. temperature
+43°F+28°F+10°F
Max. temperature
+106°F+99°F+93°F
Rainfall
98 mm78 mm64 mm
Wind
3 m/s3 m/s4 m/s
Humidity
71%68%65%
Air pressure
1014 HPa1015 HPa1016 HPa
Sunny days
81211
Cloudy days
7610
Rainy days
877
Snowy days
001

September weather is still as good as in August. It’s getting colder in September. From +84°F in the day, the average maximum temperature lowers to +79°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 98 mm to 78 mm. It feels drier, as humidity decreases from 71% to 68%. The average wind speed doesn’t change much during September, staying around 3 m/s. The good news is there are likely to be more sunny days in September, from 8 to 12.

October brings much the same weather, it remains good.

Wind

Wind speed in Omaha in September based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Omaha is gradually increasing during September, going from 6 m/s to 7 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Omaha based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 37%, leading to total precipitation of around 58 mm. The maximum amount of rainfall per day is around 15 mm, which is considered light rain. September is a pretty wet month with over 11 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Omaha wettest month is June, where a typical day has a 27% chance of precipitation and 130 mm of rainfall per day. January, on the other hand, is the driest month with a mere 3% chance of precipitation and 5 mm of rainfall per day.

How was the weather last September in Omaha?

This is the weather in Omaha in September 2023:
1 September
☀️
+90°F
2 September
☀️
+98°F
3 September
☀️
+99°F
4 September
☀️
+95°F
5 September
☀️
+90°F
6 September
🌫️
+81°F
7 September
☀️
+84°F
8 September
☀️
+86°F
9 September
☀️
+86°F
10 September
☁️
+80°F
11 September
☁️
+74°F
12 September
☀️
+78°F
13 September
☀️
+79°F
14 September
☁️
+79°F
15 September
☁️
+76°F
16 September
☁️
+79°F
17 September
🌫️
+76°F
18 September
☀️
+88°F
19 September
☁️
+89°F
20 September
☁️
+83°F
21 September
☁️
+81°F
22 September
🌧️
+77°F
23 September
🌧️
+76°F
24 September
☀️
+80°F
25 September
☀️
+78°F
26 September
☁️
+75°F
27 September
☀️
+75°F
28 September
☀️
+85°F
29 September
☁️
+94°F
30 September
☁️
+93°F
In September 2023 Omaha had 15 sunny days, 11 cloudy days, and 2 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +99°F and a minimum of +73°F. The average humidity was 65%, with a maximum of 100% and a minimum of 29%. The average wind speed was 4 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Omaha climate has changed over the last 43 years.

The climate in Omaha in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1993 (+58°F) and the highest in 2012 (+68°F). The driest year was 2000 with only 479 mm of rainfall, and the wettest year was 2019 with 1494 mm.

FAQ

Frequently asked questions about the weather in Omaha in September:

Is September a good time to visit Omaha?

September is a really good time to go to Omaha. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Omaha.

Can you sunbathe in Omaha in September?

September is warm in Omaha. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Omaha rainy in September?

Omaha is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Omaha in September?

The amount of sunny days in Omaha during September varies; prepare for a mix of clouds and sun.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Omaha

Source of the data

For this page, we’ve looked at the typical weather in Omaha, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.