September weather forecastSeward, NE
September
Weather in September
In Seward, September is the transition time from summer to autumn, marked by slightly lower temperatures forming highs of around 77°F (25°C) and lows of 57°F (13.9°C). Weather-wise when compared to August, the temperature becomes notably cooler. The decrease in daylight hours to an average of 12.5 significant of the shorter fall days. However, enjoy the mild and pleasant weather, perfect for outdoor explorations. Wrapped under moderately warm sunlit skies, September in Seward paints a colorful landscape.Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 83.7°F (28.7°C) to a still warm 77°F (25°C). Nighttime temperatures hover around an average low of 57°F (13.9°C) in September.Humidity
In Seward, the average relative humidity in September is 70%.Rainfall
In September, in Seward, Nebraska, the rain falls for 10.9 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. Throughout the year, in Seward, there are 98.2 rainfall days, and 11.06" (281mm) of precipitation is accumulated.Snowfall
In Seward, snow does not fall in June through September.Daylight
In Seward, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:56 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:11 pm CDT.
Sunshine
In Seward, Nebraska, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Seward, NE
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Seward, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Seward, NE
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Seward, NE
- Average humidity in September: 70%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (64%).
Average rainfall in September
Seward, NE
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.28").
Average rainfall days in September
Seward, NE
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in September
Seward, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Seward, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Seward, NE
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Seward, NE
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is November (24 days).
The month with the least sunshine days is June (14.2 days).
Average UV index in September
Seward, NE
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Seward, NE
- Average cloud cover in September: 28
The months with the most cloud cover are January and March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Seward, NE
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





