World Resorts USA Grand Island Weather

Grand Island weather in September

Weather in Grand Island: September

Average day temperature: 80.6°F
Average night temperature: 61.8°F
Number of sunny days: 20 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 1 day
Precipitation totals: 0.4 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 92°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during September were 76.3°F and 59.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Grand Island in September is 0.4 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 10.0 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 9.7.

Best time for vacation in Grand Island

Sunniest months:
October 23 days
September 20 days
November 19 days
Warmest months:
August 87.0 °F
July 84.7 °F
June 81.1 °F
Coldest months:
January 30.7 °F
February 34.8 °F
December 38.2 °F
Rainiest months:
May 3 days
June 2 days
July 2 days
Windiest months:
April 12.4 mph
March 11.5 mph
October 10.5 mph

Grand Island on a weather map

Grand Island
+41°F
NW 8 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
+39°F
+73°F
+73°F
+68°F
+61°F
+73°F
+77°F
+68°F
+37°F
+64°F
+57°F
+70°F
+70°F
+70°F
+39°F
24 Hours Forecast
Grand Island
Local time: 20:50
December 23, tuesday
2100
41°F
NW
8 mph
December 24, wednesday
0000
37°F
NW
7 mph
0300
34°F
N
7 mph
0600
34°F
N
7 mph
0900
32°F
NE
6 mph
1200
37°F
NE
8 mph
1500
52°F
NE
6 mph
1800
52°F
E
3 mph
Units of measurement: °C / °F