Weather in St. George: September
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Average day temperature: | 92.6°F |
| Average night temperature: | 70.4°F | |
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Number of sunny days: | 27 days |
| Day length: | 11.8 - 12.9 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.1 in. | |
| more information | ||
14 days
forecast
forecast
| St. George |
weather in
October
October
| St. George |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 99°F. At the same time the lowest night temperature was 51°F. Daily and nightly averages during September were 89.2°F and 62.0°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 St. George in September is 0.1 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 5.3 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: 11.1.
Best time for vacation in St. George
St. George on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. George
Local time: 16:03
December 14, sunday
1800
61°F
SW
2 mph
2 mph
2100
48°F
W
3 mph
3 mph
December 15, monday
0000
43°F
W
4 mph
4 mph
0300
37°F
W
4 mph
4 mph
0600
36°F
W
3 mph
3 mph
0900
43°F
W
3 mph
3 mph
1200
59°F
W
2 mph
2 mph
1500
64°F
SE
1 mph
1 mph
