Weather in Clear Lake: September
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Average day temperature: | 75.1°F |
| Average night temperature: | 58.0°F | |
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Number of sunny days: | 18 days |
| Day length: | 11.8 - 13.2 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.4 in. | |
| more information | ||
14 days
forecast
forecast
| Clear Lake |
weather in
October
October
| Clear Lake |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 88°F. At the same time the lowest night temperature was 37°F. Daily and nightly averages during September were 73.3°F and 56.8°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 Clear Lake 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 9.7 mph It makes September one of the least windy months of the year.
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: 9.0.
Best time for vacation in Clear Lake
Clear Lake on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Clear Lake
Local time: 04:12
January 13, tuesday
0600
37°F
E
16 mph
16 mph
0900
34°F
E
14 mph
14 mph
1200
37°F
E
17 mph
17 mph
1500
41°F
SE
19 mph
19 mph
1800
37°F
SE
16 mph
16 mph
2100
34°F
SE
16 mph
16 mph
January 14, wednesday
0000
32°F
SE
19 mph
19 mph
0300
30°F
SE
20 mph
20 mph
