September weather in Cibolo, TX
The average temperature in Cibolo in September is 79.3°F (68.4°F–90.1°F). Average precipitation: inches.
September is a fall month in Cibolo, and is warmer than the annual average of 69.3°F. Daily temperatures swing about 21.7°F between overnight low and afternoon high. Daylight averages about 12h 10m. For travel, September is hot.
Avg High
90.1°F
Avg Low
68.4°F
Precipitation
in
Daylight
12h 10m
September records in Cibolo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1951) | 66.0°F (1950) | 0.74 in (1953) |
| September 2 | 100.9°F (2023) | 69.1°F (1960) | 2.08 in (1967) |
| September 3 | 100.9°F (2025) | 68.0°F (1955) | 2.08 in (2024) |
| September 4 | 102.0°F (2023) | 64.9°F (1952) | 3.90 in (1953) |
| September 5 | 102.9°F (2023) | 62.1°F (1952) | 1.01 in (1968) |
| September 6 | 102.9°F (2023) | 61.0°F (1953) | 1.18 in (2018) |
| September 7 | 102.9°F (2023) | 63.0°F (1953) | 0.49 in (1958) |
| September 8 | 105.1°F (2023) | 63.0°F (1957) | 1.78 in (1962) |
| September 9 | 100.9°F (2023) | 60.1°F (1957) | 2.34 in (2020) |
| September 10 | 100.0°F (1950) | 57.9°F (2020) | 2.54 in (1952) |
| September 11 | 97.0°F (1963) | 57.0°F (1968) | 1.30 in (2018) |
| September 12 | 98.1°F (2025) | 57.0°F (1959) | 1.36 in (1963) |
| September 13 | 98.1°F (1965) | 57.9°F (1960) | 1.68 in (1951) |
| September 14 | 99.0°F (2023) | 59.0°F (1960) | 0.61 in (2018) |
| September 15 | 98.1°F (1950) | 60.1°F (1961) | 0.85 in (2018) |
| September 16 | 98.1°F (1954) | 61.0°F (1960) | 0.74 in (1949) |
| September 17 | 97.0°F (2021) | 55.0°F (1961) | 0.68 in (1952) |
| September 18 | 100.0°F (2019) | 52.0°F (1961) | 0.51 in (1966) |
| September 19 | 100.9°F (2019) | 54.0°F (1968) | 2.24 in (2019) |
| September 20 | 99.0°F (1956) | 60.1°F (2020) | 2.42 in (1967) |
| September 21 | 99.0°F (2023) | 57.9°F (1966) | 3.69 in (1967) |
| September 22 | 99.0°F (2023) | 59.0°F (1966) | 4.41 in (1957) |
| September 23 | 100.0°F (2023) | 55.0°F (2021) | 2.06 in (1957) |
| September 24 | 102.0°F (2023) | 54.0°F (2021) | 0.80 in (1960) |
| September 25 | 99.0°F (2024) | 57.9°F (2021) | 1.63 in (1957) |
| September 26 | 98.1°F (2023) | 57.0°F (2021) | 1.67 in (1965) |
| September 27 | 100.9°F (1953) | 53.1°F (1968) | 1.21 in (1964) |
| September 28 | 98.1°F (1953) | 48.9°F (1967) | 2.31 in (2021) |
| September 29 | 96.1°F (2023) | 46.9°F (1967) | 2.15 in (2021) |
| September 30 | 96.1°F (2023) | 46.9°F (2020) | 0.66 in (1958) |