Weather on September 12 at Big Bend
Big Bend National Park
Based on 53 years of data from Alpine, TX
Elevation Note: Big Bend sits at 3,800 ft. Expect temperatures 13°F cooler than the data shown below, which comes from Alpine, TX at a lower elevation.
Planning Your Visit
September 12th in Big Bend National Park (via Alpine, TX) typically brings warm fall weather, with average highs around 85°F and lows near 59°F — a 26°F daily swing. Over 53 years of records, the warmest September 12th was in 1978 (79°F average), while the coldest was 1975 (63°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 25% of September 12th dates historically, with the wettest September 12th recording 5.33" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.
Planning for September 12th in Big Bend? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 86°F | 64°F | -- | -- |
| 2024 | 91°F | 58°F | -- | -- |
| 2023 | 79°F | 62°F | 0.03" | -- |
| 2022 | 82°F | 57°F | -- | -- |
| 2021 | 88°F | 55°F | -- | -- |
| 2020 | 86°F | 55°F | -- | -- |
| 2019 | 89°F | 65°F | 0.56" | 0" |
| 2018 | 84°F | 55°F | 0" | 0" |
| 2017 | 86°F | 50°F | 0" | 0" |
| 2016 | 84°F | 60°F | 0" | 0" |
| 2015 | 91°F | 59°F | 0" | -- |
| 2014 | 83°F | 63°F | 0.03" | -- |
| 2013 | 83°F | 68°F | 0" | 0" |
| 2012 | 97°F | 60°F | 0" | 0" |
| 2011 | 89°F | 56°F | 0" | -- |
| 2010 | 87°F | 58°F | 0" | 0" |
| 2009 | 78°F | 55°F | 0.03" | 0" |
| 2008 | 74°F | 65°F | 0.58" | 0" |
| 2007 | 83°F | 62°F | 0" | 0" |
| 2005 | 87°F | 64°F | 0" | 0" |
| 2004 | 86°F | 53°F | 0" | 0" |
| 2003 | 89°F | 55°F | 0" | 0" |
| 2002 | 87°F | 60°F | 0" | 0" |
| 2001 | 85°F | 62°F | 0" | 0" |
| 2000 | 94°F | 64°F | 0" | 0" |
| 1998 | 79°F | 61°F | 0" | 0" |
| 1997 | 90°F | 65°F | 0.89" | 0" |
| 1996 | 77°F | 60°F | 1.65" | 0" |
| 1995 | 86°F | 62°F | 0.69" | 0" |
| 1994 | 82°F | 59°F | 0" | 0" |
| 1993 | 80°F | 66°F | 0" | 0" |
| 1992 | 80°F | 55°F | 0.03" | 0" |
| 1991 | 81°F | 61°F | 0.25" | 0" |
| 1990 | 80°F | 53°F | 0" | 0" |
| 1989 | 87°F | 60°F | 0" | 0" |
| 1988 | 90°F | 58°F | 0" | 0" |
| 1987 | 90°F | 58°F | 0" | 0" |
| 1986 | 82°F | 51°F | 0" | 0" |
| 1985 | 80°F | 61°F | 0.53" | 0" |
| 1984 | 90°F | 64°F | 0" | 0" |
| 1983 | 90°F | 61°F | 0" | 0" |
| 1982 | 88°F | 57°F | 0" | 0" |
| 1981 | 83°F | 58°F | 0" | 0" |
| 1980 | 85°F | 62°F | 0" | 0" |
| 1979 | 84°F | 48°F | 0" | 0" |
| 1978 | 90°F | 68°F | 0" | 0" |
| 1977 | 87°F | 63°F | 0" | 0" |
| 1976 | 87°F | 60°F | 0.13" | 0" |
| 1975 | 79°F | 48°F | 5.33" | 0" |
| 1974 | 91°F | 65°F | 0" | 0" |
| 1973 | 87°F | 62°F | 0" | 0" |
| 1972 | 85°F | 62°F | 0" | 0" |
| 1971 | 82°F | 52°F | 0" | 0" |