Weather on September 11 at Channel Islands
Channel Islands National Park
Based on 55 years of data from Ventura, CA
Planning Your Visit
September 11th in Channel Islands National Park (via Ventura, CA) typically brings warm fall weather, with average highs around 85°F and lows near 54°F — a 31°F daily swing. Over 55 years of records, the warmest September 11th was in 1971 (84°F average), while the coldest was 1985 (57°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 4% of September 11th dates historically, with the wettest September 11th recording 3.45" of rain. The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.5°F warmer on this date compared to 20-30 years ago.
Planning for September 11th in Channel Islands? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 75°F | 50°F | 0" | -- |
| 2024 | 96°F | 45°F | 0" | -- |
| 2023 | 97°F | 63°F | 0" | -- |
| 2022 | 83°F | 68°F | 0" | -- |
| 2021 | 98°F | 57°F | 0" | -- |
| 2020 | 85°F | 45°F | 0" | -- |
| 2019 | 79°F | 49°F | 0" | -- |
| 2018 | 89°F | 54°F | 0" | -- |
| 2017 | 99°F | 66°F | 0" | -- |
| 2016 | 93°F | 49°F | 0" | -- |
| 2015 | 98°F | 65°F | 0" | -- |
| 2014 | 98°F | 56°F | 0" | -- |
| 2013 | 83°F | 54°F | 0" | -- |
| 2012 | 81°F | 64°F | -- | -- |
| 2011 | 73°F | 55°F | -- | -- |
| 2010 | 82°F | 48°F | -- | -- |
| 2009 | 91°F | 63°F | -- | -- |
| 2008 | 77°F | 54°F | -- | -- |
| 2007 | 90°F | 54°F | -- | -- |
| 2006 | 90°F | 52°F | -- | -- |
| 2005 | 68°F | 52°F | -- | -- |
| 2004 | 93°F | 61°F | -- | -- |
| 2003 | 88°F | 55°F | -- | -- |
| 2002 | 86°F | 54°F | -- | -- |
| 2001 | 77°F | 57°F | -- | -- |
| 2000 | 93°F | 48°F | -- | -- |
| 1999 | 79°F | 44°F | 0" | 0" |
| 1998 | 81°F | 52°F | 0" | 0" |
| 1997 | 85°F | 57°F | 0" | 0" |
| 1996 | 91°F | 48°F | 0" | 0" |
| 1995 | 86°F | 51°F | 0" | 0" |
| 1994 | 80°F | 51°F | 0" | 0" |
| 1993 | 78°F | 54°F | 0" | 0" |
| 1992 | 89°F | 50°F | 0" | 0" |
| 1991 | 78°F | 47°F | 0" | 0" |
| 1990 | 98°F | 54°F | 0" | 0" |
| 1989 | 80°F | 50°F | 0" | 0" |
| 1988 | -- | 48°F | 0" | 0" |
| 1987 | 75°F | 51°F | 0" | 0" |
| 1986 | 78°F | 56°F | 0" | 0" |
| 1985 | 74°F | 40°F | 0" | 0" |
| 1984 | 81°F | 70°F | 0.1" | 0" |
| 1983 | 104°F | 59°F | 0" | 0" |
| 1982 | 83°F | 63°F | 0" | 0" |
| 1981 | 88°F | 53°F | 0" | 0" |
| 1980 | 83°F | 55°F | 0" | 0" |
| 1979 | 102°F | 53°F | 0" | 0" |
| 1978 | 76°F | 52°F | 0" | 0" |
| 1977 | 83°F | 49°F | 0" | 0" |
| 1976 | 71°F | 60°F | 3.45" | 0" |
| 1975 | 74°F | 52°F | 0" | 0" |
| 1974 | 83°F | 56°F | 0" | 0" |
| 1973 | 80°F | 60°F | 0" | 0" |
| 1972 | 76°F | 59°F | 0" | 0" |
| 1971 | 105°F | 62°F | 0" | 0" |