Weather on August 31 at Channel Islands
Channel Islands National Park
CAPacific West
Avg High89°F
Avg Low56°F
Warmest201790°F
Coldest197562°F
Based on 55 years of data from Ventura, CA
Planning Your Visit
August 31st in Channel Islands National Park (via Ventura, CA) typically brings warm summer weather, with average highs around 89°F and lows near 56°F — a 33°F daily swing. Over 55 years of records, the warmest August 31st was in 2017 (90°F average), while the coldest was 1975 (62°F) — a 28°F range across recorded history. This date has historically been dry, with little recorded precipitation. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for August 31st in Channel Islands? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 97°F | 57°F | 0" | -- |
| 2024 | 87°F | 51°F | 0" | -- |
| 2023 | 98°F | 51°F | 0" | -- |
| 2022 | 100°F | 51°F | 0" | -- |
| 2021 | 89°F | 58°F | 0" | -- |
| 2020 | 85°F | 51°F | 0" | -- |
| 2019 | 94°F | 55°F | 0" | -- |
| 2018 | 92°F | 51°F | 0" | -- |
| 2017 | 110°F | 70°F | 0" | -- |
| 2016 | 102°F | 56°F | 0" | -- |
| 2015 | 95°F | 55°F | 0" | -- |
| 2014 | 93°F | 57°F | 0" | -- |
| 2013 | 95°F | 69°F | 0" | -- |
| 2012 | 86°F | 59°F | -- | -- |
| 2011 | 77°F | 52°F | -- | -- |
| 2010 | 82°F | 50°F | -- | -- |
| 2009 | 100°F | 61°F | -- | -- |
| 2008 | 81°F | 63°F | -- | -- |
| 2007 | 100°F | 68°F | -- | -- |
| 2006 | 91°F | 55°F | -- | -- |
| 2005 | 79°F | 55°F | -- | -- |
| 2004 | 95°F | 54°F | -- | -- |
| 2003 | 88°F | 57°F | -- | -- |
| 2002 | 93°F | 50°F | -- | -- |
| 2001 | 79°F | 54°F | -- | -- |
| 2000 | 70°F | 57°F | -- | -- |
| 1999 | 88°F | 52°F | 0" | 0" |
| 1998 | 104°F | 67°F | 0" | 0" |
| 1997 | 89°F | 57°F | 0" | 0" |
| 1996 | 95°F | 60°F | 0" | 0" |
| 1995 | 101°F | 56°F | 0" | 0" |
| 1994 | 81°F | 54°F | 0" | 0" |
| 1993 | 80°F | 57°F | 0" | 0" |
| 1992 | 78°F | 50°F | 0" | 0" |
| 1991 | 92°F | 52°F | 0" | 0" |
| 1990 | 86°F | 54°F | 0" | 0" |
| 1989 | 84°F | 46°F | 0" | 0" |
| 1988 | 91°F | 57°F | 0" | 0" |
| 1987 | 95°F | 53°F | 0" | 0" |
| 1986 | 77°F | 51°F | 0" | 0" |
| 1985 | 100°F | 58°F | 0" | 0" |
| 1984 | 91°F | 66°F | 0" | 0" |
| 1983 | 92°F | 55°F | 0" | 0" |
| 1982 | 84°F | 55°F | 0" | 0" |
| 1981 | 88°F | 50°F | 0" | 0" |
| 1980 | 81°F | 50°F | 0" | 0" |
| 1979 | 81°F | 52°F | 0" | 0" |
| 1978 | 93°F | 55°F | 0" | 0" |
| 1977 | 83°F | 64°F | 0" | 0" |
| 1976 | 100°F | 59°F | 0" | 0" |
| 1975 | 77°F | 47°F | 0" | 0" |
| 1974 | 95°F | 49°F | 0" | 0" |
| 1973 | 79°F | 56°F | 0" | 0" |
| 1972 | 91°F | 65°F | 0" | 0" |
| 1971 | 84°F | 55°F | 0" | 0" |
August 31 at Nearby Parks
Holiday Weather at Channel Islands
Official NPS WebsiteVisit nps.gov/chis for park information, alerts, and reservations
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