Weather on May 18 at Channel Islands
Channel Islands National Park
CAPacific West
Avg High76°F
Avg Low48°F
Warmest200878°F
Coldest197454°F
Based on 54 years of data from Ventura, CA
Planning Your Visit
May 18th in Channel Islands National Park (via Ventura, CA) typically brings pleasant spring weather, with average highs around 76°F and lows near 48°F — a 28°F daily swing. Over 54 years of records, the warmest May 18th was in 2008 (78°F average), while the coldest was 1974 (54°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 18th dates historically. The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.2°F cooler on this date compared to 20-30 years ago.
Planning for May 18th in Channel Islands? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 43°F | 0" | -- |
| 2024 | 63°F | 54°F | 0" | -- |
| 2023 | 84°F | 50°F | 0" | -- |
| 2022 | 74°F | 45°F | 0" | -- |
| 2021 | 66°F | 42°F | 0" | -- |
| 2020 | 78°F | 58°F | 0.33" | -- |
| 2019 | 71°F | 48°F | 0" | -- |
| 2018 | 73°F | 42°F | 0" | -- |
| 2017 | 75°F | 43°F | 0" | -- |
| 2016 | 77°F | 45°F | 0" | -- |
| 2015 | 71°F | 44°F | 0" | -- |
| 2014 | 81°F | 48°F | 0" | -- |
| 2013 | 81°F | 46°F | 0" | -- |
| 2012 | 73°F | 50°F | -- | -- |
| 2011 | 66°F | 48°F | -- | -- |
| 2010 | 63°F | 52°F | -- | -- |
| 2009 | 81°F | 54°F | -- | -- |
| 2008 | 93°F | 63°F | -- | -- |
| 2007 | 72°F | 48°F | -- | -- |
| 2006 | 73°F | 55°F | -- | -- |
| 2005 | 73°F | 50°F | -- | -- |
| 2004 | 72°F | 48°F | -- | -- |
| 2003 | 72°F | 48°F | -- | -- |
| 2002 | 68°F | 50°F | -- | -- |
| 2001 | 66°F | 54°F | -- | -- |
| 2000 | 88°F | 45°F | 0" | 0" |
| 1999 | 82°F | 47°F | 0" | 0" |
| 1998 | 78°F | 42°F | 0" | 0" |
| 1997 | 70°F | 63°F | 0" | 0" |
| 1996 | 79°F | 56°F | 0" | 0" |
| 1995 | 74°F | 41°F | 0" | 0" |
| 1994 | 60°F | 48°F | 0.25" | 0" |
| 1993 | 79°F | 53°F | 0" | 0" |
| 1992 | 83°F | 52°F | 0" | 0" |
| 1991 | 76°F | 42°F | 0" | 0" |
| 1990 | 72°F | 44°F | 0" | 0" |
| 1989 | 73°F | 47°F | 0" | 0" |
| 1988 | 83°F | 47°F | 0" | 0" |
| 1987 | 73°F | 51°F | 0" | 0" |
| 1986 | 93°F | 50°F | 0" | 0" |
| 1985 | 74°F | 42°F | 0" | 0" |
| 1984 | 84°F | 43°F | 0" | 0" |
| 1983 | 87°F | 50°F | 0" | 0" |
| 1981 | 81°F | 43°F | 0" | 0" |
| 1980 | 84°F | 50°F | 0" | 0" |
| 1979 | 74°F | 45°F | 0" | 0" |
| 1978 | 94°F | 49°F | 0" | 0" |
| 1977 | 71°F | 41°F | 0" | 0" |
| 1976 | 87°F | 44°F | 0" | 0" |
| 1975 | 75°F | 49°F | 0" | 0" |
| 1974 | 73°F | 36°F | 0" | 0" |
| 1973 | 75°F | 55°F | 0" | 0" |
| 1972 | 61°F | 49°F | 0" | 0" |
| 1971 | 85°F | 41°F | 0" | 0" |
May 18 at Nearby Parks
Holiday Weather at Channel Islands
Official NPS WebsiteVisit nps.gov/chis for park information, alerts, and reservations
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