San Nicolas Island
Island Remote Channel Island used for naval training
Off California’s coast, San Nicolas Island is a Navy-managed Channel Island with restricted access; researchers and permitted visitors study seabird colonies, archaeology and rugged shoreline.
San Nicolas Island is one of the Channel Islands of California located off the southern California coast. It is owned and managed by the United States Navy and is not open for routine public visitation.
The island has a long human history including precontact occupation by the Nicoleño people and later use by ranchers and the US military. It is known in cultural history for the story of the “Lone Woman of San Nicolas,” the last known Nicoleño inhabitant taken to the mainland in the 19th century.
During the 20th century the Navy established facilities on the island and it has been used for military testing and training as well as scientific research into island ecology. Because of military ownership, access is regulated and limited.
San Nicolas Island lies about 60 to 100 kilometres off the coast of Southern California, southwest of the city of Santa Barbara and west of the Los Angeles/Channel Islands coastline.
- Restricted access: Owned and managed by the United States Navy; public access is restricted and visitation requires prior permission from the Department of the Navy.
How to Get to San Nicolas Island #
There is no regular public ferry. Access is by military transport or through occasional research and conservation groups with federal permits; visitors must secure permission from U.S. Navy authorities.
Tips for Visiting San Nicolas Island #
- Permits are generally required through U.S. Navy channels-independent landings are prohibited.
- If an occasional public tour is announced, book well in advance and be prepared for strict regulations and searches.
- Respect all no-landing notices-the island serves sensitive military functions and environmental protections.
Best Time to Visit San Nicolas Island #
Access is restricted year-round; any visits depend on specific Navy or conservation-authority permissions.
Weather & Climate near San Nicolas Island #
San Nicolas Island's climate is classified as Cold Semi-Arid - Cold Semi-Arid climate with mild summers (peaking in August) and cool winters (coldest in December). Temperatures range from 8°C to 25°C. Very dry conditions with minimal rainfall with a pronounced dry season.
January
January is cool with highs of 17°C and lows of 8°C. The wettest month with 50 mm of rain.
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February
February is cool with highs of 17°C and lows of 9°C. Moderate rainfall (41 mm).
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March
March is cool with highs of 18°C and lows of 9°C. Moderate rainfall (42 mm).
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April
April is cool with highs of 19°C and lows of 10°C. Light rainfall.
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May
May is cool with highs of 20°C and lows of 11°C. Almost no rain.
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June
June is cool with highs of 23°C and lows of 12°C. The driest month with just 1 mm.
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July
July is mild with highs of 24°C and lows of 13°C. The driest month with just 1 mm.
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August
August is the warmest month with highs of 25°C and lows of 14°C. The driest month with just 1 mm.
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September
September is the warmest month with highs of 25°C and lows of 14°C. Almost no rain.
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October
October is cool with highs of 23°C and lows of 12°C. Almost no rain.
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November
November is cool with highs of 20°C and lows of 10°C. Moderate rainfall (40 mm).
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December
December is the coolest month with highs of 17°C and lows of 8°C. Moderate rainfall (42 mm).
