Park

Acalanes Open Space park

California, USA San Francisco Bay watershed 37.899°, -122.073°
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Nearby campgrounds
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Acalanes Open Space -- California park
Acalanes Open Space California · San Francisco Bay watershed
About this park

Acalanes Open Space

Acalanes Open Space is located in the state of California and offers visitors a variety of outdoor activities and beautiful scenery. The area is known for its hiking trails, which provide stunning views of the surrounding hills and valleys.

One great reason to visit Acalanes Open Space is to enjoy the natural beauty of the area. Visitors can hike, bike, or horseback ride along the many trails that wind through the park. There are also several picnic areas where visitors can relax and enjoy a meal while taking in the stunning surroundings.

One point of interest in the area is the Lafayette Reservoir, which is a popular spot for fishing, boating, and picnicking. The area is also home to several historic sites, including the former home of the famous author Jack London.

Interesting facts about the area include its rich history, which dates back to the times of Native American settlements. The area was also once used by Spanish explorers as a route to the California coast.

The best time of year to visit Acalanes Open Space is during the spring and fall months when the weather is mild and the scenery is at its most beautiful. However, visitors can also enjoy the park year-round, with summer providing an excellent opportunity for outdoor activities like swimming and boating.

Overall, Acalanes Open Space is a fantastic destination for those looking to experience the natural beauty of California. With its many trails, historic sites, and stunning scenery, it is easy to see why this park is such a popular destination.
StateCalifornia
WatershedSan Francisco Bay
Latitude37.8988°
Longitude-122.0730°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing, often around reservoirs, rivers, or scenic landscapes); may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use -- recreation, grazing, mining, conservation -- with fewer restrictions than national parks or forests.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Acalanes Open Space, with reservations status.

Campground Reservations Toilets View
Homestead Valley
Maud Whalen
Wee-Ta-Chi
Corral Camp
Girls Camp
Boundary Group Camp
Around the spot

Plan a longer trip

The closest parks, lakes, fishing spots, and POIs so a park visit can grow into a full weekend.

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Acalanes Open Space as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Acalanes Open Space

What can I do at Acalanes Open Space?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Acalanes Open Space?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Acalanes Open Space.

Premium feature

Favorites and custom alerts are part of Snoflo Premium. Save parks, set thresholds, and get push notifications when conditions change.

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Manage alerts in the Snoflo app

Custom push alerts are configured in the iOS app -- favorite this park, set a threshold (temperature, precipitation, fire restrictions), and you'll get a push the moment it crosses.

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