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Pearson-Arastradero Preserve

Mountain bike trail conditions · Bay Area, CA 37.375° N  122.182° W   486 FT Verified

DRY: Rideable

Wednesday, October 21st Conditions turn Caution.

Recent rain
No measurable rain in the past week
Today
89°Fclear
  • Wed 10/7, no measurable rain, daily high 93 degrees Fahrenheit, modeled conditions: DRY
  • Thu 10/8, no measurable rain, daily high 92 degrees Fahrenheit, modeled conditions: DRY
  • Fri 10/9, no measurable rain, daily high 78 degrees Fahrenheit, modeled conditions: DRY
  • Sat 10/10, no measurable rain, daily high 68 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/11, no measurable rain, daily high 68 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/12, no measurable rain, daily high 69 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/13, no measurable rain, daily high 74 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/14, no measurable rain, daily high 80 degrees Fahrenheit, modeled conditions: DRY
  • Thu 10/15, no measurable rain, daily high 85 degrees Fahrenheit, modeled conditions: DRY
  • Fri 10/16, no measurable rain, daily high 91 degrees Fahrenheit, modeled conditions: DRY
  • Today, Sat 10/17, no measurable rain, daily high 89 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/18, no measurable rain, daily high 80 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/19, no measurable rain, daily high 67 degrees Fahrenheit, modeled conditions: DRY
  • Tue 10/20, no measurable rain, daily high 66 degrees Fahrenheit, modeled conditions: DRY
  • Wed 10/21, 0.31 inches of rain, daily high 68 degrees Fahrenheit, modeled conditions: DRY then CAUTION then DRY, forecast preview, beyond the free window
  • Thu 10/22, no measurable rain, daily high 62 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
Updated

Updated Saturday, October 17th, 2026 at 18:45 UTC. Verdict last changed: Saturday, October 17th. Official closures and current trail conditions take priority.

Modeled hourly. Closures and local conditions take priority.

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Is Pearson-Arastradero Preserve rideable today?

Yes. The live verdict is DRY, rideable now. No measurable rain in the past week.

Over the tracked history, Pearson-Arastradero Preserve has been rideable on 10 of the last 10 days. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Pearson-Arastradero Preserve

Pearson-Arastradero Preserve is a mountain bike trail network in Bay Area, CA. Soil data at the sampled location is classified as sandy. Terrain data indicates an elevation of about 486 ft, an average terrain slope of 3.8° and a predominant NNE-facing aspect. Terrain slope does not measure the trail tread or its drainage features. Trails here include Meadowlark Trail, Redtail Loop Trail and Arastradero Creek Trail. Loam models conditions across the network; individual trails and constructed surfaces can differ from these environmental inputs. Official closures and conditions on the ground take priority.

How these factors affect drying

SoilSandy

Sandy soil generally allows water to drain readily. Rainfall, shade and trail construction also affect recovery. The model uses surveyed water-retention values, not measured trail recovery times.

CanopyPartial 44%

Partial tree cover suggests a mix of sun and shade. Local exposure and surface conditions can vary across the network.

TerrainModerate

Moderate terrain slope is one input to the drying model. Local drainage also depends on soil and trail construction.

FAQ

Can you ride Pearson-Arastradero Preserve right now?

The current estimate for Pearson-Arastradero Preserve is DRY: rideable. Rideable now. No significant rain in the forecast. No measurable rain in the past week.

Is Pearson-Arastradero Preserve muddy right now?

Loam currently estimates dry conditions (DRY). Sandy soil usually drains quickly. No measurable rain in the past week.

What is the soil and trail surface like at Pearson-Arastradero Preserve?

The soil data at the sampled location is classified as sandy. This describes an environmental input, not a survey of every trail surface.

How long does Pearson-Arastradero Preserve take to dry after rain?

Pearson-Arastradero Preserve has no fixed drying time. Rainfall, soil moisture, shade and the weather that follows all matter. Check the current estimate and wait until the trail surface is firm.

Can you ride Pearson-Arastradero Preserve after rain?

Sandy soil can help drainage, but heavier rain, shade and the trail surface also affect recovery. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

What does a frozen condition mean at Pearson-Arastradero Preserve?

FROZEN means Loam estimates snow cover or frozen ground. It does not establish that riding is allowed or that every trail is frozen. Check posted winter access rules and watch for soft ground as temperatures rise.

What trails are at Pearson-Arastradero Preserve?

Trails at Pearson-Arastradero Preserve include Meadowlark Trail, Redtail Loop Trail, Arastradero Creek Trail, Juan Bautista de Anza Trail and Bowl Loop Trail. This is a partial list. The condition estimate covers the whole network, so individual trails may differ.

What's the terrain and elevation like at Pearson-Arastradero Preserve?

Terrain data indicates an elevation of about 486 ft, an average terrain slope of 3.8° and a predominant NNE-facing aspect. Terrain slope does not measure the trail tread or its drainage features.

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Network profile

Network profile

Soil
Sandydrainage input
Terrain
Moderateterrain slope
Tree cover
44%Partial
Elevation
486 ft
Average grade
3.8°
Predominant aspect
NNE-facing

Named trails

  • Meadowlark Trail
  • Redtail Loop Trail
  • Arastradero Creek Trail
  • Juan Bautista de Anza Trail
  • Bowl Loop Trail

This is a partial trail list. The condition estimate covers the whole network. Trail names from public agency data and © OpenStreetMap contributors.

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