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Lagoon Valley / Pena Adobe

Mountain bike trail conditions · Bay Area, CA 38.332° N  121.998° W   453 FT Verified

DRY: Rideable

Thursday, October 22nd at 3pm Conditions turn Caution.

Recent rain
No measurable rain in the past week
Today
59°Frain
  • Mon 10/12, no measurable rain, daily high 72 degrees Fahrenheit, modeled conditions: DUSTY
  • Tue 10/13, no measurable rain, daily high 76 degrees Fahrenheit, modeled conditions: DUSTY
  • Wed 10/14, no measurable rain, daily high 82 degrees Fahrenheit, modeled conditions: DUSTY
  • Thu 10/15, no measurable rain, daily high 90 degrees Fahrenheit, modeled conditions: DUSTY
  • Fri 10/16, no measurable rain, daily high 88 degrees Fahrenheit, modeled conditions: DUSTY
  • Sat 10/17, no measurable rain, daily high 89 degrees Fahrenheit, modeled conditions: DUSTY
  • Sun 10/18, no measurable rain, daily high 82 degrees Fahrenheit, modeled conditions: DUSTY
  • Mon 10/19, no measurable rain, daily high 68 degrees Fahrenheit, modeled conditions: DUSTY
  • Tue 10/20, no measurable rain, daily high 70 degrees Fahrenheit, modeled conditions: DUSTY
  • Wed 10/21, no measurable rain, daily high 70 degrees Fahrenheit, modeled conditions: DUSTY then DRY
  • Today, Thu 10/22, 0.32 inches of rain, daily high 59 degrees Fahrenheit, modeled conditions: DRY then CAUTION then STAY OFF
  • Fri 10/23, no measurable rain, daily high 65 degrees Fahrenheit, modeled conditions: STAY OFF then CAUTION then DRY
  • Sat 10/24, no measurable rain, daily high 75 degrees Fahrenheit, modeled conditions: DRY
  • Sun 10/25, no measurable rain, daily high 75 degrees Fahrenheit, modeled conditions: DRY
  • Mon 10/26, no measurable rain, daily high 75 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
  • Tue 10/27, no measurable rain, daily high 74 degrees Fahrenheit, modeled conditions: DRY, forecast preview, beyond the free window
Updated

Updated Thursday, October 22nd, 2026 at 20:31 UTC. Verdict last changed: Thursday, October 22nd. Official closures and current trail conditions take priority.

Modeled hourly. Closures and local conditions take priority.

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Is Lagoon Valley / Pena Adobe rideable today?

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

CHANGED
Wednesday, October 21st at 10pm
Rain moved in. Verdict dropped to DRY.
Over the tracked history, Lagoon Valley / Pena Adobe has been rideable on 10 of the last 10 days (very dry and dusty on 9 of them). Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Lagoon Valley / Pena Adobe

Lagoon Valley / Pena Adobe is a mountain bike trail network in Bay Area, CA. Soil data at the sampled location is classified as clay. Open tree cover can allow more sun and wind exposure, helping drying. Terrain data indicates an elevation of about 453 ft, an average terrain slope of 6° and a predominant NNE-facing aspect. Terrain slope does not measure the trail tread or its drainage features. 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 we check ourselves

How these factors affect drying

SoilClay

Clay can retain moisture and become slick when wet. Wait for a firm trail surface and respect posted closures. The model uses surveyed water-retention values, not measured trail recovery times.

CanopyOpen 16%

Open tree cover can allow more sunlight and wind to reach the ground. Terrain, weather and trail construction also affect drying.

TerrainModerate

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

FAQ

Can you ride Lagoon Valley / Pena Adobe right now?

The current estimate for Lagoon Valley / Pena Adobe is DRY: rideable. Rideable now. No significant rain in the forecast. No measurable rain in the past week.

Is Lagoon Valley / Pena Adobe muddy right now?

Loam currently estimates dry conditions (DRY). Clay can retain moisture, but soil type alone does not establish drying time. No measurable rain in the past week.

What is the soil and trail surface like at Lagoon Valley / Pena Adobe?

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

How long does Lagoon Valley / Pena Adobe take to dry after rain?

Lagoon Valley / Pena Adobe 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 Lagoon Valley / Pena Adobe after rain?

Clay soil needs time to dry. Riding it wet can leave lasting ruts. 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 Lagoon Valley / Pena Adobe?

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's the terrain and elevation like at Lagoon Valley / Pena Adobe?

Terrain data indicates an elevation of about 453 ft, an average terrain slope of 6° 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
Claydrainage input
Terrain
Moderateterrain slope
Tree cover
16%Open
Elevation
453 ft
Average grade
6°
Predominant aspect
NNE-facing

Around Lagoon Valley / Pena Adobe

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