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Lagoon Valley / Pena Adobe

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

DUSTY: Rideable, very dry

Expect dust and loose corners.

Recent rain
No measurable rain in the past week
Today
79°Fpartly cloudy

Updated Sep 5, 2026, 14:09 UTC. Modeled hourly. Verdict last changed: Sep 5. Official closures and current trail conditions take priority.

Last 10 daysoldest to newest

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Trail outlook

Is Lagoon Valley / Pena Adobe rideable today?

Yes. The live verdict is DUSTY: rideable, but very dry and loose over hardpack. No measurable rain in the past week.

FORECAST
DUSTY 7d 2026-08-29: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 6d 2026-08-30: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 5d 2026-08-31: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 4d 2026-09-01: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 3d 2026-09-02: 0.00 inches of rain, representative trail outlook DUSTY
DUSTY 2d 2026-09-03: 0.00 inches of rain, representative trail outlook DUSTY
PRIME 1d 2026-09-04: 0.00 inches of rain, representative trail outlook PRIME
79° DUSTY Today 2026-09-05: 0.00 inches of rain, Partly cloudy, representative trail outlook DUSTY
78° DUSTY SUN 2026-09-06: 0.00 inches of forecast rain, Clear, representative trail outlook DUSTY
89° DUSTY MON 2026-09-07: 0.00 inches of forecast rain, Clear, representative trail outlook DUSTY
94° DUSTY TUE 2026-09-08: 0.00 inches of forecast rain, Cloudy, representative trail outlook DUSTY
98° DUSTY WED 2026-09-09: 0.00 inches of forecast rain, Cloudy, representative trail outlook DUSTY
No measurable rain in the window. 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). Each daily marker shows the expected daytime condition. 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. The soil is clay and holds water. With little tree cover, the ground gets plenty of sun and wind. The terrain averages a 6° slope at 453 ft and mainly faces NNE. Its rolling slopes drain steadily.

How we check ourselves

How these factors affect drying

SoilClay

Dense clay holds moisture and stays slick the longest. It needs the most drying time before it’s worth riding.

CanopyOpen 16%

Little tree cover means full sun and wind, so these trails are among the fastest to rebound after rain.

TerrainModerate

Terrain here drains at a moderate pace. It neither sheds nor holds water strongly.

FAQ

Can you ride Lagoon Valley / Pena Adobe right now?

The current estimate for Lagoon Valley / Pena Adobe is DUSTY: rideable, very dry. Rideable, but very dry. Expect dust and loose corners. No measurable rain in the past week.

Is Lagoon Valley / Pena Adobe muddy right now?

Loam currently estimates dry conditions (DUSTY). Clay soil can stay wet for several days. No measurable rain in the past week.

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

Lagoon Valley / Pena Adobe sits on clay soil that holds water. Dense clay holds moisture and stays slick the longest. It needs the most drying time before it’s worth riding.

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

Lagoon Valley / Pena Adobe can need several days to dry after meaningful rain. Its terrain drains at a moderate pace.

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.

Does Lagoon Valley / Pena Adobe get snow in winter?

Rarely. Lagoon Valley / Pena Adobe sits low and mild enough (around 453 ft) that snow seldom affects riding; conditions are driven by rain and drying. Loam still flags FROZEN on the rare freeze.

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

Lagoon Valley / Pena Adobe sits at roughly 453 feet, faces mostly NNE, and averages a 6° grade with about 16% tree cover. It is slower to dry where it faces north, and the rolling terrain drains steadily.

When is the best time of year to ride Lagoon Valley / Pena Adobe?

Snow rarely affects Lagoon Valley / Pena Adobe. Check recent rain and allow time for the ground to dry. Its shady aspect means it needs longer after storms than sunnier networks nearby. The live verdict above reflects today.

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Network profile

Network profile

Soil
Clayholds water
Drainage
Moderateeven drying
Tree cover
16%Open
Elevation
453 ft
Average grade
6°
Predominant aspect
NNE-facing

Around Lagoon Valley / Pena Adobe

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