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Joaquin Miller

Mountain bike trail conditions · Bay Area, CA 37.814° N  122.197° W   709 FT

PRIME: Rideable now

No significant rain in the forecast.

Recent rain
No measurable rain in the past week
Today
82°Ffog or low cloud
Last 10 daysoldest to newest

Updated Aug 1, 2026, 21:26 UTC. Modeled hourly. Official closures and current trail conditions take priority.

Trail outlook

7 days back · 4 ahead
FORECAST
2026-07-25: 0.00 inches of rain
2026-07-26: 0.00 inches of rain
2026-07-27: 0.00 inches of rain
2026-07-28: 0.00 inches of rain
2026-07-29: 0.00 inches of rain
2026-07-30: 0.00 inches of rain
2026-07-31: 0.00 inches of rain
82°
PRIME
2026-08-01: 0.00 inches of rain, Fog or low cloud, representative trail outlook PRIME
87°
PRIME
2026-08-02: 0.00 inches of forecast rain, Clear, representative trail outlook PRIME
86°
PRIME
2026-08-03: 0.00 inches of forecast rain, Clear, representative trail outlook PRIME
82°
PRIME
2026-08-04: 0.00 inches of forecast rain, Clear, representative trail outlook PRIME
77°
PRIME
2026-08-05: 0.00 inches of forecast rain, Clear, representative trail outlook PRIME
7d6d5d4d3d2d1dTodaySUNMONTUEWED
Measured rain Forecast rain Above soft threshold (0.5″)

Over the tracked history, Joaquin Miller has been rideable on 10 of the last 10 days (very dry and dusty on 9 of them). Daily trail markers are representative daytime outlooks. Weather is one input. The rideability verdict also accounts for soil, terrain, canopy, and drying time.

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Why Joaquin Miller dries this way

Terrain & soil

Joaquin Miller is a mountain bike network in the Bay Area region of CA, riding on clay soil that holds water over terrain that drains at an even, moderate pace. What really sets the timing here is how quickly that ground gives back a firm, dry surface, not what the day’s forecast says. The SW-facing aspect gets its strongest sun in the afternoon, so morning laps can stay tacky after overnight moisture, and the rolling terrain, about a 5.1° average grade at 709 ft, drains steadily rather than pooling. Named trails in this network include Sinawik Loop, Castle Park Trail and Bridgeview Trail.

Network profile

Soil
Clayholds water
Drainage
Moderateeven drying
Tree cover
31%Partial
Elevation
709 ft
Average grade
5.1°
Predominant aspect
SW-facing
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.

CanopyPartial 31%

A mix of sun and shade. Conditions vary across the network, with open sections drying faster than covered ones.

TerrainModerate

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

Trails at Joaquin Miller

Named trails

Some of the named trails our map data covers here, not a complete list. Conditions above are modeled for the network as a whole, so these names do not carry separate verdicts. Trail names from public agency data and © OpenStreetMap contributors.

Nearby networks in Bay Area, CA

Bay Area, CA
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FAQ

Common questions
Can you ride Joaquin Miller right now?

As of the latest update, Joaquin Miller is Rideable now (PRIME). No significant rain in the forecast. No measurable rain in the past week.

What is the soil and trail surface like at Joaquin Miller?

Joaquin Miller 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 Joaquin Miller take to dry after rain?

Joaquin Miller can need several days to dry after meaningful rain. Its terrain drains at a moderate pace.

Does Joaquin Miller get snow in winter?

Rarely. Joaquin Miller sits low and mild enough (around 709 ft) that snow seldom affects riding; conditions are driven by rain and drying. Loam still flags FROZEN on the rare freeze.

What trails are at Joaquin Miller?

Named trails at Joaquin Miller include Sunset Loop, Sinawik Loop, Castle Park Trail, Bridgeview Trail and Cinderella Trail. That is a sample of what our map data covers rather than a full inventory, and local trail counts change as networks are built out. Loam models conditions for Joaquin Miller as a whole, so the verdict on this page covers the network rather than scoring each trail separately.

What's the terrain and elevation like at Joaquin Miller?

Joaquin Miller sits at roughly 709 feet, faces mostly SW, and averages a 5.1° grade with about 31% tree cover. That makes it an afternoon-sun network where mornings run tackier, and the rolling grade means it drains at a steady clip. Loam models this exact ground against live weather rather than using one regional forecast.

When is the best time of year to ride Joaquin Miller?

There is no real off-season at Joaquin Miller: snow rarely interferes, so good days come down to rain and how fast the dirt dries. The live verdict above reflects today.