LoamTrail outlook
7 days back · 4 aheadOver the tracked history, Mount Diablo has been rideable on 10 of the last 10 days (very dry and dusty on 10 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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Want the next PRIME alert? Get Loam for iPhone.Why Mount Diablo dries this way
Terrain & soilMount Diablo sits in the Bay Area, CA area, on loam soil that drains well over terrain that sheds water and dries quickly. With little tree cover, sun and wind get to the dirt fast. Whether it’s worth riding comes down to how that ground sheds and holds water after rain. That’s exactly what Loam tracks, hour by hour. The ESE-facing aspect catches morning sun, so the surface firms up earlier in the day, and the rolling terrain, about a 9.7° average grade at 3,688 ft, drains steadily rather than pooling. Summit Trail, Prospector's Gap Road and Peak Trail are among the named trails our map data covers here.
Network profile
- Soil
- Loamdrains well
- Drainage
- Sheds waterdries quickly
- Tree cover
- 10%Open
- Elevation
- 3,688 ft
- Average grade
- 9.7°
- Predominant aspect
- ESE-facing
How these factors affect drying
SoilLoam
Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful rain.
CanopyOpen 10%
Little tree cover means full sun and wind, so these trails are among the fastest to rebound after rain.
TerrainSheds water
Water runs off this terrain rather than pooling, which helps the surface dry out after rain.
Trails at Mount Diablo
Named trails- Summit Trail
- Prospector's Gap Road
- Peak Trail
- Meridian Ridge Road
- Green Ranch Road
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, CAFAQ
Common questionsCan you ride Mount Diablo right now?
As of the latest update, Mount Diablo is Rideable, very dry (DUSTY). Rideable, but very dry. Expect dust and loose corners. No measurable rain in the past week.
What is the soil and trail surface like at Mount Diablo?
Mount Diablo sits on loam soil that drains well. Loam balances drainage with water retention, so it typically takes a day or two to dry after meaningful rain.
How long does Mount Diablo take to dry after rain?
Mount Diablo usually needs about a day or two to dry after meaningful rain. Its terrain sheds water, which speeds drying.
Does Mount Diablo get snow in winter?
Occasionally. Cold snaps can bring snow or a hard freeze to Mount Diablo (around 3,688 ft), but it rarely lasts. Loam flags a FROZEN state when it happens and clears it once the trail thaws.
What trails are at Mount Diablo?
Named trails at Mount Diablo include Summit Trail, Prospector's Gap Road, Peak Trail, Meridian Ridge Road and Green Ranch Road. 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 Mount Diablo 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 Mount Diablo?
Mount Diablo sits at roughly 3,688 feet, faces mostly ESE, and averages a 9.7° grade with about 10% tree cover. That makes it a morning-sun network that firms up early in the day, 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 Mount Diablo?
Mount Diablo rides most of the year. Winter cold snaps can pause it briefly, but the day-to-day question is rain and drying, not the season. Check the live verdict the morning you want to ride.