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Photo by Jay Mantri on Unsplash
EasyGround

Mount Umunhum Trail

New Almaden, California · Santa Clara County

Mount Umunhum Trail is a easy hiking trail near New Almaden in Santa Clara County, California.. The surface is ground. Trail data is sourced from OpenStreetMap.

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37.15835, -121.87866
Open in OpenStreetMap
5-Day Forecast

Weather at Mount Umunhum Trail

Live forecast for the trailhead. Use it to pack and time your hike.

Avg High82°F
Avg Low52°F
Peak Rain Chance0%
Humidity53%
UV (avg)8
Air Quality35 · Good
Today
🌤
Mostly Clear
78°/55°
🌬 9mph
6:05 AM8:22 PM
Fri
🌤
Mostly Clear
76°/57°
🌬 9mph
6:06 AM8:21 PM
Sat
☁️
Overcast
82°/53°
🌬 11mph
6:07 AM8:20 PM
Sun
☀️
Clear
84°/48°
🌬 11mph
6:07 AM8:20 PM
Mon
☀️
Clear
88°/48°
🌬 11mph
6:08 AM8:19 PM

Forecast data © Open-Meteo. Refreshed every 6 hours. Always check the most recent forecast before heading out.

About Mount Umunhum Trail

Mount Umunhum Trail is a easy hiking trail near New Almaden in Santa Clara County, California.. The surface is ground. Trail data is sourced from OpenStreetMap.

What “Easy” Means

Gentle terrain, well-marked. Suitable for all ages and fitness levels.

Difficulty is derived from OpenStreetMap’s Swiss Alpine Club (SAC) hiking scale, trail visibility, surface, distance, and elevation gain. Always verify current conditions before heading out.

What to Pack & Wear

Personalised to this trail’s length, elevation, difficulty, and the live forecast.

👔 What to Wear

  • 👕
    Moisture-wicking T-shirt
    Light color, breathable.
  • 🩳
    Lightweight shorts or pants
    Quick-dry preferred — sweat dries fast.
  • 🧢
    Brimmed sun hat
    Better than a cap for back-of-neck protection.
  • 🥾
    Trail runners
    Breathable mesh uppers.

🎒 What to Pack

  • 💧
    Water
    Bring at least 1L of water; more in heat.
  • 🍫
    High-energy snacks
    A snack for the trail.
  • 🧴
    Sun protection (UV 8)
    SPF 50+ sunscreen, lip balm w/ SPF, sunglasses, sun hat.
  • 🩹
    First-aid kit
    Blister patches, ibuprofen, tape, antiseptic wipes.
  • 🗺
    Offline map
    Download your route in advance via Gaia, Caltopo, or OSM-based apps.

Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.

Trail Safety in California

Trail conditions in California change with weather, season, and fire activity. Closures, washouts, and rerouting are common. Before heading out:

  • Check with the land manager for current conditions and closures
  • Tell someone your plan and expected return time
  • Know your turn-around limits — conditions can change fast
  • Carry the 10 essentials: water, food, navigation, first aid, light, fire, shelter, knife, sun protection, extra clothes

Frequently Asked Questions

How hard is Mount Umunhum Trail?

Mount Umunhum Trail is rated Easy. Suitable for most hikers including families.

Are dogs allowed on Mount Umunhum Trail?

No — dogs are not permitted on this trail per OpenStreetMap data.

Can I ride a bike on Mount Umunhum Trail?

Yes — bicycles are allowed on this trail.

Are horses allowed on Mount Umunhum Trail?

Yes — horseback riding is permitted.

What is the trail surface on Mount Umunhum Trail?

The surface is ground. Natural surface — sturdy footwear recommended; can be muddy after rain.

When is the best time to hike Mount Umunhum Trail?

California has trail conditions that vary by season. Spring and fall usually offer the best mix of temperature and trail conditions. Check the 5-day forecast above for current outlook. Always verify trail status (closures, washouts, fire restrictions) with the local land manager before going.