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Swan Creek Park

Mountain bike trail conditions · Seattle & Snoqualmie, WA 47.209° N  122.400° W   436 FT Verified

PRIME: Rideable now

Thu 8pm Conditions turn Caution.

Recent rain
No measurable rain in the past week
Today
67°Ffog or low cloud
  • Fri 9/11, no measurable rain, modeled conditions: PRIME
  • Sat 9/12, 0.41 inches of rain, modeled conditions: PRIME then STAY OFF
  • Sun 9/13, 0.20 inches of rain, modeled conditions: STAY OFF then CAUTION then PRIME
  • Mon 9/14, no measurable rain, modeled conditions: PRIME
  • Tue 9/15, no measurable rain, modeled conditions: PRIME
  • Wed 9/16, no measurable rain, modeled conditions: PRIME
  • Thu 9/17, no measurable rain, modeled conditions: PRIME
  • Fri 9/18, no measurable rain, modeled conditions: PRIME
  • Sat 9/19, no measurable rain, modeled conditions: PRIME
  • Sun 9/20, no measurable rain, modeled conditions: PRIME
  • Today, Mon 9/21, no measurable rain, modeled conditions: PRIME
  • Tue 9/22, no measurable rain, modeled conditions: PRIME
  • Wed 9/23, no measurable rain, modeled conditions: PRIME
  • Thu 9/24, 0.45 inches of rain, modeled conditions: PRIME then CAUTION
  • Fri 9/25, 0.34 inches of rain, modeled conditions: STAY OFF then CAUTION, forecast preview, beyond the free window
  • Sat 9/26, no measurable rain, modeled conditions: CAUTION, forecast preview, beyond the free window

Updated Sep 21, 2026, 14:49 UTC. Modeled hourly. Unchanged for 10+ days. Official closures and current trail conditions take priority.

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Is Swan Creek Park rideable today?

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

CHANGED
Sun 134pm
Dried back to PRIME.
Sun 1310am
Dried back to CAUTION.
Sun 135am
Rain moved in. Verdict dropped to STAY OFF.
Over the tracked history, Swan Creek Park has been rideable on 10 of the last 10 days. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Swan Creek Park

Swan Creek Park is a mountain bike trail network in Seattle & Snoqualmie, WA. The soil is gravelly sandy and drains fast. Heavy tree cover can slow drying after rain. The terrain averages a 1.3° slope at 436 ft and mainly faces NW. Its nearly flat slopes can hold water in flat stretches.

How these factors affect drying

SoilGravelly sandy

About 20% of this ground is rock fragments, so water runs through it faster than the soil type alone suggests. It dries quicker than plain sandy. The soil type here is classified, but the exact drying speed is modeled from that classification rather than measured directly at this spot.

CanopyDense 73%

Heavy tree cover shades the soil and blocks wind, so these trails dry slowly and can hold morning damp even after dry days.

TerrainHolds water

Water tends to pool and linger here rather than running off, so the surface can stay damp well after the weather clears.

FAQ

Can you ride Swan Creek Park right now?

The current estimate for Swan Creek Park is PRIME: rideable now. Rain returns in ~3 days. No measurable rain in the past week.

Is Swan Creek Park muddy right now?

Loam currently estimates dry conditions (PRIME). Sandy soil usually drains quickly. No measurable rain in the past week.

What is the soil and trail surface like at Swan Creek Park?

Swan Creek Park sits on gravelly sandy soil that drains fast. About 20% of this ground is rock fragments, so water runs through it faster than the soil type alone suggests. It dries quicker than plain sandy. The soil type here is classified, but the exact drying speed is modeled from that classification rather than measured directly at this spot.

How long does Swan Creek Park take to dry after rain?

Swan Creek Park usually needs only a few hours to recover after light rain. Its terrain holds water in low spots, which slows it. Heavy tree cover slows drying further.

Can you ride Swan Creek Park after rain?

Sandy soil drains quickly, though heavier rain can leave soft spots. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

Does Swan Creek Park get snow in winter?

Yes. At 436 ft, Swan Creek Park typically sees winter snow and freeze-thaw that can pause riding. Loam flags a FROZEN state when the ground is snow-covered or frozen, then clears it as things thaw and dry.

What's the terrain and elevation like at Swan Creek Park?

Swan Creek Park sits at roughly 436 feet, faces mostly NW, and averages a 1.3° grade with about 73% tree cover. It is exposed to afternoon sun, and the nearly flat terrain holds puddles in the flats.

When is the best time of year to ride Swan Creek Park?

Snow can limit riding at Swan Creek Park in winter, at around 436 feet. Spring snowmelt and fall freezes can also affect conditions. Check the current conditions before planning a ride.

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Network profile

Network profile

Soil
Gravelly sandydrains fast · modeled
Drainage
Holds waterdries slowly
Tree cover
73%Dense
Elevation
436 ft
Average grade
1.3°
Predominant aspect
NW-facing

Around Swan Creek Park