campgrounds.fyiIndependent · federal campgrounds · no paid placements
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USFSOlympic National Forest · Washington

Hamma Hamma Campground

Campground is located along the shore of the Hamma Hamma River.
Sites0all reservable
Elev.607ft
Comf.Jan-Dec11 months
Max rigtents
Electricnonesites
From Seattle2h43real road time
The honest read
Synthesized from
RIDB · Open-Meteo
OSM · OSRM
Updated 2026-05-27

At 607 ft, Hamma Hamma Campground has a 11-month comfortable window (Jan-Dec). Winter nights average around 36°F, so the shoulder seasons turn cold fast. Within about 4 miles: 4 named hiking routes, 2 peaks, lake or river access.

The campground at a glance

01 · CHARACTER
QuietCoolRoomyShadeRV-fitReserv.

Reads strongest on quiet and cool nights. Softest on cool nights.

Six axes, each scored relative to every other federal campground in the region: quiet (miles to a major road), cool (elevation), roomy (average site spacing), shade, RV-fit (longest rig), and how reservable it is. All six come from data, nothing hand-tuned.

When to go

02 · CLIMATE
JFMAMJJASOND
avg highavg lowfrost-freedriest · Jul
Jan-Dec
Comfortable window: nights stay above 35°F, days below 90°F.
82%
Of summer weekend-days are dry.
Apr 2
Last spring frost; first fall frost Nov 6.
56°F
Average July low.

Getting there

03 · ACCESS
01
Seattle
116 mi
2h43
02
Yakima
228 mi
4h56
03
Spokane
375 mi
7h28
By drive time
Seattle · 2h43Yakima · 4h56Spokane · 7h28Camp

Routed road time (OSRM). Nearest major highway 4.8 mi away.

What's within four miles

05 · TRAILS · PEAKS · WATER

Trails & Peaks

Named hiking routes
4
Trail segments
17
Peaks
2

Water & Access

Lake / river access
yes
To nearest major road
4.8 mi
Method

We synthesize public data layers: RIDB and Recreation.gov facility and site records, Open-Meteo climate normals, OpenStreetMap roads, trails, and water, OSRM drive times, and USGS elevation. We take no bookings, no ads, and no paid placements. Independence is the entire point.

Check availability on Recreation.gov →