Best boat ramps near Penngrove
13 boat ramps · 13 ranked · updated 2026-08-03 · off-season
Explore the best boat ramps near Penngrove, California — every spot ranked by our conditions-aware Snoflo score: live conditions first, then visitor reviews and logged trips. Click a pin on the map for the score and what's driving it.
Showing the top 13 of 13 boat ramps · best 15 shown on the map
P⛰
#1
Petaluma Marina
Prime
6.4 mi away
· Streamflow nearby - Petaluma R A Copland Pumping Station A Petaluma Ca· Sunny · 75°F · 11 mph wind
Petaluma Marina is a public boat launch on Petaluma River in Sonoma County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys…
Why 53: live conditions (prime)
53Solid
H⛰
#2
Hudeman Slough Fishing Access
16.7 mi away
Hudeman Slough Fishing Access is a public boat launch on Napa River in Sonoma County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and…
Why 55: public ramp & water access
55Solid
M⛰
#3
Miller Park
17.1 mi away
Miller Park is a public boat launch on Tomales Bay in Marin County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys, alongside a…
Why 55: public ramp & water access
55Solid
N⛰
#4
Napa Valley Marina
19.2 mi away
Napa Valley Marina is a public boat launch on Napa River in Napa County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys…
Why 55: public ramp & water access
55Solid
G⛰
#5
Gilardi's Lakeview Marina
10.1 mi away
Gilardi's Lakeview Marina is a semi-private boat launch on Petaluma River in Sonoma County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge…
Why 50: public ramp & water access
50Solid
T⛰
#6
Tomales Bay Resort
18.9 mi away
Tomales Bay Resort is a semi-private boat launch on Tomales Bay in Marin County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys…
Why 50: public ramp & water access
50Solid
L⛰
#7
Lake Hennessey
Good
19.3 mi away
· Low reservoir pool (-6% of normal) - ramps may be exposed· Partly Cloudy · 60°F
Lake Hennessey is a public boat launch on Lake Hennessey in Napa County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys…
Why 50: live conditions (good)
50Solid
S⛰
#8
Spring Lake
Fair
9.1 mi away
· Streamflow nearby - Matanzas C A Santa Rosa Ca· Windy - 22 mph· Sunny · 87°F
Spring Lake is a public boat launch on Spring Lake in Sonoma County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys, alongside a…
Why 45: live conditions (fair)
45Rated
H⛰
#9
Howarth Park
Fair
9.3 mi away
· Streamflow nearby - Matanzas C A Santa Rosa Ca· Windy - 22 mph· Sunny · 87°F
Howarth Park is a public boat launch on Lake Ralphine in Sonoma County, California. Snoflo tracks live launch conditions here from the nearest streamflow gauge and buoys…
Why 45: live conditions (fair)
45Rated
S⛰
#10
Sears Point Road 100-138, Novato
16.2 mi away
The Sears Point Road boat ramp, located in Novato, California, is a concrete boat ramp that provides access to the Petaluma River. According to the latest information available…
Why 40: public ramp & water access
40Rated
C⛰
#11
Calypso Shores 23, Marin County
18.0 mi away
Calypso Shores 23 in Marin County, California, offers a hand-carry only launch on a natural shoreline—not suitable for trailer launches. There is no developed ramp (concrete or…
Why 40: public ramp & water access
40Rated
Boat Ramps near Penngrove
The Penngrove area has 13 boat ramps on Snoflo, ranked by live conditions, visitor reviews, and logged trips — so the best, closest options rise to the top.
How we rank the best boat ramps near Penngrove
How are these boat ramps ranked?
Each gets a daily Snoflo score blending live conditions, visitor review ratings, and logged trips. The order reflects what's best right now and re-ranks every day.
How often does it update?
Daily, as new conditions, reviews, and trips arrive — so "best right now" means right now.
What do the numbers on the map mean?
Each pin shows that spot's current Snoflo score; tap it for the breakdown and a link to the full report.