George J. Hatfield State Recreation Area - United States

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About George J. Hatfield State Recreation Area

RV quick facts for George J. Hatfield State Recreation Area

DetailInformation
Max RV length30 feet
Full hookupsNone
Dump stationNot available
Cell serviceLimited, variable by carrier
Reservation windowFamily sites first-come, first-served; group camp year-round by reservation
Road restrictionsAccess via County Road J-18 from I-5 Newman exit; no mountain passes

RV Rentals George J. Hatfield State Recreation Area

George J. Hatfield State Recreation Area, CA, United States

How to get to George J. Hatfield State Recreation Area

From Modesto, George J. Hatfield State Recreation Area is approximately 20 miles south, a 30-minute drive. Fresno Yosemite International Airport is about 83 miles away (1.5 hours), making it a practical fly-and-rent option. Access the park via the Newman exit from Interstate 5, then head east on County Road J-18 for 5 miles. The park is located at 4394 Kelley Road, Hilmar, California. No significant mountain passes or tunnels block access, making the route straightforward for RVs up to 30 feet.

Best time to visit George J. Hatfield State Recreation Area

Spring (March to May) and fall (September to October) offer the most pleasant weather for RV travel, with mild temperatures and lower crowds. Summer heat in the San Joaquin Valley can exceed 90 degrees, though it attracts visitors for water activities. Winter months are cool and wet, with January and February receiving the most precipitation, but temperatures remain mild for California and the park stays accessible.

Jan 68 mm
56°F - 40°F

Coolest month with higher precipitation; roads clear

Feb 57 mm
62°F - 42°F

Still winter conditions; wet weather common

Mar 43 mm
68°F - 46°F

Spring begins; conditions improving for camping

Apr 26 mm
74°F - 49°F

Pleasant spring weather; good time for RV travel

May 17 mm
82°F - 55°F

Warm and dry; ideal for water activities on Merced River

Jun 4 mm
90°F - 60°F

Early summer heat; very dry and excellent for outdoor recreation

Jul 0 mm
95°F - 63°F

Peak heat in San Joaquin Valley; swimming and water recreation popular

Aug 0 mm
94°F - 63°F

Continuing summer heat; river provides cooling relief

Sep 2 mm
89°F - 59°F

Late summer with decreasing heat; comfortable camping conditions

Oct 16 mm
79°F - 52°F

Fall season with mild temperatures; excellent for RV travel

Nov 28 mm
66°F - 44°F

Transition to winter; precipitation increasing

Dec 60 mm
56°F - 39°F

Winter month with significant rainfall; cool temperatures

Things to do at George J. Hatfield State Recreation Area

  • Merced River Fishing Easy
    RV parking available

    The Merced River at George J. Hatfield offers year-round fishing opportunities. Rainbow trout and bass are abundant in spring, while catfish and perch can be caught year-round. The park provides direct river access from campsites and picnic areas.

  • Kayaking and Paddling Easy
    RV parking available

    Paddlers can launch kayaks and canoes from the park to explore the Merced River. The calm sections near the park are suitable for recreational paddling, and the scenic riparian landscape offers peaceful water-based recreation.

  • River Swimming and Wading Easy
    RV parking available

    Designated swimming areas along the Merced River provide opportunities to cool off and enjoy water recreation. The river is generally shallow and calm in the park area, making it accessible for swimmers of various abilities.

  • Riverside Walking Trails Easy
    RV parking available

    Flat, accessible trails wind through the park along the Merced River and through native oak and cottonwood groves. The trails are suitable for all fitness levels and offer views of the riparian environment and river valley.

  • Bird Watching and Nature Study Easy
    RV parking available

    The park's riparian habitat attracts diverse bird species including valley quail, woodpeckers, magpies, robins, pheasants, and hawks. The native vegetation provides excellent opportunities for observing wildlife and identifying bird species.

  • Picnicking Easy
    RV parking available

    Picnic areas throughout the park feature tables and fire rings, making it ideal for daytime visits. The shaded setting under towering cottonwoods and sycamores offers relief from the summer heat.

  • Historic Bridge Photography Easy
    RV parking available

    The historic 1910 bridge in the park is a notable landmark and popular spot for photography. The scenic river setting makes it an attractive subject for visitors capturing memories of their visit.

Top Hosts near CA, United States

MJ
Michael40 trips - Joined Nov 2023Superhost

The RV is very nice, neat and spacious. It has everything you need for camping. Michael is very friendly and communicable. He helps me with everything i needed.

Sarah T. - Jul 2025

We rented from Mike before and will do it again! Thank you.

Obediah G. - Jul 2025

Jeremy28 trips - Joined Dec 2021

Sarah was very helpful and supportive. I was nervous and she took the time to go over everything. Perfect get away weekend!

Kimberly J. - Aug 2025

Had a great time with family and friends while renting this RV. Jeremy and Sarah are wonderful hosts and very responsive. I'd love to rent from them again,

Shyam D. - Jul 2025

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