California State Parks · California
Mount San Jacinto State Park
California State Parks · California, United States
- Drinking water
- Yes
- Restrooms
- Yes
- Showers
- Yes
- Dump station
- No
- Pets
- Yes
- Elevation
- 5,456 ft
- Dark sky
- Bortle class 4
- Cell coverage
- T-Mobile good · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Idyllwild
- Address
- 25905 Highway 243
- Phone
- (951) 659-2607
About
Mount San Jacinto State Park is a California State Park campground offering tent camping, hike/bike campsites, remote/backcountry camping, hookup RV sites in Riverside County.
Fees
California State Parks (ReserveCalifornia.com) does not publish one statewide nightly rate schedule; its own Booking and Fees page states rates 'vary based on the accommodation type and the amenities available at that park' and are posted per-park at booking time. A non-refundable $8.25 reservation fee (also $8.25 to modify or cancel) applies per ReserveCalifornia transaction, on top of the site's nightly rate. Fees include entry for one vehicle and one legally towed vehicle/trailer; additional vehicles are charged per-night at the park. Yes: Dogs allowed only in the Idyllwild and Stone Creek Campground. Dogs not allowed in the wilderness or on the Palm Springs Tram, with exception of service animals.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 54° | 37° | 23° | 70° | 5 of 11 |
| February | 53° | 33° | 18° | 73° | 8 of 11 |
| March | 55° | 36° | 23° | 83° | 8 of 11 |
| April | 63° | 40° | 29° | 79° | 3 of 11 |
| May | 73° | 46° | 34° | 83° | 0 of 11 |
| June | 84° | 55° | 44° | 95° | 0 of 11 |
| July | 89° | 62° | 51° | 99° | 0 of 11 |
| August | 85° | 60° | 52° | 97° | 0 of 11 |
| September | 80° | 55° | 46° | 87° | 0 of 11 |
| October | 71° | 48° | 35° | 84° | 0 of 10 |
| November | 64° | 41° | 27° | 73° | 2 of 10 |
| December | 57° | 37° | 23° | 70° | 5 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Idyllwild Regional Park · City, County & Regional Parks · 1 mi
- McCall Memorial Regional Park · City, County & Regional Parks · 3 mi
- Fern Basin · USDA Forest Service · 3 mi · 23 sites
- Marion Mountain · USDA Forest Service · 3 mi · 27 sites
- Dark Canyon Campground · USDA Forest Service · 4 mi · 4 sites
All public campgrounds in California · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.