City, County & Regional Parks · California
William Heise County Park
City, County & Regional Parks · California, United States
- Sites
- 14
- Elevation
- 4,259 ft
- Dark sky
- Bortle class 2
- Nearest town
- Julian
- Phone
- 858-565-3600
Season dates aren't confirmed for this campground yet - opening and closing dates haven't been verified. Check the operator's page or call ahead before you plan a trip.
Site map
The imagery of the campground. Press and hold the map to drop your own pins and notes; the operator publishes no site points here. Your ratings, notes, pins and photos are kept with the campground on your Saved list, the same list the camping map and the drive page keep.
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About
San Diego County park amid 900 acres of mountain forest near Julian. 14 cabins (224 sq ft each), insulated with moderate climate control, lighting, table/chairs, and a food pantry; wood-framed beds (mattress/bedding not included). Each cabin has a deck, picnic table, and fire ring.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 58° | 41° | 29° | 74° | 2 of 11 |
| February | 57° | 38° | 21° | 77° | 4 of 11 |
| March | 58° | 40° | 30° | 88° | 1 of 11 |
| April | 66° | 44° | 33° | 83° | 0 of 11 |
| May | 74° | 48° | 39° | 88° | 0 of 11 |
| June | 85° | 55° | 46° | 98° | 0 of 11 |
| July | 91° | 64° | 51° | 99° | 0 of 11 |
| August | 89° | 63° | 54° | 99° | 0 of 11 |
| September | 84° | 60° | 48° | 94° | 0 of 11 |
| October | 75° | 52° | 41° | 90° | 0 of 10 |
| November | 68° | 46° | 34° | 79° | 0 of 10 |
| December | 60° | 40° | 27° | 74° | 2 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
- Cuyamaca Rancho State Park · California State Parks · 9 mi
- El Prado Group · USDA Forest Service · 13 mi · 5 sites
- Laguna · USDA Forest Service · 14 mi · 97 sites
- Horse Heaven Group · USDA Forest Service · 14 mi · 3 sites
- Vallecito County Park · City, County & Regional Parks · 15 mi
All public campgrounds in California · Every state and province · Facts read from the operator 2026-08-29. Confirm fees, rules and current status with the operator before you go.