O'Neill Regional Park
About
O'Neill Regional Park is a county park managed by the County of Orange in California, about a mile from the town of Rancho Santa Margarita. It anchors a cluster of trails and climbing spots on the edge of the Santa Ana foothills region, making it a convenient base for a day outdoors close to town. Spring and late fall are the most comfortable times to visit. At a nearby weather station, typical April highs run around 76°F and November highs about 76°F. Summer is noticeably hotter, with August highs averaging about 90°F, and most of the year's few wet days fall in winter. Several trails start within a mile of the park. The Arroyo Trabuco Trail, Mesa Trail and Edna Spaulding Trail are each about 0.7 miles away. Climbers can find Batman Boulder about 4 miles off.
Park size
3,584 acres
Inside this park
Trails
Facts about this place
When to go
Best time to go: Oct–Jun. The mildest months here, with typical highs of 68–84°F and lows of 48–59°F.
Typical monthly averages (not a forecast) from the Irvine Rch, CA weather station, 8.3 mi away. High / low in °F.
- Jan69° high49° low
- Feb70° high48° low
- Mar73° high50° low
- Apr76° high52° low
- May79° high56° low
- Jun82° high59° low
- Jul88° high62° low
- Aug90° high62° low
- Sep89° high62° low
- Oct84° high58° low
- Nov76° high53° low
- Dec68° high48° low
Where it is
- O'Neill Regional Park · Public land
- Nearest town
- Rancho Santa Margarita, California · 1 mi
Source: NIFC Jurisdictional Units; USGS GNIS populated places
Nearby
- Arroyo Trabuco TrailHiking0.7 mi
- Mesa TrailHiking0.7 mi
- Edna Spaulding TrailHiking0.7 mi
- Batman BoulderRock climbing4.2 mi
- Santa Ana MountainsRock climbing7.7 mi
- Trabuco CreekRock climbing7.7 mi
- Falcon GroupCamping8.7 mi
- Blue Jay CampgroundCamping9.3 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
