California · Rock climbing · Los Gatos

Castle Rock Loop

18 bouldering routes at Castle Rock Loop in California range from 5.6 to 5.12a.

18 routes
V0- – V12-
Bouldering

Best time to visit Castle Rock Loop

Best months: April–November. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

  1. Jan

    55° / 41°

    14 wet

  2. Feb

    55° / 40°

    14 wet

  3. Mar

    58° / 41°

    13 wet

  4. Apr

    62° / 43°

    10 wet

  5. May

    67° / 47°

    7 wet

  6. Jun

    75° / 52°

    3 wet

  7. Jul

    81° / 58°

    1 wet

  8. Aug

    81° / 59°

    1 wet

  9. Sep

    79° / 57°

    2 wet

  10. Oct

    71° / 52°

    6 wet

  11. Nov

    60° / 44°

    11 wet

  12. Dec

    54° / 40°

    15 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Skyline Ridge Preserve, CA, 7.6 mi away at 2,270 ft. The station sits about 900 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Castle Rock Loop is a climbing area within Castle Rock State Park in California, managed by State Park and Recreation. The park is the land unit that holds the loop, and it sits about a tenth of a mile from Castle Rock Proper, the 360 Degree Boulder and the Castle Rock Trail. Summer is the most comfortable time to visit. Typical averages from a nearby weather station at Skyline Ridge Preserve show July and August highs around 81°F with lows in the upper 50s and only a day or two of rain each month. That station sits well below the park, so temperatures here run cooler. Several other climbing spots and hikes start right around the loop. The Ridge Trail and the Skyline Trail are both within a mile, and the San Lorenzo River, about 9 miles away, offers canoeing.

Routes (18)

Bates Arete Boulder(1)

Bates AreteV4

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Castle Rock ProperPhoto: npdoty, CC BY 2.0 (via Flickr)

Castle Rock Proper

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