California · Rock climbing · Running Springs

The Warm Up Boulders

Warm Up Boulders in California has 13 bouldering routes across 5 difficulty grades.

13 routes
V0 – V2
Bouldering

Is Warm Up Boulders, The open right now?

Closure in the area

There's a closure order in Mountaintop Ranger District. It doesn't name Warm Up Boulders, The, so check the source for the area it covers.

As of · Source: USFS · Mountaintop Ranger District. Agencies don't list every closure — check before you go.

Best time to visit The Warm Up Boulders

Best months: May–October. 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

    46° / 24°

    6 wet

  2. Feb

    46° / 24°

    6 wet

  3. Mar

    51° / 27°

    6 wet

  4. Apr

    57° / 31°

    4 wet

  5. May

    66° / 37°

    2 wet

  6. Jun

    75° / 43°

    1 wet

  7. Jul

    80° / 50°

    2 wet

  8. Aug

    79° / 49°

    3 wet

  9. Sep

    73° / 44°

    2 wet

  10. Oct

    63° / 35°

    2 wet

  11. Nov

    53° / 28°

    3 wet

  12. Dec

    46° / 24°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Big Bear Lake, CA, 7.9 mi away at 6,753 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

The Warm Up Boulders is a bouldering area in the Mountaintop Ranger District of San Bernardino National Forest in California, managed by the Forest Service. It sits among a cluster of climbing spots, with the Warm Up Boulder and Highball Boulder boulders each about 0.1 mile away. The area is a bouldering destination rather than a route with a set distance or climb. Thirteen bouldering problems make up the crag, and they all sit within a short walk of one another. The routes run from V0 to V2, with V1 as the median grade. Among the named problems are Squirt at V0+, Butterflied at V1 and Butterfield at V2. Summer is the most comfortable time to visit. Typical averages from the nearby Big Bear Lake weather station show July highs around 80°F with lows near 50°F, while winter highs sit in the mid-40s. Nearby, the Little Green Valley and Ve Trail hikes are both under a mile away. Shady Cove Group Campground is about a mile off, and Arrowbear Lake, roughly 1.6 miles away, offers fishing.

Routes (13)