California · Rock climbing · Yosemite National Park

Phobos/Deimos Cliff

Phobos/Deimos Cliff in California has 6 climbing routes with sport and trad options.

Phobos/Deimos CliffPhoto: derlandsknecht, CC BY-SA 2.0 (via Flickr)
6 routes
5.9 – 5.12a
Trad · Sport

Is Phobos/Deimos Cliff open right now?

No closures listed

The National Park Service lists no closures for Yosemite National Park.

As of · Source: NPS · Yosemite National Park. Agencies don't list every closure — check before you go.

Best time to visit Phobos/Deimos Cliff

Best months: June–September. 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

    41° / 13°

  2. Feb

    38° / 12°

  3. Mar

    42° / 15°

  4. Apr

    45° / 22°

  5. May

    54° / 27°

  6. Jun

    65° / 33°

  7. Jul

    71° / 38°

  8. Aug

    70° / 36°

  9. Sep

    65° / 32°

  10. Oct

    57° / 26°

  11. Nov

    47° / 20°

  12. Dec

    40° / 12°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Tuolumne Meadows Rs, CA, 6 mi away at 8,694 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Phobos/Deimos Cliff is a climbing area in Yosemite National Park, California, within the Yosemite Wilderness. The land is managed by the National Park Service, and a fee is charged for visits. Summer is the most comfortable time to go. Typical averages from a nearby weather station at Tuolumne Meadows show July highs around 71°F with lows near 38°F, while winter highs stay in the low 40s and lows drop to about 12°F. Other climbing areas sit close by: Arena, The is about 0.2 miles away, and Block, The and *Tuolumne Bouldering are each about 0.3 miles away. Polly Dome Lakes Trail, roughly 1.1 miles off, is the nearest hike.

Keep exploring — more climbs worth the drive