Mount Tam Boulders

Is Mount Tam Boulders open right now?

Closure in the area

There's a closure order in Golden Gate National Recreation Area. It doesn't name Mount Tam Boulders, so check the source for the area it covers.

• China Beach Construction & Seacliff Avenue Closures Fall - Winter 2026

  Park closure covering Golden Gate National Recreation Area · NPS · Golden Gate National Recreation Area

• Auto-Theft Warning - Only Bring What You Need to the Park

  Park alert covering Golden Gate National Recreation Area · NPS · Golden Gate National Recreation Area

As of Oct 23, 8:00 pm PDT · Source: NPS · Golden Gate National Recreation Area. Agencies don't list every closure — check before you go.

Best time to visit Mount Tam Boulders

Best months: Year-round. 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

   57° / 42°

   11 wet

2. Feb

   61° / 43°

   11 wet

3. Mar

   65° / 44°

   10 wet

4. Apr

   69° / 46°

   6 wet

5. May

   74° / 50°

   4 wet

6. Jun

   80° / 52°

   1 wet

7. Jul

   83° / 53°

   0 wet

8. Aug

   83° / 54°

   0 wet

9. Sep

   82° / 53°

   1 wet

10. Oct

    76° / 50°

    4 wet

11. Nov

    64° / 45°

    8 wet

12. Dec

    56° / 42°

    11 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Kentfield, CA, 4.5 mi away at 145 ft. The station sits about 1,200 ft lower than this place, so expect it a little cooler here. Source: NOAA NCEI U.S. Climate Normals 1991–2020.