Pack or skip
Packable down jacket for San Francisco in August
Verdict
Optional
Handy for evening chills; skip if you're tight on space.
Why
San Francisco in August averages highs of 68Β°F, lows of 56Β°F, 1 rainy days.
That climate makes a packable down jacket a judgment call. Handy for evening chills; skip if you're tight on space.