Pack or skip
Packable down jacket for London in April
Verdict
Pack it
Lows around 43°F — the packable puffer covers 90% of layering needs.
Why
London in April averages highs of 57°F, lows of 43°F, 10 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 43°F — the packable puffer covers 90% of layering needs.