Pack or skip
Sun hat for Lucerne in December
Verdict
Skip it
Highs around 38°F — too cool for prolonged sun exposure.
Why
Lucerne in December averages highs of 38°F, lows of 29°F, 12 rainy days.
That climate means a sun hat isn't pulling its weight. Highs around 38°F — too cool for prolonged sun exposure.