🇺🇸 San Francisco vs 🇨🇭 Zürich

San Francisco's climate is shaped by its position on a peninsula surrounded by the Pacific Ocean and San Francisco Bay. The coastal fog (Karl the Fog) rolls in through the Golden Gate each summer afternoon, keeping temperatures mild year-round. The city has dramatically different microclimates — the Sunset District fog-bound while the Mission basks in sun on the same day.

Zürich sits at the northern end of Lake Zürich with the Alps to the south and the Jura mountains to the northwest. The lake moderates temperatures significantly — winters are milder and summers cooler than surrounding inland areas. The Föhn (warm southern wind) can raise temperatures dramatically in spring and fall.