🇺🇸 Riverside vs 🇺🇸 San Francisco

Riverside in the Inland Empire sits well east of the coast with minimal marine influence. Surrounded by mountains on multiple sides, summer temperatures regularly exceed 105°F. The city was historically known for its citrus groves but suburban growth has intensified the heat island substantially.

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.