Sf Weather
In short
San Francisco weather is characterised by microclimates and frequent fog, often resulting in much cooler temperatures than nearby inland areas.
In plain words
The weather changes quickly depending on which part of the city you are in. Thick fog often rolls in from the ocean, making it feel chilly even when the sun is out.
A simple example
You might wear a heavy jumper in the foggy Richmond District while someone in sunny Oakland enjoys a t-shirt.
Why it matters
Understanding these local shifts helps people dress correctly for the day. It also affects visibility for transport and outdoor activities.
Easy to mix up
Do not confuse the cool coastal breeze with a general drop in regional temperature.