Month-by-month travel weather
San Francisco August weather
San Francisco, United States · August
Warm spells happen, but layers still matter
August stays dry, and some warm spells can happen, especially on clear days.
Even then, evenings can cool down quickly and wind can flip comfort—layers remain useful.
August averages at a glance
Average low
around 13–14°C
Average high
around 20–22°C
Average precipitation
around 0–5 mm
Rainy days
about 0–1 days
What to wear in August in San Francisco
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • T-shirts + thin layer works well.
- • Wind layer helps.
- • Comfortable shoes help.
Travel tips for visiting San Francisco in August
- • Within a day, it can go from warm sun to cool wind—plan layers.
- • Carry one layer for late hours.
August weather in San Francisco — FAQ
Q. Is August like LA heat?
A. Usually not—SF tends to stay cooler and windier.
Q. Is fog common?
A. Fog and marine layer are common summer features.
Explore San Francisco
These pages are connected so you can compare conditions and decide for yourself.