Month-by-month travel weather
San Francisco May weather
San Francisco, United States · May
Evenings cool down quickly
May is often drier and pleasant for long outdoor days. Sun can feel warm in sheltered spots.
Wind can still make it feel cool, and evenings often drop quickly—thin layers help.
May averages at a glance
Average low
around 11–12°C
Average high
around 17–19°C
Average precipitation
around 10–30 mm
Rainy days
about 2–5 days
What to wear in May in San Francisco
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Mix of T-shirts and long sleeves + thin outer layer.
- • Wind layer helps.
- • Optional sunglasses help on bright days.
Travel tips for visiting San Francisco in May
- • Coastal and bridge routes can feel one step cooler.
- • Pack a layer for late hours.
May weather in San Francisco — FAQ
Q. Is May warm?
A. Often comfortable; sun feels warm but wind can keep it cool.
Q. Does it rain in May?
A. Sometimes, but less than winter.
Explore San Francisco
These pages are connected so you can compare conditions and decide for yourself.