Average weather in May in San Francisco (California), United States of America

The average minimum temperature (usually the minimum temperature is noted during the night) in San Francisco in May is 11.0°C (51.8°F). May is a dry month with an average of 18mm (0.7in) rain. It rains on average a total of 3 days. You can expect very pleasant temperatures during the day. The average maximum daytime temperature lies around 18.0°C (64.4°F). If you enjoy looking at a blue sky and love the sun than this is a great time to go to San Francisco with 324 hours of sun.


So what to wear in May? For visitors traveling to San Francisco we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. With a water temperature of around 13.0°C (55.4°F), there is no need to bring your swimwear.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in May look at the numbers below.

Monthly Averages in May

Show in Fahrenheit

Min Temperature 11 °C
Max Temperature 18 °C
Water Temperature 13 °C
Chance of Rain 10%
Precipitation 18mm
Rainy Days 3
Sunshine Hours 324

Where to stay in San Francisco

Where to go in United States of America in May

Find out more about the weather in United States of America in May and which places have the best weather conditions in this month.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Cycling
10/10
Walking
10/10
Camping
10/10
Outdoor sports
10/10

Weather Forecasts for San Francisco (California)

THU Aug 18
19°C | 13°C
Patchy rain possible

Patchy rain possible

FRI Aug 19
18°C | 13°C
Patchy rain possible

Patchy rain possible

SAT Aug 20
20°C | 13°C
Patchy rain possible

Patchy rain possible

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in San Francisco.

Our site offers climate and forecast data for almost all countries in the world. Are you going to United States of America? On this website you can find historical weather averages for many cities in United States of America. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.