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

Looking to travel to San Diego in May? This guide provides all the details you need.

In San Diego the weather in May is generally perfect, characterized by pleasant temperatures and low rainfall. Anticipate daytime temperatures around 21°C, while night temperatures can drop to 15°C.

San Diego in May usually receives low rainfall, averaging around 9 mm for the month. Typically around 2 days of rainfall is expected.

With around 260 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit. January, February, March, April, May, June, July, August, September, October and November generally stand out with the best circumstances. While December tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized San Diego climate page with graphs.

 

San Diego, monthly averages in May

Min Temperature 15°C  
Max Temperature 21°C  
Chance of Rain 7%  
Precipitation 9 mm  
Rainy days 2 days  
Humidity 71%  
Sunshine 260 hours  
Percentage Sunshine 58%  

Where to go in the United States of America in May

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

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in San Diego in May?

For visitors traveling to San Diego, 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.

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
Barbeque
9/10
Camping
10/10
Outdoor sports
10/10

Interested in more climate information?

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

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