San Ysidro weather in September (California, United States of America)

What's the typical weather in San Ysidro for September? Is now the perfect time to visit? Find all the weather insights for this month on this page.

Temperatures

Experience perfect weather in San Ysidro in September, characterized by high temperatures and almost no rainfall. Expect temperatures to climb to 27°C during the day, with nighttime readings dropping to 17°C. With its warmest temperatures, this month is ideal for summer activities. Pack light clothing and sun protection to enjoy the heat.

Precipitation

San Ysidro in September usually receives almost no rainfall, averaging around 4.1 mm for the month. Based on our climate data of the past 30 years, about a single day of rain are anticipated.

Average sunshine

With approximately 272 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

If you're a fan of comfortable temperatures and drier conditions, September 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 Ysidro climate page with graphs.

 

San Ysidro, monthly averages in September

Min Temperature 17°C  

Max Temperature 27°C  

Chance of Rain 3%  

Precipitation 4.1 mm  

Rainy days a single day  

Humidity 79% *  

Sunshine 272 hours *  

Percentage Sunshine 73% *  

Data from: Tijuana, Mexico (2 KM, 1 Miles).

Where to go in the United States of America in September

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

Weather conditions Weather

Temperatures

Precipitation

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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 this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.

What To Do

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in San Ysidro.

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 travel conditions. Find out where to go with our weather planner.