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

Interested in knowing the climate of San Luis Obispo in September? Discover if this is the best time for your journey with our detailed monthly weather breakdown.

Temperatures

The weather in San Luis Obispo is usually perfect in September, characterized by high temperatures and almost no rainfall. September ushers in the summer season. In the daytime, temperatures tend to hover near 28°C, cooling down at night to around 12°C. As the year's hottest month, it's essential to have your summer gear ready. Keep cool with light clothing and enjoy the warmth.

Precipitation

San Luis Obispo in September usually receives almost no rainfall, averaging around 0.4 mm for the month. The month is marked by minimal rainfall, making it a good time for outdoor activities. Enjoy the dry spell, a great time to go hiking. Typically around a single day days of rainfall are expected.

Average sunshine

There are approximately 270 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

So this is a great month to visit if you prefer dry days with pleasant temperatures. March, April, May, June, July, August, September, October and November typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.

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

 

San Luis Obispo, monthly averages in September

Min Temperature 12°C  

Max Temperature 28°C  

Chance of Rain 3%  

Precipitation 0.4 mm  

Rainy days a single day  

Sunshine 270 hours *  

Percentage Sunshine *  

Data from: Paso Robles, the United States of America (38 KM, 23 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 Luis Obispo.

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.